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GMC · Known Issues

2007 GMC Acadia Problems: 8 Known Issues

2007 model year · 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 2007 GMC Acadia has 8 documented known issues, with 6 rated critical. The most serious are Electric Power Steering (EPAS) Failure and Loss of Assist, 3.6L V6 Internal Water Pump Failure and Coolant Leak, Heated Wiper Washer Fluid System Fire Recall (08V441) — 2007-2008 Acadia, Heated Washer Module Fire Risk — Module Removed Under Recall 10V240000, 3.6L V6 Timing Chain Stretch and Premature Failure and 6T70/6T75 3-5-Reverse Wave Plate Fracture — Loss of 3rd, 5th and Reverse ($1,800-$4,500 repair). Across all issues with published estimates, repair costs range from $120 to $4,500. DIY maintenance guides at au7o.io.

In This Article

  • Acadia Engine2
  • Acadia Electrical2
  • Acadia Suspension2
  • Acadia Transmission1
  • Acadia HVAC1
  • Recalls14
  • FAQ
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In This Article

  • Engine2
  • Electrical2
  • Suspension2
  • Transmission1
  • HVAC1
  • Recalls14
  • FAQ

All 8 Known Issues

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On the 2007-2023 GMC Acadia, gM customer-satisfaction bulletin 13079 covers certain 2009-2013 GMC Acadia vehicles with 3.6L High Feature V6 engines (RPO LY7 or LLT) that may experience leakage from the water-pump shaft seal, often after operation with low coolant.

This issue also affects: Cadillac XT5, Cadillac XT6, Chevrolet Camaro

Common Symptoms

  • Coolant leak from the water-pump shaft seal

How to Fix

Check the VIN and current eligibility with GMC. Bulletin 13079 directs dealers to verify and correct coolant level with the proper DEX-COOL mixture; it does not establish the frozen claim that the pump is internal or must be combined with timing-chain work.

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On the 2007-2016 GMC Acadia, gM bulletin 12-06-01-009D covers 2007-2012 GMC Acadia vehicles with 3.6L High Feature V6 engines (RPO LY7 or LLT) and timing-chain correlation DTCs P0008, P0009, P0016, P0017, P0018 or P0019.

This issue also affects: Buick Cascada, Buick Enclave, Buick Encore

Common Symptoms

  • Check-engine light
  • Camshaft-to-crankshaft correlation DTC

How to Fix

Complete the GM diagnostic procedure before ordering parts. When a stretched timing chain is confirmed, use the applicable GM timing-chain kit. The bulletin says guides, sprockets, actuators and the crank gear should not be replaced automatically unless separately worn or diagnosed.

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On the 2007-2008 GMC Acadia, first-generation Acadias from 2007 and 2008 that were optioned with the heated wiper washer fluid system are covered by NHTSA recall 08V441000. The heater unit's printed circuit board can short circuit and overheat the control-circuit ground wire. What an owner may experience, per GM, is other electrical features misbehaving, an odor, or smoke — the reason the agency classes this as a fire risk. The 857,735 vehicles listed for this recall are the total for the whole GM campaign, which included several brands.

Common Symptoms

  • Electrical features malfunctioning
  • Odor
  • Smoke

How to Fix

The fix costs nothing at a GMC dealer: installation of a wire harness with an in-line fuse in the affected circuit. GM began the recall on September 12, 2008. Acadias of this vintage have often changed owners more than once, so look up your VIN at nhtsa.gov/recalls to see whether the remedy is still listed as open before ruling it out.

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On the 2007-2009 GMC Acadia, gMC Acadias from 2007 through 2009 that were equipped with the heated washer fluid system (HWFS) are covered by NHTSA recall 10V240000. What makes this one notable is that it is a second bite at the same defect: GM recalled these vehicles in 2008 to add a fuse to the heated washer module's control circuit harness, intended to contain a printed circuit board electrical short, and thermal incidents were still reported on modules that had received the improvement. NHTSA's consequence language is unambiguous — the heated washer module may ignite and a fire may occur.

