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Buick · Known Issues

2013-2023 Buick Encore Problems: 25 Known Issues

2013-2023 model years · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026

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Issue summary

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2013-2023 Buick Encore has 25 documented known issues, with 13 rated critical. The most serious are 2019 Encore Air Bag Non-Deployment - SDM Not Taken Out of Manufacturing Mode, Encore 1.4L Turbo (LUJ/LUV) Timing Chain Stretch ($1,200-$4,000 repair), Encore GX (2020+) Three-Cylinder Turbo Stalling and Low-Oil-Pressure ECM Recall, Encore GX Transmission Shudder, Jerking and Solenoid Faults ($300-$4,000 repair), Engine Stalling and Sudden Power Loss While Driving (Early Models) ($300-$1,000 repair), Turbocharger / Oil Supply Line Failure Causing Sudden Loss of Power ($1,200-$3,000 repair), Transmission Fluid Leak From an Under-Bolted Start/Stop Accumulator (Recall 20V668000), Front Seat Hook Bracket Incomplete Weld - Seat May Not Stay Anchored in a Crash (Recall 14V446) ($0-$0 repair), Front Lap-Belt Pretensioner Cable Does Not Lock Retracted (Recall 14V488) ($0-$0 repair), Encore GX Front Seat Rear Attachment Bolts Not Installed (Recall 20V537) ($0-$0 repair), Electric Power Steering Circuit-Board Wear - Sudden Loss of Steering Assist (Recall 15V146) and Cold-Morning 'Service Power Steering' Faults ($0-$1,600 repair), Airbag SDM Software Diagnostic-Test Fault - Frontal Airbags and Pretensioners May Not Deploy (Recalls 16V651 and 17V437) ($0-$0 repair) and Encore GX Electronic Brake Boost Module Sensor Contamination - Loss of Brake Assist (Recall 20V588) ($0-$0 repair). Across all issues with published estimates, repair costs range from $150 to $4,000. DIY maintenance guides at au7o.io.

In This Article

  • Encore Safety/Recalls5
  • Encore Engine8
  • Encore Transmission3
  • Encore Steering1
  • Encore Brakes1
  • Encore Electrical3
  • Encore Drivetrain2
  • Encore Cooling1
  • Encore Emissions1
  • Recalls3
  • FAQ
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In This Article

  • Safety/Recalls5
  • Engine8
  • Transmission3
Steering
1
  • Brakes1
  • Electrical3
  • Drivetrain2
  • Cooling1
  • Emissions1
  • Recalls3
  • FAQ
  • All 25 Known Issues

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    Certain 2019 Buick Encore crossovers are covered by GM safety recall 18V774000 (GM number 18365). On these vehicles the Sensing Diagnostic Module - the air bag control module - may still be in "manufacturing mode," the setting used during vehicle assembly, rather than the normal operating mode. An Encore in that condition may not deploy its air bags in a crash, and GM states this increases the risk of injury. The campaign is very small: 12 vehicles across all of the models included (Buick Encore plus the Chevrolet Spark, Traverse and Trax), a figure that applies to the whole campaign and not to the Encore alone.

    Common Symptoms

    • Air bags may not deploy in a crash

    How to Fix

    Buick dealers will reprogram the SDM to the correct mode free of charge; the recall began November 6, 2018. Enter your VIN at nhtsa.gov/recalls to see whether your specific Encore is included and whether the remedy has already been performed, or contact Buick customer service at 1-800-521-7300 and reference recall 18365.

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    High ConfidenceVerifiedReviewed Aug 2026

    On 2013-2014 Encores (124,007 GM vehicles in the campaign, including Chevrolet Trax and others) the weld on the front seat hook bracket assembly could be incomplete. Under a high-load event such as a frontal crash the front seat could break free of its lower track, greatly increasing injury risk to the occupant. The defect is not detectable by the owner in normal use.

    Common Symptoms

    • No symptoms in normal driving
    • Front seat may shift or detach in a crash

    How to Fix

    Recall 14V446: dealers inspect the seat hook bracket weld and replace the lower seat track assembly as necessary at no charge. Verify completion by VIN on any used 2013-2014 Encore.

    Typical repair cost:$0 - $0

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    High ConfidenceVerifiedReviewed Sep 2026

    On 48,114 model-year 2013 Encores (and Chevrolet Trax) the front driver and passenger lap belt pretensioner cables might not remain locked in the retracted position when placed under load. In a crash the belt could pay out more webbing than designed, so the occupant is not adequately restrained.

    Common Symptoms

    • No warning to the driver
    • Lap belt may not hold occupant firmly in a crash

    How to Fix

    Recall 14V488 (announced 8 Aug 2014): dealers replace the front driver and passenger lap belt pretensioners free of charge. Confirm completion by VIN.

    Typical repair cost:$0 - $0

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    High ConfidenceVerifiedReviewed Sep 2026

    Certain 2020 Encore GX crossovers left the assembly plant with one or both front seats missing their rear seat-track attachment bolts. A seat that is not fully bolted down can move or break free in a crash, and the missing bolts can also produce a seat that rocks or clunks under braking. GM issued NHTSA recall 20V537 for the affected 2020 build.

    Common Symptoms

    • Front seat rocks or clunks under braking or acceleration
    • No symptom until a crash if bolts are simply missing

    How to Fix

    Recall 20V537: dealers inspect both front seats and install the missing rear attachment bolts at no charge. Any 2020 Encore GX with a seat that rocks fore-and-aft should be checked immediately.

