2010 Chevrolet Impala Engine Problems

Which parts fail

• Exhaust system › Emission control
  1

Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).

Mileage when the problem started

• Under 25k
  23%
• 25k–50k
  1317%
• 50k–75k
  1924%
• 75k–100k
  2329%
• 100k–150k
  1215%
• 150k+
  912%

Owner reports

Selected complaints filed with NHTSA by 2010 Chevrolet Impala owners, lightly cleaned up (personal details are redacted by NHTSA).

The contact owns a 2010 Chevrolet Impala. The contact stated that while driving at various speeds, the front-end of the vehicle would lower and the front end was unstable. In addition, the check engine warning light would remain illuminated. The vehicle was also consuming an excessive amount of engine oil. The engine fan had failed and the transmission was faulty. No further information was available. The cause of the failure was not yet determined. The local dealer and manufacturer were not notified of the failure. The failure mileage was 120,000.

The car can have moments of power loss where the speedometer suddenly, erratically spikes while the tachometer slightly lags. It almost stalled my vehicle while transmission was in drive while stopped. It feels like dragging when the power loss occurs. This has occurred randomly for the past month, mostly during interstate driving with cruise control operating. It has happened the last six times I have driven, but the previous several times it did not occur. It also occurred in a similar random fashion for the prior two weeks. When it does occur it feels like power drain and deceleration that can last a second and this will occur several times during a twenty minute drive at 70mph. Mechanics at two shops seem confused and don't know where to begin except for a transmission fluid flush. That was completed and the problem has persisted. There are no related error codes. …

I started my vehicle in the morning to let it warm up. I come back out to get myself and my son in the vehicle to go to work and take him to school. My dash upon entry had a check engine light on, and the message it displayed was "engine power reduced." I put my car into reverse, having no choice but to drive it and the traction control went out. My father in law pulled the code and it said something about the accelerator sensor. This is a known issue and recall in other models and I wanted to report it is also happening in my model.

Auto totaled sept 8, 2020. Lost conscience with tailpipe loose at back of cat converter. Diagnosed with low blood sugar at hospital. Severe injuries: spinal, right arm, left leg. Do not remember accident, even today. Took down electric pole and pine tree. Do not remember if windows open or closed that day. May have been combination of co from exhaust and blood sugar. Rural street, town in maine.

I have a 2010 Chevy Impala lt with 90K+ miles on it. I originally bought the car in 2011 used with 40K+ miles on it, so the car is no longer covered through warranty. Engine power reduced, service stabilitrac, etc. I'm a full time college student, and a full time uber driver. Last night I was with a passenger on [redacted] towards o'hare airport. My car reduced speed and suddenly dropped speed from 70mph down to 50mph. As I turned on the emergency light and start steering to the right to get onto the shoulder I was in the third lane to the right (the expressway is 4 lanes) as I was turning to the right to get onto the shoulder and to get to safety my steering locks, and there was a reckless driver going 100mph trying to cut off traffic. The lanes to the left were blocked so he had to cut me off by overtaking me by going onto the shoulder. …

2010 Chevy Impala only has 58,000 miles on it. I've already had been having issues with the car not starting all of the time and now after putting new tires on it, I am driving down the road and get "service stabilitrack," "service traction control," and "engine power reduced." I was on a major highway going about 60 MPH and was almost rear-ended due to the sudden loss of speed. I was able to move into a turning lane and get to a parking lot without getting myself killed. I still, however, have to figure out how I'm getting home from work! I had noticed when I first went out that it seemed to be shifting hard, but the roads were wet, so I thought perhaps it was the stabilitrack kicking in, not going out! I have two small children, who thankfully were not with me. The car has been nothing but trouble since I've purchased it. With such low-mileage, I figured I was good to go for awhile. …

2nd air injection check & shut off valve has failed for the 3rd time on this vehicle. I contacted a friend of mine at GM and a global technical specialist in the exhaust manifolds/heat shields/sai division of the general motors global propulsion systems stated that there was a corrosion durability concern with this part that resulted in elevated warranty. There is now a improved service pn available that replaces the pn that have been used in my vehicle. I feel that GM should recall these bad parts and refund us for them. Each time this part needs to be replaced the cost is over $400 to me. My first replacement part went on 1-30-13 at 46737 miles. The 2nd replacement part went on 7-8-14 at 71368 miles. Now the 3rd replacement part needs to go on at 115429 miles. The 1st replacement part cost me $567 to replace at the dealership. …

My car has worked fine scince I bought it with no check engine codes.I pulled into parking space and put car in park,all of a sudden it stalled out and will not crank anymore but has power.key will not come out of ignition and battery will not shut off.the ignition switch is a very common problem with impalas and is very dangerous.it locks people out of there cars,gets stuck in gears,wont let key release,wont start,sets off anti theft signal which cuts power to door locks,trunk,starter,fuelpump,and more.I have read hundreds of forums of this problem with Chevy Impala that has been going on for years without the problem being fixed.elderly women breaking down on highway or car just shutting off and not restarting.it is soooooo common with Chevy that they can diagnose the problem just over the phone.this is very unacceptable and has to be dealt with.please recall this problem.

I was driving and my cars engine light came on 1st then the traction control light. When they came on it reduced power to my engine and quit on the interstate. I had looked up possible causes when I had a test ran it was showing throttle body I replaced it and it never fixed it upon research I have seen multiple people who owns impalas from the years 2009 and up having the same issues and feel it is something that needs to be looked into. What I have found idk yet I am waiting on the piece to see if this is the issue or not is the pedal sensor could be the cause. But I feel it can be unsafe because my car had quit on a busy interstate with cars traveling at the speed of 65mph and higher. Just when I was looking it up I had saw so many other people having the same issues with their impalas. Please look into it thank you .\

Reduced engine power, stabilitrac and traction control messages. While driving 2010 Impala .comes on without warning car loses power down to 20 MPH I was driving 55 MPH on highway pulled over shut car off waited few minutes car restarted then not 5 minutes later did same thing only this time engine shut off was able to coast off road thank goodness called GM they told me it was out of warranty but was under special conditions .take it to GM dealer so few days later got in it to take to dealer ,no lights on drove fine .dealer told me to bring it back if and when warning lights came on again wow! Read this same issue on forums GM should have a recall on this very dangerous issue .called GM back after getting home they more less told me yes it should have been a recall but it isn't so have good day the cost is on you

Engine complaints in other Impala years