Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2014 Chevrolet Impala owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2014 Chevrolet Impala. The contact stated while driving at an undisclosed speed, the contact became aware of an abnormal ticking sound coming from the vehicle. The vehicle was taken to the dealer where it was diagnosed with a failed actuator. The contact was informed that the actuator needed to be replaced. The vehicle was being repaired. The contact stated that a total of eleven actuators had been replaced in the vehicle since 2018. The manufacturer was not made aware of the failure. The failure mileage was approximately 122,000.
Fourth time I had submitted this text so this one will be vague. I've had to Repair my stuts and shocks and brakes to my vehicle due to ongoing issues with tires while divingand hitting small speesbumps and potholes. I did replace low performance tires and still was an issue with my struts and shocks when I drive causing me to hit a bump or a small hole and diverts me to the next lane of ongoing traffic also I had to my battery replaced twice. To find out that it was only due to corrosion and the battery cables slipping was frustrating cause I did replace the battery and key fob battery already. Car wouldn't start and when it did it took forever hours to restart and engine still seems to get bogged down In ongoing traffic. Which was the prior issue no power no matter how hard i press the gas. …
I have push to start car. On my lunch i starting my car and I immediately notice the rpm went to 2500, which is high and it went up to 3000 and then the warning light flashed stability track error and check engine and swerving light I took a pic. I turn car off and wait a few min turned car back on and it was fine. No errors drove to get lunch and back no issues. Then on leaving work s ame thing happened but the error didn't go away. I was able to shift out of gear. Hard knocking, gear shifter light all white no clue what gear it was in I moved to another parking spot but was slow moving very delayed. Parked and now waiting for tow truck
The 2014 Chevy Impala is dangerous. When the rocker arm control valve and related parts fail or the camshaft solenoids and sensors fail the car will drive rough and eventually just cut off in the middle of traffic highway or residential. This is what it did on me, putting me in a very dangerous position. The economic loss is still devastating financially as all 2.5 and 3.6 engines arent covered by GM special warranty but they should be all covered. My VIN number was not included when it should be.
When pulling up to a stoplight the car would often downshift, surge with power, and nearly overpower the brakes. The car started losing oil from its rear main seal. When I finally had the seal replaced the repair shop found that pieces of the thrust bearing were laying in the oil pan. The engine and transmission had to be removed from the vehicle in order to replace the thrust bearing. They showed me a box full of parts, but I did not keep any.
Had a new catalyst converter installed new up steam down steam 02 sensor and it say Catalytic converter system is below threshold bank one had numerous parts put on and the engine light won't stay off I don't have a lot of money to keep fixing it the light goe out for a couple days come back on
I have a 2014 Impala limited I started having problems within 6 months after I bought the vehicle from Bergstrom Chevrolet in Wisconsin it was involving the ABS anti-lock stability track and traction control and the braking and steering we're all feeling and locking up while I was driving it presented and problems and endangering my life and the life of any passengers in the vehicle the brakes will lock up and there was no warning before I locked up no lights came on and it would pull to the left or pull to the right depending on which ABS was locking up and it was fixed one time at the dealership then it was fixed again at the dealership later maybe about another 3 to 6 months after and went up for the same thing again and the parts were replaced now I again have had nothing but problems with the braking system. …
Tl* the contact owned a 2014 Chevrolet Impala. While the vehicle was parked and turned off, an explosion occurred and flames appeared from the engine compartment. The fire department was called to the scene and extinguished the flames. The vehicle was destroyed. The cause of the failure was not determined. The manufacturer and faulkner Chevrolet (298 stoke park rd, bethlehem, pa) were notified of the failure. The failure mileage was 118,000.
I recently purchased this car used at a dealership. Before taking possession of the vehicle, the dealership tried to fix all problems associated with the check engine light being on. I was informed the vehicle will not pass inspection and the check engine light was still on due to a rocker arm oil control valve needing to be replaced. The car is still at the dealership waiting for a part that's on backorder and the part needed is GM #12633613 rocker arm oil control valve. After doing some research myself, I discovered this part fails commonly on my vehicle make, model, and year as well as 2014-2015 Chevy malibus produced with the same engine. GM nor any aftermarket companies have this part in stock. I've contacted GM and was only told they don't know when they will have this part available. However, a few others with the same issue have been told by GM that this part is discontinued. …
I was driving to my sister's house on sept. 27 2020. When my car started making a loud noise from the engine and I noticed the engine light came on. I pulled over called my husband, when he got there he opened the hood and noticed the catalytic converter broke completely off my engine. We managed to get to a friends down the road for the night until we able to get it towed to the dealer's the next day. When I called the and told them what happened they told it was my fault that I must of hit something to make fall off. I do not have any other underneath my car, I tried to tell them this was a safety issue and that I could have possibly burned to death in my own car if I hadn't of pulled over upon hearing...thankfully I was in an area where I could pull over. I did call GM also they to said it was my fault and or weather conditions. …
Engine complaints in other Impala years
Frequently asked questions
How common are engine problems on the 2014 Chevrolet Impala?
NHTSA has 58 complaints about the engine & cooling of the 2014 Chevrolet Impala, 9% of the model year's 637 complaints. The component named most often is exhaust system › emission control › catalytic convertor (1 mentions).
Is there a recall for 2014 Chevrolet Impala engine problems?
No. NHTSA lists no engine & cooling recall for the 2014 Chevrolet Impala, though it has 12 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2014 Chevrolet Impala engine problems start?
Half of the complaints with a recorded mileage happened before about 58,000 miles, and 21% before 25,000 miles.
Is it dangerous?
Owners linked 2 crashes, 3 fires and 1 injury to engine & cooling problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.