    Typical repair cost:$0 - $0

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    Distinct from the 2019 'manufacturing mode' SDM recall, 2014-2017 Encores (built 9 Jul 2013 to 26 Aug 2016) were part of GM's 3.6-million-vehicle recall 16V651 (GM #16007). Under certain driving conditions the airbag sensing and diagnostic module (SDM) software could enter a diagnostic test routine; while in that test, the frontal airbags and seat-belt pretensioners would not deploy in a crash. Some vehicles that were 'fixed' did not receive the complete software update, so GM issued a follow-up recall 17V437 (GM #17287, 40,683 vehicles across GM brands) in July 2017 to reflash them again. The condition gives no warning to the driver.

    Common Symptoms

    • No warning - airbags and pretensioners silently unavailable during SDM diagnostic test
    • Frontal airbags did not deploy in a frontal crash
    • Possible airbag readiness light in some cases

    How to Fix

    Check the VIN against both 16V651 and 17V437. The remedy is a free dealer reflash of the SDM software; if the airbags had previously deployed the SDM is replaced. A vehicle that only received the 16V651 reflash may still need the 17V437 reflash - dealers can confirm the software level.

    Typical repair cost:$0 - $0

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    The 1.4L Turbo LUJ (2011-2015) and LUV (2016+) in Encore — and shared Chevy Cruze/Sonic/Trax — develops timing chain stretch typically between 80,000-130,000 miles. Cold-start rattle, then misfire codes, then risk of chain skip. Same engine family used in Opel Astra J (Astra Adam Mokka — see prior Opel issues).

    This issue also affects: Buick LeSabre, Buick Park Avenue, Buick Cascada

    Common Symptoms

    • cold start rattle
    • misfire
    • check engine light
    • limp mode

    How to Fix

    Full chain kit including chain, tensioner, guides, sprockets ($1,200-$2,000). Use dexos1 full-synthetic 5W-30 and stick to 5,000-mile intervals — extended OLM intervals are the dominant cause. Catastrophic chain skip means head rebuild ($3,500+).

    Typical repair cost:$1,200 - $4,000

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    The second-generation Encore GX uses 1.2L and 1.3L turbocharged three-cylinder engines and has drawn complaints of reduced engine power, stalling, and lurching. GM issued a recall in which the engine control module (ECM) could fail to clear the permanent status of DTC P0521 (engine oil pressure sensor performance), masking a real low-oil-pressure condition; the remedy is an ECM reprogram. Owners also report elevated oil consumption on these small turbo engines.

    This issue also affects: Buick Envision, Cadillac Escalade, Chevrolet Avalanche

    Common Symptoms

    • Reduced engine power
    • Engine stalling
    • Lurching / jolting
    • Oil pressure warning not displaying
    • Elevated oil consumption

    How to Fix

    Have the ECM reprogrammed under the GM recall to ensure low-oil-pressure conditions (P0521) are properly flagged. Diagnose stalling/power-loss with a scan tool. Monitor oil level frequently given the small-displacement turbo's sensitivity to low oil.

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    Medium ConfidenceVerifiedReviewed Jun 2026

    The 2013-2015 Encore generated hundreds of NHTSA complaints for engine stalling and abrupt loss of power, including incidents at highway speed where the vehicle decelerated unexpectedly. Owners report rough idle, hesitation, misfires, and the "engine power reduced" message, often traced to sensor faults, throttle body issues, or turbo-related underboost. Multiple reports note the problem recurring even after throttle body or sensor replacement, creating a serious safety hazard in traffic.

    This issue also affects: Buick LeSabre, Buick Park Avenue, Buick Cascada

    Common Symptoms

    • Stalling while driving
    • Sudden deceleration at highway speed
    • Engine power reduced message
    • Rough idle
    • Hesitation / misfire
    • Shaking

    How to Fix

    Diagnose with a scan tool to isolate the trigger (camshaft/crankshaft position sensors, throttle body, turbo underboost, or misfire). Common repairs include throttle body replacement, sensor replacement, and addressing the turbo/PCV issues above. Apply current GM software updates, as some driveability concerns were addressed via ECM reprogramming.

    Typical repair cost:$300 - $1,000

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    The 1.4L turbo Encore is known for turbocharger failures, often tied to the turbo oil feed/supply line, that cause a sudden loss of power while driving and a persistent check engine light. NHTSA complaints document dangerous highway events where the vehicle abruptly lost acceleration. GM later issued a field action/warranty extension covering 2017-2018 Encore turbochargers for 10 years / 120,000 miles, with the repair replacing the turbo assembly and associated oil-feed seals and gaskets.

    This issue also affects: Buick Cascada, Buick Encore GX, Cadillac CT6

    Common Symptoms

    • Sudden loss of power on the highway
    • Reduced engine power warning
    • Check engine light
    • Turbo underboost
    • Loss of acceleration

    How to Fix

    Replace the turbocharger assembly along with the turbo oil feed pipe seals, oil return pipe gaskets, exhaust/coolant seals, and related hardware per GM's procedure. For 2017-2018 models, check eligibility for the GM turbocharger warranty extension (10 yr / 120,000 mi). Maintain strict oil change intervals to avoid oil-feed line coking that accelerates turbo failure.