Common Symptoms

  • Burning smell or smoke from the engine compartment
  • Fire at the heated washer fluid module

How to Fix

Correction is free at a GMC dealer. Instead of another electrical repair, the dealer permanently disables and removes the heated washer fluid module from the Acadia, and provides an updated owner manual page for insertion documenting that the feature has been permanently disabled and removed. The campaign opened June 11, 2010. If the vehicle's records only show the 2008 fuse work, this remedy is still outstanding. Check the VIN at nhtsa.gov/recalls or contact GMC at 1-866-996-9463.

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On the 2007-2016 GMC Acadia, gM special-coverage bulletin 10248773 covers specified 2007-2011 GMC Acadia vehicles with power-steering pump wear that can intermittently reduce hydraulic pressure and steering assist. Manual steering remains available but requires greater effort, especially at low speeds.

This issue also affects: Cadillac XT5, Chevrolet Colorado, Chevrolet Traverse

Common Symptoms

  • Intermittent reduced or lost steering assist
  • Increased steering effort at low speed

How to Fix

Have a GMC dealer check eligibility for the special coverage and diagnose the hydraulic steering system. The GM procedure flushes the system, replaces the power-steering pump and installs the updated steering-gear valve housing when required.

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On the 2007-2018 GMC Acadia, the Lambda-platform hub bearing assemblies wear early — owners report failures well under 60,000 miles and, on the rear, repeat failures on the same vehicle. Two distinct symptoms come from one part: mechanical noise (a speed-dependent hum or growl that changes when the vehicle is loaded in a turn) and an ABS fault, because the encoder/tone ring on GM Lambda hubs is magnetically printed onto the bearing's inner race surface. When that magnetic layer degrades or sloughs off, the ABS module gets an implausible wheel speed signal and posts a wheel speed sensor code even though the sensor itself is fine — which is why replacing the sensor does not fix it.

This issue also affects: Chevrolet Avalanche, GMC Sierra 1500, GMC Yukon XL

Common Symptoms

  • Humming or growling that rises with vehicle speed
  • Noise changes when swerving left/right
  • ABS and traction control warning lights
  • Speedometer drop-out or erratic reading
  • Play at the wheel when rocked at 12 and 6 o'clock

How to Fix

Diagnose by wheel with a chassis ear or stethoscope at each hub with the vehicle raised and unloaded, and confirm with a scan-tool comparison of the four wheel-speed signals at low speed — a hub with a damaged tone ring drops out or reads erratically while the others track. Replace the complete hub/bearing assembly (the bearing is not serviceable separately). Expect the axle shaft splines to be seized in the hub: plan on pressing them apart. Note that some aftermarket hubs ship without the ABS sensor, so buy the correct part number for your ABS configuration and torque the axle nut to spec.

Typical repair cost:$250 - $800

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On the 2007-2012 GMC Acadia, the 35R clutch wave plate inside the 6T70/6T75 six-speed transaxle cracks and fractures, allowing the 35R clutch piston to overstroke and leak apply pressure. The result is a hard flare or slip in 3rd and 5th gear and eventually a complete loss of reverse. Failures typically begin after about 25,000 miles and are extremely common on the early Lambda Acadia; GM eventually extended coverage on the wave plate to 10 years/120,000 miles. Debris from the broken plate circulates through the transmission, so a simple plate swap is often not enough on high-mileage units.

This issue also affects: Buick Enclave, Buick Encore GX, Buick Regal

Common Symptoms

  • No reverse gear
  • Slip or flare shifting into 3rd gear
  • Harsh or delayed 3-5 shifts
  • Check engine / SES light on
  • RPM flares under acceleration then catches

How to Fix

Transmission must come apart. The correct repair is replacement of the 35R clutch wave plate with the redesigned/updated part plus new 35R clutch pack and seals, a thorough flush of the cooler and valve body, and a fluid/filter change. On units run for a long time after failure, a full rebuild or remanufactured transaxle is the realistic fix. Check eligibility under the extended special coverage before paying out of pocket.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Sonnax 3-5-Reverse Drum Saver Kit (upgraded wave plate + cupped steel)
    Cross-refSonnax 124555K$55–$120

