2000-2020 model years · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026
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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2000-2020 Chevrolet Impala has 17 documented known issues, with 9 rated critical. The most serious are Reduced Engine Power / Service StabiliTrak from Throttle Body Failure ($100-$450 repair), Leaking Fuel Pressure Regulator on 3800 V6 (L36) — Recall 04V090000, Passlock Security System No-Start Condition ($150-$600 repair), Key Ring / Key Head Ignition Recall 14V355000 (2006-2014 Impala), Front Valve Cover Gasket Leak — Oil on Exhaust Manifold Fire Recall (15V201000), Intake Manifold Gasket Leak (3.4L/3.8L V6) ($300-$1,000 repair), Front Valve Cover Oil Leak Fire Hazard — 3.8L V6 Impala (Recall 09V116000), 4T65-E Transmission Failure and Hard Shifts ($200-$3,500 repair) and Ignition Switch Failure and Recall (NHTSA 14V-394) ($0-$0 repair). Across all issues with published estimates, repair costs range from $30 to $3,500. DIY maintenance guides at au7o.io.
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER
General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Equinox, Impala, Cruze, Volt and Bolt EV vehicles, GMC Terrain vehicles, Buick Lacrosse and Regal vehicles, Cadillac XTS and XTS Professional vehicles and 2018 Chevrolet Malibu vehicles. The rear brake caliper pistons may have an insufficient coating causing gas pockets to form, potentially reducing rear brake performance.
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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2000-2020 Chevrolet Impala has 17 documented issues. The most frequently reported are: Reduced Engine Power / Service StabiliTrak from Throttle Body Failure, Leaking Fuel Pressure Regulator on 3800 V6 (L36) — Recall 04V090000, Passlock Security System No-Start Condition. Of these, 9 are rated critical and should be addressed promptly.
The 2000-2020 Chevrolet Impala has 17 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 9 issues are rated critical: Reduced Engine Power / Service StabiliTrak from Throttle Body Failure and Leaking Fuel Pressure Regulator on 3800 V6 (L36) — Recall 04V090000 and Passlock Security System No-Start Condition and Key Ring / Key Head Ignition Recall 14V355000 (2006-2014 Impala) and Front Valve Cover Gasket Leak — Oil on Exhaust Manifold Fire Recall (15V201000) and Intake Manifold Gasket Leak (3.4L/3.8L V6) and Front Valve Cover Oil Leak Fire Hazard — 3.8L V6 Impala (Recall 09V116000) and 4T65-E Transmission Failure and Hard Shifts and Ignition Switch Failure and Recall (NHTSA 14V-394). 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.
Repair costs for known Chevrolet Impala issues range from $0 to $3,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Reduced Engine Power / Service StabiliTrak from Throttle Body Failure, typically costs $100-$450 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
Reliability varies across model years of the Chevrolet Impala. 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 2000-2020 Chevrolet Impala with 17 documented issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports.
Impalas frequently throw a cluster of warnings at once — 'Engine Power Reduced,' 'Service StabiliTrak,' and 'Service Traction Control' — that are usually one underlying drive-by-wire fault rather than three separate failures. The most common root cause is the electronic throttle… Repairs typically run $100-$450. Severity: high.
NHTSA lists the 2000 Impala in this recall when it left the factory with the 3800 V6 (L36) and one of the suspect Delphi fuel pressure regulators. Those regulators leak far more often than they should. On the Impala the leaked fuel does not simply drip away — it is drawn into the… Severity: high.
The Passlock anti-theft system causes intermittent no-start conditions where the security light flashes and the fuel pump is disabled. The ignition lock cylinder contains a Hall-effect sensor that reads a resistance value; when contacts wear or corrode, the BCM detects a mismatch… Repairs typically run $150-$600. Severity: high.
The Impala has the widest year span of any vehicle in GM recall 14V355000 - 2006 through 2014. The problem is not the key turning itself off on its own; it is the load hanging from it. NHTSA's record states that the weight on the key ring, combined with road conditions or some ot… Severity: high.