    Typical repair cost:$1,200 - $3,000

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    High ConfidenceVerifiedReviewed Jun 2026

    This is the upstream half of the 1.4L PCV story and is often missed. The intake manifold on the LUV/LUJ 1.4T contains a small, non-serviceable orange one-way check valve in the PCV port. Under boost that valve is meant to block pressure from reaching the crankcase; when it fails and is ingested by the engine, boost pressure enters the crankcase, the camshaft-cover diaphragm tears, and the engine develops a large vacuum leak. The result is P1101 (intake airflow system performance) with P0171 (system too lean), rough idle, high idle, stalling and long-term fuel trims in the +25% to +70% range. Owners who replace only the valve cover watch the new one fail within months because the missing manifold check valve was never addressed. A ScannerDanner forum diagnosis of a 2019 Encore documents exactly this: check valve gone from the manifold, 70% fuel trim, fixed by an external PCV kit.

    This issue also affects: Buick LeSabre, Buick Park Avenue, Cadillac Allante

    Common Symptoms

    • Check engine light with P1101 and/or P0171
    • Rough or surging idle
    • High long-term fuel trims (+25% or more)
    • Stalling at idle
    • Whistle at the valve cover after diaphragm tears
    • Repeat valve-cover failure after replacement

    How to Fix

    Pull the PCV hose at the intake manifold and look into the port: if the orange check valve is missing, the manifold is the root cause. Official repair is a new intake manifold (roughly $400-$700 installed) plus a new camshaft cover if the diaphragm has torn ($200-$350). Many owners instead install an external PCV fix kit (CruzeKits or equivalent) that relocates the check valve into a serviceable inline fitting, which is cheaper and prevents the repeat failure. Clear codes and confirm fuel trims return to single digits.

    Typical repair cost:$150 - $900

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    High ConfidenceVerifiedReviewed Sep 2026

    Many owners of the 1.4L turbo Encore report the engine consuming oil at an elevated rate between changes, often without an obvious external leak. Low oil levels left unchecked can starve the turbocharger and accelerate engine wear. Consumption is frequently linked to PCV system failure forcing oil through the intake, and to general wear in the LUV/LUJ engine family.

    Common Symptoms

    • Low oil between changes
    • Oil light or low oil warning
    • Burning oil smell
    • Blue exhaust smoke
    • Frequent need to add oil

    How to Fix

    Check oil level frequently between changes and top off as needed. Diagnose and repair the PCV/camshaft cover system, which is a common contributor. Perform a documented oil-consumption test at a dealer; persistent high consumption may require valve cover, PCV, or piston ring/seal service.

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    High ConfidenceVerifiedReviewed Jun 2026

    The 1.4L turbocharged engine (LUV/LUJ family) used in the first-generation Encore is prone to a ruptured PCV pressure-regulator diaphragm built into the plastic camshaft (valve) cover. When the diaphragm cracks, unmetered air enters the intake, producing a loud high-pitched whistle or squeal that owners describe as a boiling tea kettle under the hood, along with rough idle and stalling at stops. GM acknowledged the defect with Special Coverage N202299080, extending warranty on the PCV/camshaft cover to 10 years / 120,000 miles for certain 2014 Encore (and related Cruze/Sonic/Trax) vehicles.

    This issue also affects: Buick LeSabre, Buick Park Avenue, Cadillac Allante

    Common Symptoms

    • Loud tea-kettle / boiling whistle under hood
    • Check engine light
    • Rough idle
    • Stalling at idle or stoplights
    • Vacuum leak

    How to Fix

    Replace the camshaft (valve) cover, which contains the integrated PCV diaphragm; many owners upgrade to a revised cover. The root-cause check valve in the intake manifold should also be addressed (replace manifold or install an external check-valve/PCV bypass kit) to prevent turbo boost from over-pressurizing the crankcase. Check eligibility under GM Special Coverage N202299080.

    Typical repair cost:$150 - $600

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    High ConfidenceVerifiedReviewed Jun 2026

    The 1.4L LUV turbo uses a single four-tower ignition coil cassette that sits on the valve cover and fires all four cylinders. Heat cycling cracks the coil body or its boots, and the cassette can lose spark on one or more cylinders at once - a Bob Is The Oil Guy thread on an Encore 1.4T misfire and multiple BuickForums P0300 threads trace the misfire to the coil pack (often with worn plugs) after the PCV vacuum-leak possibility is ruled out. Cylinder 3 is the most frequently flagged (P0303). Because the cassette is one part, a failing coil can present as a random multi-cylinder misfire rather than a single dead cylinder.

    This issue also affects: Buick LeSabre, Buick Park Avenue, Buick Cascada

    Common Symptoms

    • Flashing or steady check engine light with P0300/P0301-P0304
    • Rough idle and shaking
    • Hesitation and loss of power under boost
    • Misfire worse when engine is hot

    How to Fix

    Rule out the PCV/intake-manifold vacuum leak first (fuel trims), then check plug gap and coil resistance. The fix is a new coil cassette (roughly $120-$250 for the part, about an hour of labor) and a fresh set of the correct iridium plugs. Dealer repair is typically $300-$500. Avoid bargain coil packs - repeat failures are common.

    Typical repair cost:$150 - $500

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    Medium ConfidenceVerifiedReviewed Sep 2026

    The Encore GX has frequent transmission complaints of shuddering, slipping, jerking, and lurching during acceleration, especially in 2021-2023 model years. Causes documented by owners and GM bulletins include defective shift solenoids producing erratic or rough shifts and failing torque converters causing shudder; some 2021 units required full transmission replacement. A separate GM fix addresses out-of-spec clutch retaining rings on certain later units.