    Fits Gen.1 and Gen.2 6T70/6T75 — the 2007-2012 Ac

    Sonnax

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Typical repair cost:$1,800 - $4,500

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On the 2007-2021 GMC Acadia, the dual-zone HVAC case uses several small plastic-geared blend/mode door actuators. The gear teeth strip or the door binds, so the actuator hunts for its calibration position and produces a repetitive clicking or ticking from behind the dash or glovebox. The classic complaint is full heat on the driver's side and ice-cold air on the passenger's side (or the reverse), often with the click audible whenever the temperature setting is changed or the ignition is cycled. It is one of the most common non-powertrain complaints on the Acadia across both generations because every part of the actuator drivetrain is plastic.

This issue also affects: Chevrolet Equinox, Chevrolet Malibu, GMC Sierra 1500

Common Symptoms

  • Repetitive clicking or ticking behind dash or glovebox
  • Heat on one side, cold air on the other
  • Temperature does not change when adjusted
  • Air comes from wrong vents
  • Clicking stops when HVAC is off

How to Fix

Identify the failed actuator by moving the temperature setpoint and feeling/listening at each actuator — the failed one clicks while the good one is smooth. The passenger blend actuator is reachable from behind the glovebox and is held by three T20 Torx screws; some mode actuators require dropping more of the lower dash. Replace the actuator, then start the vehicle and let the HVAC control module run its self-calibration for roughly 40 seconds without touching the controls. Inspect the blend door shaft for binding or a broken door before installing a new actuator, or the new one will strip too.

Typical repair cost:$120 - $450

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NHTSA Recalls14 recalls

EQUIPMENT:OTHER:LABELS

General Motors, LLC (GM) is recalling certain 2023 Cadillac XT5, XT6, and GMC Acadia vehicles. The certification label located on the driver's side B-pillar contains tire size information that may be illegible. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 110, "Tire Selection and Rims."

Campaign #22V70800022/09/2022

POWER TRAIN:DRIVELINE:DRIVESHAFT

General Motors, LLC (GM) is recalling certain 2023 Cadillac XT5 and GMC Acadia vehicles. The right-front half-shaft assemblies may be improperly connected to the transmission, causing them to separate.

Campaign #23V04300002/02/2023

POWER TRAIN:AUTOMATIC TRANSMISSION

General Motors, LLC (GM) is recalling certain 2023 Cadillac XT6, GMC Acadia, Chevrolet Blazer, Traverse, and 2022-2023 Cadillac XT5 vehicles. The transmission may have been built with an incorrect sun gear, which can result in the driver-side half-shaft disengaging from the transmission.

Campaign #23V172000
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Other GMC Models

GMC Sierra 150035GMC Terrain26GMC Yukon XL24GMC Sierra 3500HD24GMC Yukon21GMC Canyon18

Frequently Asked Questions

What are the most common GMC Acadia problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2007 GMC Acadia has 8 documented issues. The most frequently reported are: Electric Power Steering (EPAS) Failure and Loss of Assist, 3.6L V6 Internal Water Pump Failure and Coolant Leak, Heated Wiper Washer Fluid System Fire Recall (08V441) — 2007-2008 Acadia. Of these, 6 are rated critical and should be addressed promptly.

Is the GMC Acadia reliable?

The 2007 GMC Acadia has 8 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 6 issues are rated critical: Electric Power Steering (EPAS) Failure and Loss of Assist and 3.6L V6 Internal Water Pump Failure and Coolant Leak and Heated Wiper Washer Fluid System Fire Recall (08V441) — 2007-2008 Acadia and Heated Washer Module Fire Risk — Module Removed Under Recall 10V240000 and 3.6L V6 Timing Chain Stretch and Premature Failure and 6T70/6T75 3-5-Reverse Wave Plate Fracture — Loss of 3rd, 5th and Reverse. 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 GMC Acadia problems?

