Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.

Print this page Notes: Top complaints for the 2006 Chevy Impala include how the transmission slips, clunks and fails. Or how the power steering knocks and squeals. In other words, this car is a noisy bucket of eventual failure points.


really awful
Crashes / Fires:
3 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
87,531 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2006 Chevrolet Impala engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2006 Chevrolet Impala:

Unsubscribe any time. We don't sell/share your email.

2006 Chevrolet Impala Owner Comments (Page 1 of 2)

problem #35

Jun 022016


  • 59,000 miles


Received a engine warning symbol and sound/chime and then got the message, "power is being reduced to the engine". my speed of 40 mph steadily lowered to where I put on my warning lights as cars were piling up behind me. I was able to turn off on a side street where the car stopped. My mechanic has read the codes and replaced indicated parts, but the problem happens again often. Below is a web site url where you can see numerous people reporting the same problem. It is dangerous as it happens to people on interstates where they have no where to get out of traffic. There are more than 22 pages of 100S of reports of this reduced power message at:

- Iowa City, IA, USA

problem #34

May 082016


  • 0 miles
Takata recall my windows stop working all together my car some time dont go when I push the gas it will jerk real hard and then some times it takes along time to brake and this been a on going thing but when I called the dealer they gave me a hard time about if there where any recalls about

- Norcross, GA, USA

problem #33

Feb 122016


  • 191,000 miles
Driving at 70 mph on interstate and engine slowed down suddenly, ,,reduced engine power message came

- Dyersburg, TN, USA

problem #32

Aug 062015


  • 140,000 miles


I was driving my vehicle when it suddenly cut off with an "engine power reduced" sign and the car ultimately shut off completely. The car would not come back on. It had to be towed home and then towed to a Chevy dealership in frankfort, il. The Chevy dealership could not depict the problem and held my car for almost two weeks. The dealership said that it may be something intermittent but failed to fix the issue. The dealership released my car to me and the engine power reduced returned the next day. The car is currently out of commission.

- Chicago, IL, USA

problem #31

Apr 032015

Impala 6-cyl

  • 134,989 miles
This incident first occurred a few weeks ago while driving on the highway I got the engine power reduced message. My car didn't seem to run different and the engine light went off the very next day. Then about 1 week later it happened again but this time my car was acting funny when I needed to accelerate. I was trying to wait until paid day to take it to be checked but I couldn't wait. On Wednesday, April 1, 2015 whenever I stopped at a light or stop sign when it was time to go my car would not accelerate. I made it work ok, but on my break I needed to go take care of some important business and my car just stopped on me while I was making a right hand turn. It would not start up. I could not turn it or anything. My car stalled and I ended up on the wrong side of the road. I was able to push my car out of the way and I had to walk back to work. After work my car started with no problem and I drove it less than 1 mile to Firestone tire where they did a computer diagnosis and told me the accelerator control was bad. I asked them if they were sure that was the problem and not the throttle body and they said yes. While on my way home tonight Friday, 4/3/15 engine came on and engine power reduced message again. I am very upset and scared from what I have research and read about others this has happened to. This is very dangerous and I feel I should not have to be injured, killed or someone else for this to be fixed. Signed, [xxx] (very unhappy consumers) information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Ypsilanti, MI, USA

problem #30

Mar 182015


  • miles
As I was driving on the expressway car slowed down only driving 5 mph... leaving me stranded on the side on the expressway. I just put a engine in the car so I know thats not the problem I always had the transmission worked on in the past.

- Chicago, IL, USA

problem #29

Feb 172015

Impala 6-cyl

  • 98,000 miles


Upon entering my vehicle and waiting for the engine to warm up as it was around -05 degrees F there were no issues to be had. About 15 seconds after leaving my parking spot at my place of employment and 70 feet later my engine started feeling weird, heard a chime and saw my dashboard with the wording "engine power reduced." Not knowing what it was and knowing I had no other choice continued driving home. 4 days pass no issue then yesterday when it was 27 degrees F outside again had the car warm up and about same time frame and same distance later the same series of events occurred but this time the RPM was bouncing between 700 and 1100 when I was moving in idle. Pulled over and opened the hood to inspect (car was shaking a lot at this point) and the engine is shaking as much as it could while still in its restraints, upon revving the vehicle the engine leveled out but with the foot off the gas again the shaking started again. Until further notice a vehicle that I need for my commute to and from work is parked. I do not feel safe driving not knowing what can happen.

- Jackson, MI, USA

problem #28

Jan 012015


  • 56,000 miles
The contact owned a 2006 Chevrolet Impala. While driving approximately 66 mph with the cruise control activated, the contact heard an abnormal noise as the speedometer decreased. As a result, the contact lost control of the vehicle and crashed into a ditch, landing 80 feet away. The contact also noticed that the axles were fractured. A police report was filed and there were unknown injuries sustained that required medical attention. The vehicle was destroyed. The contact referenced NHTSA campaign number: 14V355000 (electrical system) but did not disclose if the veihcle was included or repaired under the recall. The manufacturer was not notified of the failure. The failure mileage was 56,000. The VIN was unavailable.

- Mountain Home, AR, USA

problem #27

Dec 262014


  • 183,000 miles
My car will be in drive and going down the road and my service traction control light comes on and then flashes between that an reduce engine power. Causing my car to have reduced power !

- Lyons, MI, USA

problem #26

Apr 032014

Impala 6-cyl

  • 159,000 miles
I've had an ongoing issue since this spring with an issue on traction control and the display reporting 'reduced engine power ". I've now had the throttle body sensor and power train computer module replaced. I'll be driving at a rate of speed on the highway of apx 60mph and then these error messages appear and the cruise kicks off. There's hesitation as I try to accelerate.