    Common Symptoms

    • Shuddering / shaking on acceleration
    • Jerking and lurching while driving
    • Slipping or hesitation
    • Rough or erratic shifting
    • Failure to engage correct gear

    How to Fix

    Diagnose with a scan tool for solenoid and torque-converter fault codes. Repairs range from shift-solenoid replacement and a torque-converter clutch service to torque converter or full transmission replacement in severe cases. Check for applicable GM service bulletins and lemon-law/warranty coverage on repeat failures.

    Typical repair cost:$300 - $4,000

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    High ConfidenceVerifiedReviewed Jun 2026

    Buick recalled 2019 and 2020 Encore models as part of a wider General Motors campaign covering vehicles built between 2018 and 2020. The problem is manufacturing hardware: the start/stop accumulator endcap may have missing bolts. If the endcap is not properly secured, transmission oil can leak from the accumulator. According to the recall record, that leak may progress far enough to cause a loss of propulsion — the Encore can stop moving under its own power, raising the risk of a crash — and transmission fluid escaping near an ignition source may increase the risk of a fire.

    Common Symptoms

    • Transmission fluid leak / fluid on the driveway
    • Loss of propulsion

    How to Fix

    Buick dealers perform this repair at no cost. The dealer inspects the start/stop transmission accumulator on your Encore and replaces it if any bolts are missing. Owner notification began December 15, 2020, so the remedy has long been available — the only question is whether your particular Encore has had it. Check the VIN at nhtsa.gov/recalls, and contact Buick customer service at 1-866-608-8080 to arrange the inspection. GM's number for the recall is N202313440.

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    High ConfidenceVerifiedReviewed Aug 2026

    First-generation Encores with the 6T40/6T45 6-speed automatic are reported to develop harsh or delayed shifts, slipping, and a shudder or surge particularly around the 2nd/6th gear range. A common cause is debris blocking the oil passage that feeds the 2-6 clutch regulator valve, along with worn fluid, failing shift solenoids, and torque-converter lockup shudder. NHTSA powertrain complaints span the early-to-mid model years.

    Common Symptoms

    • Harsh or delayed shifts
    • Slipping between gears
    • Shudder or surge on acceleration
    • Flare into 2nd/6th gear
    • Jerking / lurching

    How to Fix

    Service the transmission with the correct fluid; for shudder, a torque-converter clutch fluid/flush or solenoid replacement may help. Persistent 2-6 slip/flare typically requires valve body/channel-plate cleaning or rebuild. Confirm GM software calibration is current, as updated shift logic addressed some complaints.

    Typical repair cost:$200 - $2,500

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    Medium ConfidenceVerifiedReviewed Jun 2026

    The Encore uses a column-mounted electric power-steering unit. On 2,295 model-year 2015 Encores built 27 Nov 2014 to 24 Feb 2015, the steering column housing could contact and wear the power-steering printed circuit board, eventually causing a sudden loss of electric assist while driving. GM recalled these under NHTSA 15V146 (GM #15168) and replaced the steering column assembly. Beyond the recall population, BuickForums owners of 2013-2017 Encores report a 'Service Power Steering' warning with heavy steering on cold mornings that clears after a restart; in many of those cases the root cause was a weak battery or poor battery ground starving the EPS module of voltage, and in others the column EPS unit itself needed replacement.

    Common Symptoms

    • Sudden heavy steering while driving
    • Service Power Steering message on the driver information center
    • Steering assist lost on cold starts, returns after restart
    • Power steering warning lamp illuminated

    How to Fix

    For 2015 vehicles in the build window, confirm recall 15V146 was completed - the column assembly is replaced free of charge. For non-recall vehicles showing 'Service Power Steering', have the battery load-tested and the negative battery cable/ground checked first (cheap and frequently the cause). If the EPS module logs internal faults with a healthy battery, the steering column/EPS assembly is replaced, typically $900-$1,600 at a dealer.

    Typical repair cost:$0 - $1,600

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    The 2020-2021 Encore GX uses an electronic brake booster instead of a vacuum booster. A contaminant introduced by the material supplier into a sensor connection inside the brake boost module can interrupt communication between the sensor and the boost system. When that happens the electronic brake assist drops out and the pedal goes hard, requiring far more force to slow the vehicle. GM recalled the 2020-2021 Encore GX along with the 2021 Trailblazer, 2020 Corvette and Cadillac CT4/CT5/XT4 under NHTSA 20V588 (recall began 9 Dec 2020).

    Common Symptoms

    • Brake pedal suddenly hard, much more effort needed to stop
    • Service Brake Assist / brake warning message
    • ABS and brake warning lights illuminate

    How to Fix

    Recall 20V588: dealers replace the electronic brake boost module at no charge. Any Encore GX that shows a hard pedal, a 'Service Brake Assist' message or ABS/brake warning lights should be checked for the recall and for brake-boost module fault codes even after the recall was performed.

    Typical repair cost:$0 - $0

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    High ConfidenceVerifiedReviewed Sep 2026

    On 8,367 model-year 2013 Encores the electronic park lock lever in the ignition lock housing could allow the key to be removed while the transmission was not in Park. With the key out and the shifter in a drive or neutral position the vehicle could roll away after the driver walked off. GM recalled the vehicles under 16V502 in July 2016.