Repair costs for known GMC Acadia issues range from $120 to $4,500, 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 is the 2007-2016 GMC Acadia Electric Power Steering (EPAS) Failure and Loss of Assist?

GM special-coverage bulletin 10248773 covers specified 2007-2011 GMC Acadia vehicles with power-steering pump wear that can intermittently reduce hydraulic pressure and steering assist. Manual steering remains available but requires greater effort, especially at low speeds. Severity: high.

What is the 2007-2023 GMC Acadia 3.6L V6 Internal Water Pump Failure and Coolant Leak?

GM customer-satisfaction bulletin 13079 covers certain 2009-2013 GMC Acadia vehicles with 3.6L High Feature V6 engines (RPO LY7 or LLT) that may experience leakage from the water-pump shaft seal, often after operation with low coolant. Severity: high.

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.

16/03/2023

VISIBILITY:WINDSHIELD

General Motors, LLC (GM) is recalling certain 2023 GMC Acadia and 2024 Cadilac XT5 and XT6 vehicles. The windshield may have been assembled without the proper urethane sealant required to bond the windshield to the vehicle body.

Campaign #23V68100012/10/2023

AIR BAGS

General Motors, LLC. (GM) is recalling certain 2022 GMC Acadia vehicles. The sensing diagnostic module (SDM) may have been left in "manufacturing mode" and not activated at the assembly plant prior to shipment. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."

Campaign #21V70200010/09/2021

+ 9 more recalls. Check all on NHTSA.gov

Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.

What is the 2007-2008 GMC Acadia Heated Wiper Washer Fluid System Fire Recall (08V441) — 2007-2008 Acadia?

First-generation Acadias from 2007 and 2008 that were optioned with the heated wiper washer fluid system are covered by NHTSA recall 08V441000. The heater unit's printed circuit board can short circuit and overheat the control-circuit ground wire. What an owner may experience, pe… Severity: high.

What is the 2007-2009 GMC Acadia Heated Washer Module Fire Risk — Module Removed Under Recall 10V240000?

GMC Acadias from 2007 through 2009 that were equipped with the heated washer fluid system (HWFS) are covered by NHTSA recall 10V240000. What makes this one notable is that it is a second bite at the same defect: GM recalled these vehicles in 2008 to add a fuse to the heated washe… Severity: high.

What is the 2007-2016 GMC Acadia 3.6L V6 Timing Chain Stretch and Premature Failure?

GM bulletin 12-06-01-009D covers 2007-2012 GMC Acadia vehicles with 3.6L High Feature V6 engines (RPO LY7 or LLT) and timing-chain correlation DTCs P0008, P0009, P0016, P0017, P0018 or P0019. Severity: high.

What is the 2007-2012 GMC Acadia 6T70/6T75 3-5-Reverse Wave Plate Fracture — Loss of 3rd, 5th and Reverse?

The 35R clutch wave plate inside the 6T70/6T75 six-speed transaxle cracks and fractures, allowing the 35R clutch piston to overstroke and leak apply pressure. The result is a hard flare or slip in 3rd and 5th gear and eventually a complete loss of reverse. Failures typically begi… Repairs typically run $1,800-$4,500. Severity: high.

What is the 2007-2018 GMC Acadia Front and Rear Wheel Hub Bearing Assembly Failure With Integrated ABS Tone Ring Degradation?

The Lambda-platform hub bearing assemblies wear early — owners report failures well under 60,000 miles and, on the rear, repeat failures on the same vehicle. Two distinct symptoms come from one part: mechanical noise (a speed-dependent hum or growl that changes when the vehicle i… Repairs typically run $250-$800. Severity: medium.

What is the 2007-2021 GMC Acadia HVAC Blend Door Actuator Gear Stripping — Clicking Dash and Cold Air on One Side Only?

The dual-zone HVAC case uses several small plastic-geared blend/mode door actuators. The gear teeth strip or the door binds, so the actuator hunts for its calibration position and produces a repetitive clicking or ticking from behind the dash or glovebox. The classic complaint is… Repairs typically run $120-$450. Severity: low.