- Plattsmouth, NE, USA

problem #25

Nov 062014


  • 12,150 miles


The contact owns a 2006 Chevrolet Impala. While driving approximately 25 mph, the vehicle accelerated independently without warning. As a result, the contact crashed into another vehicle. The air bags failed to deploy. A police report was filed and there were no injuries reported. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 12,150.

- Detroit, MI, USA

problem #24

Jul 062010

Impala 6-cyl

  • 50,000 miles
I was driving on the freeway in St. Paul, mn. I started up an incline to exit the freeway. I suddenly lost all control of steering and brakes. I traveled uphill until the car rammed into the curb on the other side of the exit ramp. I turned off the car and got out and called the police.

- St. Paul, , MN, USA

problem #23

Feb 142014

Impala 6-cyl

  • 127,000 miles
I was driving on the highway at 60 mph when all of a sudden the message reduced engine power appeared and my speed dropped down to 30 mph. It was rush hour traffic and I panicked. I tried pressing the gas pedal all the way down but my speed would not increase. The car behind me almost plowed into the rear end of my car but luckily there was space in the lane to the right for that car to quickly move over to avoid hitting me. They honked and I maneuvered to the shoulder of the highway and put my car in park. I restarted my car about 10 minutes later and got off the next exit so I could take side streets home since I was frightened my car would again suddenly lose power. I drove to auto zone and had the code ran and it was for the throttle position sensor and throttle body. After researching online I came across the edmunds forum where hundreds of GM owners had the exact same problem ! GM needs to recall and replace these inferior throttle body parts but I guess until there are fatalities it will go ignored "?"

- Saint Louis, MO, USA

problem #22

May 132014

Impala 6-cyl

  • 75,333 miles
I was turning from one street onto another and all of a sudden there was a clanking noise coming from under the car and then the power steering went out along with the brakes and my acceleration. I had to pull over and stop the car. After all this my car would not start and every time I tried to start my car, it sounded like the battery died but I know it wasn't the battery.

- Saugus, CA, USA

problem #21

Mar 292014

Impala 6-cyl

  • 160,000 miles
Well lets see I just bought this 2006 Chevrolet. Impala ls 4dr sedan and it surges like crazy im going from 0 to 35 and my car is trying to go but it almost like if I was pushing the gas pedal of and on and it makes M6 head bob back and forth when it does it I think its the transmission not running right but this is very dangerous and could cause a law suit towards GM plus the steering wheel gets real stiff some times its hard to turn. I have two boys and I hope that this stupid car doesn't get us killed because of this problem that GM wont fix are lives mean nothin. Maybe I should go to channel 4 news and report this problem and how GM wont fix this.

- Quinlan, TX, USA

problem #20

Apr 012013

Impala 6-cyl

  • 91,000 miles
At about 91000 miles my transmission started acting up (not shifting right, not going into any gear etc.) it finally would not shift at all unless I turned the car off multiple times and would then drive for about 2-5 minutes then all the gears would go out again. I had it towed to a transmission shop thinking it was just a censor and was told that my transmission would have to be replaced/repaired. It cost me almost $3000 to get it fixed. I have read on here and online that the 2006 Chevy Impala has had many issues with this. This is a very costly repair and wish there was a way to get at least a little refund on the cost. Also I have tried about everything to get the passenger side body side molding to stay on and people I have talked to state that they have had issues with that one staying on. It catches my door if I don't remember to push it in before opening the door. It is going to cost me $50.79 plus shipping to get a new one of these as well. The third thing I have wrong is I have had to replace both wheel bearings in the front end because of my ABS traction control sensor being messed up!

- Mineral Wells, WV, USA

problem #19

Mar 102014

Impala 6-cyl

  • 165,000 miles
Driving 65 speed limit, traction control light and engine light came on. Traction control alternates with engine power reduced. Slowed vehicle to 40 mph. Other cars dangerously close and blowing horns. Pulled off road, opened hood shut off engine. Found nothing wrong. Restarted everything normal except engine light still on but power is available. This cycle repeats every few days. There are many people with this problem. About time GM sheds some light on the problem.

- La Crosse, VA, USA

problem #18

Jan 012014


  • 240,000 miles
1. the car would stop accelerating and completely turn off while driving. Steering wheel would lock and would coast to a stop. All the lights on instrument panel and everything would turn off. 2. 3 seat belt latches no longer work.

- Fort Worth, TX, USA

problem #17

Feb 152014

Impala 6-cyl

  • 83,108 miles
Going 55 mph car suddenly dropped to 35 mph almost got rear ended by cars behind me. Dash lights came on service traction control, engine power reduced, check engine light came on, cruise control not working. Had some work done at Chevrolet dealership 100 miles ago so maybe something they did wrong. But I see there are many complaints and dangerous situations caused by this very same message. Someone is going to get hurt or killed by this sudden deceleration with no warning.

- Braselton, GA, USA

problem #16

Feb 022014


  • 80,100 miles
I was jus leaving my job on my way to school when as I reached about half a mile away from my job the car displayed a message engine power reduced I was goin the speed limit which was about 45 to 50 when I was suddenly uncontrollably brought to under 20 mph cars nearly ran into my rear several times so I had to quickly put on my hazards N pull into a nearby shopping center I had to have the car towed home N now I'm car I don't have the necessary funds my local Chevrolet dealership is chagrin to fix this issue especially when they charge by how long the job takes after for the life of me I can't understand how my 2005 Chevy Impala which had 155000 miles performed better than my 2006 I never had as much issue as I did with this car as I did with older also in this 2006 Impala this cooling system part are very cheap I would not recommend a Chevy to any one after experience the problems I did with this car especially when I was driving and lost all my power steering fluid after just having a recall for an power steering pump hose repaired.

- Miramar , FL, USA

Read the next 15 complaints »

Not what you are looking for?