    Common Symptoms

    • Key can be pulled from the ignition with the shifter in Drive, Neutral or Reverse
    • Vehicle rolls after parking with the key removed

    How to Fix

    Recall 16V502: dealers inspect the ignition key cylinder lock housing and replace it if necessary at no charge. Until repaired, always confirm the shifter is fully in Park and the parking brake is applied before removing the key.

    Typical repair cost:$0 - $0

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    From 2018 the Encore added automatic engine stop/start, which leans on an AGM battery that is cycled far harder than a conventional battery. BuickForums carries repeated threads from 2018-2020 Encore and 2020+ Encore GX owners whose first symptom was stop/start quietly disabling itself, followed within months by a clicking no-crank, a 'Battery Saver Active' message or random warnings (StabiliTrak, power steering, infotainment resets) as voltage sagged. Several owners report needing a replacement battery before 30,000 miles, and dealers often replace it under the 3-yr/36k warranty. Because so many Encore modules are voltage-sensitive, a weak battery mimics far more expensive faults.

    Common Symptoms

    • Auto Stop/Start no longer activates
    • Clicking no-crank on a cold morning
    • Battery Saver Active message
    • Random Service StabiliTrak / Service Power Steering warnings
    • Infotainment reboots at startup

    How to Fix

    Treat a stop/start system that stops working as a battery warning, not a feature glitch. Load-test the AGM battery and clean the negative cable/ground; replace with a correct-spec AGM (roughly $220-$350 installed, and the body control module may need a battery-state reset with a scan tool). Under warranty the dealer replaces it free. Check the battery before chasing StabiliTrak, power-steering or radio faults on these years.

    Typical repair cost:$0 - $350

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    Low ConfidenceVerifiedReviewed Sep 2026

    First-generation Encores with the 7-inch IntelliLink system have a well-documented display failure: the screen intermittently goes black or reboots itself while driving, sometimes taking the audio, Bluetooth and the backup-camera image with it. BuickForums has a multi-page 'Black IntelliLink screen' thread and separate 2016 reports; a GM Authority owner thread describes a 2014 Encore radio/nav screen going black and rebooting. Early cases were addressed with software updates to the radio and HMI module; persistent cases needed the display or the radio (HMI) module replaced, which is a costly dealer repair once out of the 3-yr/36k bumper-to-bumper warranty. Since the backup camera renders on the same display, a dead screen also removes the camera view.

    Common Symptoms

    • Center display goes black while driving
    • Radio reboots on its own
    • Backup camera image not shown when in Reverse
    • Touchscreen unresponsive or frozen
    • Bluetooth audio drops with the screen

    How to Fix

    Try the soft reset first (hold Home and Fast-Forward/Seek until the unit reboots) and have the dealer check for a radio/HMI software update. If the blackouts continue, the display assembly or HMI module is replaced - roughly $500-$1,200 at a dealer depending on which module fails; remanufactured units through independent radio shops are cheaper. Document intermittent failures on video before the warranty expires so the dealer cannot claim 'no problem found'.

    Typical repair cost:$0 - $1,200

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    Medium ConfidenceVerifiedReviewed Sep 2026

    On 2013-2018 Encore AWD models the rear differential clutch control module (RDCM) sits low at the rear axle where road splash reaches it over time. Water enters the module and corrodes its circuit board. The most common result is loss of all-wheel-drive engagement with a 'Service AWD' / 'Service StabiliTrak' style message and codes C0800 and/or U0136; in rarer cases the corroded module back-feeds the network and causes a dead battery or loss of electric power-steering assist. Owners on BuickForums also describe the rear clutch randomly engaging with a pop or bang and binding in tight turns before the module fails outright. GM addressed this with Special Coverage bulletin 17436-02 ('Loss of All Wheel Drive Operation Due to Corrosion of Rear Differential Control Module'), which extends coverage on the RDCM and its harness for 2013-2018 AWD Encores.

    Common Symptoms

    • Service AWD message
    • Loss of all-wheel-drive function / front-wheel spin only
    • Rear differential randomly engaging with a pop or clunk
    • Binding in tight low-speed turns
    • Dead battery overnight
    • Service Power Steering message or loss of assist
    • DTC C0800 and/or U0136 stored

    How to Fix

    Dealer replaces the corroded RDCM harness and installs an updated RDCM (GM P/N 42463357, tagged with a green dot) and re-secures the harness to its original routing. Check with a dealer for Special Coverage 17436-02 eligibility by VIN before paying - the module and harness were covered well beyond the base warranty under that program. Out of coverage, expect roughly $500-$1,100 for module, harness and labor.

    Typical repair cost:$500 - $1,100

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    Community Reported
    High ConfidenceVerifiedReviewed Sep 2026

    Separate from the electronic module problem, the rear differential/clutch-coupling assembly on 2013-2019 Encore AWD models (shared with the Chevrolet Trax and Opel Mokka) suffers severe exterior corrosion of its aluminum housing in salt-belt states. The corrosion eats through the case, gear oil weeps out, and the ring-and-pinion and bearings run dry, producing a growl or grind that rises with road speed, clunks on throttle tip-in and binding on turns. An owner on Bob Is The Oil Guy documented a badly rotted differential housing on a 2018 GM vehicle of this family at modest mileage, and BuickForums carries rear-end noise threads on Encores of several years. Because the unit is a sealed assembly, the usual dealer repair is a complete replacement differential carrier, which is expensive on a vehicle of this class.

