Chevrolet Impala Check Engine Light: What Owners Report
640 of the 5,161 owner complaints NHTSA has for 2008–2024 Impala models describe a check engine or warning light. Here is which years and systems show up most, what owners say, what to check first, and when a mobile mechanic can fix it where the car sits.
NHTSA data pulled September 2026.
A flashing check engine light usually means a severe misfire that can overheat the catalytic converter. Slow down, avoid hard acceleration and get it checked as soon as you can.
Which Impala years report it most
Reports peak with the 2016 model year (185). A year with more cars on the road usually has more reports, so use this to know what to ask, not to rank years.
What else these reports mention
Owners filing these complaints most often also named the engine and throttle and cruise control – usually where a mechanic starts looking.
| System named | Reports | Mobile mechanic? |
|---|---|---|
| Engine | 343 | Diagnose first |
| Throttle and cruise control | 188 | Diagnose first |
| Stability control | 186 | Diagnose first |
| Electrical system | 140 | Often in the driveway |
| Transmission and drivetrain | 112 | Usually a shop |
| Fuel system | 59 | Diagnose first |
What Impala owners describe
“Engine warning light goes off and on every 3 to 4 days after being cleared, then will get a reduced engine power message will appear.”
Related Chevrolet Impala recalls
4 of the 18 recalls for these years mention a related system or symptom. Check your VIN – if one is open, the fix is free at a dealer.
| Reported | Campaign | Model years | System | What can happen |
|---|---|---|---|---|
| 2014-10 | 14V614000 | 2014 | Electrical system | If the module experiences an electrical short, the vehicle could stall, increasing the risk of a crash. |
| 2014-07 | 14V450000 | 2014 | Steering | If power steering assist is lost, greater driver effort would be required to steer the vehicle at low speeds, increasing the risk of a crash. |
| 2014-02 | 14V092000 | 2014 | Transmission and drivetrain | If a vehicle's shift cable disengages from the transmission shift lever, a driver may be unable to shift gear positions and the indicated shift position may not represent the gear position the vehicle is in. |
| 2011-08 | 11V398000 | 2012 | Steering | Power steering fluid could flow onto the catalytic converter, and an engine compartment fire could occur. |
Safety recall repairs are done free by the brand's dealers. A mobile mechanic cannot do recall work. Enter your 17-character VIN at nhtsa.gov/recalls to see open recalls on your exact car. "Park it" means NHTSA and the maker say not to drive the vehicle until it is fixed.
What to check first
- Note whether the light is solid or flashing, and whether the car drives differently.
- Check that the fuel cap is tight – a loose cap can set an evaporative-system code on many cars.
- Look at the other gauges: temperature, oil pressure and battery warnings change how urgent it is.
- Have the code read – a mobile mechanic reads it with an OBD-II scanner and checks the cause, not just the code.
Full guide: Check engine light: solid vs flashing
Can a mobile mechanic fix it?
Yes for the diagnosis, and often for the repair. Reading codes, checking live data and fixing sensors, ignition coils, spark plugs and vacuum leaks are normal mobile jobs. Internal engine or transmission faults need a shop.
| Job | Repair shop average | Mobile mechanics we list | Note |
|---|---|---|---|
| Diagnostic | $125–183 | $85–130 | Usually credited toward the repair |
| Spark plugs / tune-up | $288–399 | $115–195 |
Repair shop average: RepairPal national estimates, parts and labor before tax (updated Sep 3, 2026); pads and rotors from Kelley Blue Book (Jun 2026). Mobile: the middle half of prices that 90 mechanics listed on MobileMechanics.ai publish on their own websites (checked Oct 2026); some are labor only, so ask whether parts are included. Prices vary by vehicle and city; the mechanic quotes after looking. How we got these numbers
Other Chevrolet Impala problems
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Chevrolet Impala check engine light: questions
What causes check engine light on a Chevrolet Impala?
In 640 owner complaints to NHTSA that describe it, the systems named most often are the engine, throttle and cruise control, stability control. Only a mechanic who tests your car can say which applies to yours.
Is there a Chevrolet Impala recall for this problem?
4 recalls for these model years mention a related system. Enter your VIN at nhtsa.gov/recalls – open recall repairs are free at a dealer.
Can a mobile mechanic fix it?
Yes for the diagnosis, and often for the repair. Reading codes, checking live data and fixing sensors, ignition coils, spark plugs and vacuum leaks are normal mobile jobs. Internal engine or transmission faults need a shop.
How much does it cost to fix?
It depends on the cause. diagnostic runs $85–130; spark plugs / tune-up runs $115–195, based on prices that mechanics we list publish on their own websites (October 2026). Ask for the price in writing first.
Where this data comes from
- NHTSA – vehicle safety complaints (public complaint database)
- NHTSA – recalls lookup by VIN
- NHTSA – Product Information Catalog and Vehicle Listing (vPIC)
Complaint and recall records for Chevrolet Impala model years in range, retrieved September 2026. Owner quotes are short excerpts from public NHTSA complaint records, lightly cased for reading.