General Motors recalled 2004 Chevrolet Impalas manufactured April 8, 2003 through June 23, 2003 because the valve cover gasket may leak. Leaking engine oil can reach the hot surface of the exhaust manifold, and GM's stated consequence is an increased risk of fire — which is why t… Severity: high.
The 3.4L and 3.8L V6 engines in 2000-2005 Impalas use Dex-Cool compatible intake manifold gaskets that deteriorate over time, causing coolant to leak externally or internally into the oil. External leaks appear as dried orange coolant trails on the engine block. Internal leaks co… Repairs typically run $300-$1,000. Severity: high.
GM recall 09V116000 covers 2000-2003 Chevrolet Impalas built with the 3.8L naturally aspirated V6. The problem is not the oil leak itself but where the oil ends up: under hard braking, drops of engine oil can be deposited on the exhaust manifold. If the manifold is hot enough and… Severity: high.
The 4T65-E automatic transmission used in the 2000-2013 Impala is one of the most failure-prone GM transmissions. Common failures include the 1-2 accumulator piston cracking (causing harsh 1-2 shift), pressure control solenoid failure (erratic shifts and slipping), and the forwar… Repairs typically run $200-$3,500. Severity: high.
The 2003-2006 Impala was included in the massive GM ignition switch recall affecting millions of vehicles. The ignition switch has a weak detent spring that allows the key to slip from the "Run" position to the "Accessory" or "Off" position while driving. When this happens, the e… Repairs typically run $0-$0. Severity: high.
The in-tank fuel level sensor (part of the sending unit on the fuel pump module) is a common failure on the Impala. The sensor's small metal contact 'teeth' wear against the resistor card as the float arm moves, and the arm itself can stick or bind. The result is a gauge that rea… Repairs typically run $150-$500. Severity: medium.
The 2006-2013 Impala is notorious for internal breaks in the front ABS wheel-speed-sensor wiring harness. The factory routes and clamps the harness such that steering movement repeatedly flexes the wire; the copper conductors fracture inside the insulation while the outer jacket… Repairs typically run $90-$350. Severity: medium.
The 3.5L and 3.9L 'high value' V6s develop two common coolant leaks. First, the water pump leaks from its weep hole as the internal seal wears — often visible as coolant sprayed across the serpentine belt and accessories. Second, the cast-aluminum coolant crossover pipe on the ri… Repairs typically run $250-$900. Severity: medium.
The 2014-2020 Impala uses an electric power steering system with a motor mounted on the steering column. The motor can fail, causing loss of power steering assist (steering becomes very heavy). The steering control module can also lose communication, triggering warnings. GM issue… Repairs typically run $600-$1,500. Severity: medium.
These Impala gauge clusters use small stepper motors to drive each needle, and GM's era-wide stepper-motor defect makes them fail prematurely. Typically one gauge sticks or reads wildly wrong first (speedometer stuck at 60 while parked, fuel pegged on full, temperature slammed to… Repairs typically run $100-$500. Severity: medium.
The intermediate steering shaft on the 2006-2020 Impala develops a clunk or pop felt through the steering wheel when turning, especially at low speeds and when going over bumps. The intermediate shaft connects the steering column to the steering gear and uses a slip joint that lo… Repairs typically run $30-$500. Severity: low.
The power window regulators in the 2006-2020 Impala fail frequently, causing windows to fall into the door, move slowly, or stop working entirely. The cable-style regulator uses thin steel cables that fray and break, or the motor gears strip. The driver window is the most commonl… Repairs typically run $100-$400. Severity: low.
A repetitive clicking or knocking sound from behind the dash — often constant, sometimes only when the car is running or turned off — is a classic Impala blend door actuator failure. The plastic gears inside the small actuator motor strip out, so the actuator can no longer positi… Repairs typically run $100-$400. Severity: low.
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.