    Common Symptoms

    • Growling or grinding from the rear that rises with road speed
    • Gear-oil stain or wet corrosion on the rear differential housing
    • Clunk on acceleration or deceleration
    • Binding or hopping in tight turns
    • Low or empty differential fluid on inspection

    How to Fix

    Inspect the rear differential housing for white corrosion, weeping seams and a low fluid level at every oil change once the vehicle is 4-5 years old in a salt state. A housing that is only weeping can sometimes be saved by resealing and refilling; a cracked case or a differential that already growls needs a complete carrier assembly (used units are common because the unit rarely fails internally in dry climates). Dealer replacement runs roughly $1,800-$3,000; a used carrier installed independently is typically $800-$1,500. Under-coating the housing when new slows the corrosion considerably.

    Typical repair cost:$800 - $3,000

    Research This Issue

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    Community Reported
    High ConfidenceVerifiedReviewed Sep 2026

    The 1.4L LUV turbo in the 2013-2022 Encore (same family as the Cruze/Sonic/Trax 1.4T) loses coolant from several plastic-and-rubber weak points that fail in sequence as the engine ages. The water pump develops a weep from its seal, the plastic thermostat/water-outlet housing cracks where it bolts to the head, the turbo coolant feed/return lines and their O-rings seep, and the molded outlet hoses go brittle. Owners on BuickForums describe topping up a quarter cup a week, sweet smells, low-coolant warnings and, when ignored, overheating at highway speed (one 2015 overheated at 59k when brittle outlet hoses let go). Dealers frequently replace the water pump under the 5-yr/60k powertrain warranty, but the thermostat housing and hoses are often declared excluded, leaving owners to pay.

    This issue also affects: Buick Encore GX, Cadillac Allante, Cadillac Catera

    Common Symptoms

    • Low coolant warning / reservoir needs frequent topping
    • Sweet coolant smell after driving
    • Pink/orange crust on the water pump or thermostat housing
    • Coolant drips near the turbo
    • Engine overheating at highway speed
    • DTC P0128 (coolant thermostat) on a cracked housing

    How to Fix

    Pressure-test the cooling system to locate the leak rather than just topping up; a UV dye is the fastest way to separate pump weep from housing cracks and turbo-line seepage. Water pump replacement runs roughly $450-$800 (covered under powertrain warranty if in term). Thermostat housing replacement is $250-$500; an aftermarket aluminum housing is a popular permanent fix. Replace brittle outlet hoses and turbo coolant lines at the same time. Never run the engine with the coolant light on - the aluminum head and turbo do not tolerate overheating.

    Typical repair cost:$250 - $1,200

    Research This Issue

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    Community Reported
    High ConfidenceVerifiedReviewed Sep 2026

    Certain 2022 Buick Encore (and 2022-2023 Envision) models can experience evaporative-emissions purge pump failures that trigger a check engine light, cause emissions-test failures, reduce fuel efficiency, and may create driveability concerns. GM issued a special coverage adjustment extending warranty on the purge pump, reportedly up to 15 years / 150,000 miles, with reimbursement for owners who previously paid for the repair.

    Common Symptoms

    • Check engine light
    • Failed emissions / smog test
    • Reduced fuel economy
    • Minor driveability concerns

    How to Fix

    Replace the EVAP purge pump under GM's special coverage / warranty extension (up to 15 yr / 150,000 mi). Owners who already paid out of pocket may be eligible for reimbursement. Confirm exact eligibility and codes with a GM dealer.

    Research This Issue

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    Community Reported
    High ConfidenceVerifiedReviewed Jun 2026
    NHTSA Recalls3 recalls

    SEATS:CRITICAL FASTENERS

    General Motors LLC (GM) is recalling certain 2020 Buick Encore GX and 2021 Chevrolet Trailblazer vehicles. The rear attachment bolts of one or both front seats may not have been installed.

    Campaign #20V53700003/09/2020

    POWER TRAIN:AUTOMATIC TRANSMISSION

    General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse and GMC Terrain, 2018 Chevrolet Malibu, 2019-2020 Buick Encore, Buick Enclave, Cadillac XT4, Chevrolet Blazer and GMC Acadia, and 2020 Cadillac XT6 vehicles. The start/stop accumulator endcap may have missing bolts.

    Campaign #20V66800029/10/2020

    AIR BAGS

    General Motors LLC (GM) is recalling certain 2019 Buick Encore, Chevrolet Spark, Traverse, and Trax vehicles. The Sensing Diagnostic Module (SDM) on these vehicle may not have been turned off of "manufacturing mode," preventing the air bags from deploying in the event of a crash.

    Campaign #18V77400001/11/2018

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    Other Buick Models

    Buick Cascada22Buick Regal13Buick Enclave13Buick Envision12Buick Encore GX12Buick LaCrosse11

    Frequently Asked Questions

    What are the most common Buick Encore problems?

    According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2013-2023 Buick Encore has 25 documented issues. The most frequently reported are: 2019 Encore Air Bag Non-Deployment - SDM Not Taken Out of Manufacturing Mode, Encore 1.4L Turbo (LUJ/LUV) Timing Chain Stretch, Encore GX (2020+) Three-Cylinder Turbo Stalling and Low-Oil-Pressure ECM Recall. Of these, 13 are rated critical and should be addressed promptly.

    Is the Buick Encore reliable?

    The 2013-2023 Buick Encore has 25 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 13 issues are rated critical: 2019 Encore Air Bag Non-Deployment - SDM Not Taken Out of Manufacturing Mode and Encore 1.4L Turbo (LUJ/LUV) Timing Chain Stretch and Encore GX (2020+) Three-Cylinder Turbo Stalling and Low-Oil-Pressure ECM Recall and Encore GX Transmission Shudder, Jerking and Solenoid Faults and Engine Stalling and Sudden Power Loss While Driving (Early Models) and Turbocharger / Oil Supply Line Failure Causing Sudden Loss of Power and Transmission Fluid Leak From an Under-Bolted Start/Stop Accumulator (Recall 20V668000) and Front Seat Hook Bracket Incomplete Weld - Seat May Not Stay Anchored in a Crash (Recall 14V446) and Front Lap-Belt Pretensioner Cable Does Not Lock Retracted (Recall 14V488) and Encore GX Front Seat Rear Attachment Bolts Not Installed (Recall 20V537) and Electric Power Steering Circuit-Board Wear - Sudden Loss of Steering Assist (Recall 15V146) and Cold-Morning 'Service Power Steering' Faults and Airbag SDM Software Diagnostic-Test Fault - Frontal Airbags and Pretensioners May Not Deploy (Recalls 16V651 and 17V437) and Encore GX Electronic Brake Boost Module Sensor Contamination - Loss of Brake Assist (Recall 20V588). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

    How much does it cost to fix common Buick Encore problems?

    Repair costs for known Buick Encore issues range from $0 to $4,000, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

    What year Buick Encore is the most reliable?

    Reliability varies across model years of the Buick Encore. Based on documented issues, problems are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2013-2023 Buick Encore with 25 documented issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports.

    What is the 2019 Buick Encore 2019 Encore Air Bag Non-Deployment - SDM Not Taken Out of Manufacturing Mode?

    Certain 2019 Buick Encore crossovers are covered by GM safety recall 18V774000 (GM number 18365). On these vehicles the Sensing Diagnostic Module - the air bag control module - may still be in "manufacturing mode," the setting used during vehicle assembly, rather than the normal… Severity: high.

    What is the 2013-2022 Buick Encore Encore 1.4L Turbo (LUJ/LUV) Timing Chain Stretch?

    The 1.4L Turbo LUJ (2011-2015) and LUV (2016+) in Encore — and shared Chevy Cruze/Sonic/Trax — develops timing chain stretch typically between 80,000-130,000 miles. Cold-start rattle, then misfire codes, then risk of chain skip. Same engine family used in Opel Astra J (Astra Adam… Repairs typically run $1,200-$4,000. Severity: high.

    What is the 2020-2023 Buick Encore Encore GX (2020+) Three-Cylinder Turbo Stalling and Low-Oil-Pressure ECM Recall?

    The second-generation Encore GX uses 1.2L and 1.3L turbocharged three-cylinder engines and has drawn complaints of reduced engine power, stalling, and lurching. GM issued a recall in which the engine control module (ECM) could fail to clear the permanent status of DTC P0521 (engi… Severity: high.

    What is the 2020-2023 Buick Encore Encore GX Transmission Shudder, Jerking and Solenoid Faults?

    The Encore GX has frequent transmission complaints of shuddering, slipping, jerking, and lurching during acceleration, especially in 2021-2023 model years. Causes documented by owners and GM bulletins include defective shift solenoids producing erratic or rough shifts and failing… Repairs typically run $300-$4,000. Severity: high.

    What is the 2013-2015 Buick Encore Engine Stalling and Sudden Power Loss While Driving (Early Models)?

    The 2013-2015 Encore generated hundreds of NHTSA complaints for engine stalling and abrupt loss of power, including incidents at highway speed where the vehicle decelerated unexpectedly. Owners report rough idle, hesitation, misfires, and the "engine power reduced" message, often… Repairs typically run $300-$1,000. Severity: high.

    What is the 2013-2018 Buick Encore Turbocharger / Oil Supply Line Failure Causing Sudden Loss of Power?

    The 1.4L turbo Encore is known for turbocharger failures, often tied to the turbo oil feed/supply line, that cause a sudden loss of power while driving and a persistent check engine light. NHTSA complaints document dangerous highway events where the vehicle abruptly lost accelera… Repairs typically run $1,200-$3,000. Severity: high.

    What is the 2019-2020 Buick Encore Transmission Fluid Leak From an Under-Bolted Start/Stop Accumulator (Recall 20V668000)?

    Buick recalled 2019 and 2020 Encore models as part of a wider General Motors campaign covering vehicles built between 2018 and 2020. The problem is manufacturing hardware: the start/stop accumulator endcap may have missing bolts. If the endcap is not properly secured, transmissio… Severity: high.

    What is the 2013-2014 Buick Encore Front Seat Hook Bracket Incomplete Weld - Seat May Not Stay Anchored in a Crash (Recall 14V446)?

    On 2013-2014 Encores (124,007 GM vehicles in the campaign, including Chevrolet Trax and others) the weld on the front seat hook bracket assembly could be incomplete. Under a high-load event such as a frontal crash the front seat could break free of its lower track, greatly increa… Repairs typically run $0-$0. Severity: high.

    What is the 2013 Buick Encore Front Lap-Belt Pretensioner Cable Does Not Lock Retracted (Recall 14V488)?

    On 48,114 model-year 2013 Encores (and Chevrolet Trax) the front driver and passenger lap belt pretensioner cables might not remain locked in the retracted position when placed under load. In a crash the belt could pay out more webbing than designed, so the occupant is not adequa… Repairs typically run $0-$0. Severity: high.

    What is the 2020 Buick Encore Encore GX Front Seat Rear Attachment Bolts Not Installed (Recall 20V537)?

    Certain 2020 Encore GX crossovers left the assembly plant with one or both front seats missing their rear seat-track attachment bolts. A seat that is not fully bolted down can move or break free in a crash, and the missing bolts can also produce a seat that rocks or clunks under… Repairs typically run $0-$0. Severity: high.

    What is the 2013-2017 Buick Encore Electric Power Steering Circuit-Board Wear - Sudden Loss of Steering Assist (Recall 15V146) and Cold-Morning 'Service Power Steering' Faults?

    The Encore uses a column-mounted electric power-steering unit. On 2,295 model-year 2015 Encores built 27 Nov 2014 to 24 Feb 2015, the steering column housing could contact and wear the power-steering printed circuit board, eventually causing a sudden loss of electric assist while… Repairs typically run $0-$1,600. Severity: high.

    What is the 2014-2017 Buick Encore Airbag SDM Software Diagnostic-Test Fault - Frontal Airbags and Pretensioners May Not Deploy (Recalls 16V651 and 17V437)?

    Distinct from the 2019 'manufacturing mode' SDM recall, 2014-2017 Encores (built 9 Jul 2013 to 26 Aug 2016) were part of GM's 3.6-million-vehicle recall 16V651 (GM #16007). Under certain driving conditions the airbag sensing and diagnostic module (SDM) software could enter a diag… Repairs typically run $0-$0. Severity: high.

    What is the 2020-2021 Buick Encore Encore GX Electronic Brake Boost Module Sensor Contamination - Loss of Brake Assist (Recall 20V588)?

    The 2020-2021 Encore GX uses an electronic brake booster instead of a vacuum booster. A contaminant introduced by the material supplier into a sensor connection inside the brake boost module can interrupt communication between the sensor and the boost system. When that happens th… Repairs typically run $0-$0. Severity: high.

    What is the 2013-2022 Buick Encore 1.4L Turbo Intake Manifold PCV Check Valve Failure - P1101/P0171 Lean Codes and Repeat Valve-Cover Failures?

    This is the upstream half of the 1.4L PCV story and is often missed. The intake manifold on the LUV/LUJ 1.4T contains a small, non-serviceable orange one-way check valve in the PCV port. Under boost that valve is meant to block pressure from reaching the crankcase; when it fails… Repairs typically run $150-$900. Severity: medium.

    What is the 2013-2018 Buick Encore AWD Rear Differential Clutch Control Module (RDCM) Corrosion - Loss of AWD, Dead Battery and Power-Steering Loss (Special Coverage 17436-02)?

    On 2013-2018 Encore AWD models the rear differential clutch control module (RDCM) sits low at the rear axle where road splash reaches it over time. Water enters the module and corrodes its circuit board. The most common result is loss of all-wheel-drive engagement with a 'Service… Repairs typically run $500-$1,100. Severity: medium.

    What is the 2013-2018 Buick Encore 6T40 Automatic Transmission Hard Shifting, Shudder and Slipping?

    First-generation Encores with the 6T40/6T45 6-speed automatic are reported to develop harsh or delayed shifts, slipping, and a shudder or surge particularly around the 2nd/6th gear range. A common cause is debris blocking the oil passage that feeds the 2-6 clutch regulator valve,… Repairs typically run $200-$2,500. Severity: medium.

    What is the 2013-2021 Buick Encore Excessive Oil Consumption (1.4L Turbo)?

    Many owners of the 1.4L turbo Encore report the engine consuming oil at an elevated rate between changes, often without an obvious external leak. Low oil levels left unchecked can starve the turbocharger and accelerate engine wear. Consumption is frequently linked to PCV system f… Severity: medium.

    What is the 2013-2021 Buick Encore PCV / Camshaft Cover Diaphragm Failure (1.4L Turbo) - "Tea Kettle" Whistle?

    The 1.4L turbocharged engine (LUV/LUJ family) used in the first-generation Encore is prone to a ruptured PCV pressure-regulator diaphragm built into the plastic camshaft (valve) cover. When the diaphragm cracks, unmetered air enters the intake, producing a loud high-pitched whist… Repairs typically run $150-$600. Severity: medium.

    What is the 2013-2019 Buick Encore AWD Rear Differential Housing Corrosion - Cracked Aluminum Case, Gear-Oil Leak and Bearing Failure?

    Separate from the electronic module problem, the rear differential/clutch-coupling assembly on 2013-2019 Encore AWD models (shared with the Chevrolet Trax and Opel Mokka) suffers severe exterior corrosion of its aluminum housing in salt-belt states. The corrosion eats through the… Repairs typically run $800-$3,000. Severity: medium.

    What is the 2013 Buick Encore Ignition Key Removable With Transmission Not in Park - Rollaway Risk (Recall 16V502)?

    On 8,367 model-year 2013 Encores the electronic park lock lever in the ignition lock housing could allow the key to be removed while the transmission was not in Park. With the key out and the shifter in a drive or neutral position the vehicle could roll away after the driver walk… Repairs typically run $0-$0. Severity: medium.

    Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

    Data compiled from NHTSA recalls, manufacturer TSBs, automotive forums, and AI-assisted research. No aggregated owner-report counts available for this vehicle yet.