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 / 2
Injuries / Deaths:
3 / 0
Average Mileage:
91,487 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

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2006 Chevrolet Impala Owner Comments (Page 1 of 3)

problem #58

Aug 072021


  • miles


According to my obd scanner the components that are failed is the throttle body position sensor circuit A & the throttle body position sensor circuit B. Before this happened the check engine light was on for about a week, when I scanned the vehicle with the obd-II the code for a large leak in the fuel EVAP system came up. One day while driving the vehicle I was stopped at a red light and once the light turned green I pressed the gas and the car started to sputter and move very slow also in the driver information center it intermittently showed the warnings service traction control and speed reduced. I had to pull over when safe to do so. Once I got the vehicle home I ran the scan again and it came up with the throttle body position sensor codes. The part is available for inspection. The safety of me and my passenger were in jeopardy we could've definitely been in an accident because it was so sudden when it happened. I have not taken the car to a dealer but an independent mechanic has looked at it. Vehicle has not been inspected by anyone other than me and an independent mechanic. This was a very scary experience and I have seen many forums with the same issues from GM cars. Your attention is needed and appreciated.

- Glendale, AZ, USA

problem #57

Jan 122021


  • miles
As many other 5.3 liter GM vehicles during this period, my car has been burning oil, fouling spark plugs, and throwing check engine lights for many years due to this all-too common issue. It is a safety hazard, and all GM vehicles with this motor issue should be recalled and fixed. It poses a serious hazard when you attempt to pull out into the road and the car sputters and misfires and you have no power because oil is seaping past the rings.

- Smiths Creek, MI, USA

problem #56

Apr 152020

Impala 6-cyl

  • 148,000 miles
My vehicle has had the problems of not giving me correct readings from the gauges when my car was running hot it never displayed any indication that it was which caused engine failure in my car throwing a rod I also have experience and still do when I turn on my signals my bright lights come on as well as sometimes when I open the door the lights do not come on but when I close the door they do my motor mounts on my car are not stable this was part of the problem the first time it shifted now not from wear and tear because I had an inspection done on the vehicle prior to purchasing the vehicle and received a clean bill of immaculate care and health of the vehicle in less than 8 months I have been in nothing but one disaster after the next I'm feeling very unsafe and unsure of this vehicle it seems as if it's moving faster than what is on the speedometer because I have often had to apply the brakes in an emergency fashion just to stop I know this is not normal I can forward the bills of the said repairs so that it was support my claim I do not have them with me at this time but my email is [xxx]. information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Corona, CA, USA

problem #55

Aug 042020


  • 197,000 miles


As I was driving my car acted as if it was going to stall wouldn't go pass 45-50 miles per hour. I went to a automotive shop just to find out the catalyst converter it's very dangerous why driving in the car stalls.

- Little Rock, AR, USA

problem #54

May 292020


  • 149,000 miles
The contact owns a 2006 Chevrolet Impala. The contact stated the temperature gauge was defective. The vehicle was taken to an independent mechanic and the contact was informed that the engine needed to be replaced. The vehicle was repaired. The contact stated on while driving at an undisclosed speed and making a right turn, the vehicle stalled without warning. The vehicle was not drivable. A dealer was not contacted. The vehicle was not diagnosed nor repaired. The manufacturer was not informed of failure. The failure mileage was 149,000.

- Corona, CA, USA

problem #53

Mar 292019


  • 129,000 miles
The contact owns a 2006 Chevrolet Impala. The contact stated that the transmission gears failed to properly change over in drive to accelerate. As a result, the vehicle intermittently decelerated and jerked. There was no warning indicator illuminated. There was also a drastic reduction in engine power. The dealer had not been contacted. An independent mechanic diagnosed that the control pressure solenoid needed to be replaced. The manufacturer was notified of the failures. The vehicle was not able to be safely driven and was parked. The vehicle was not repaired. The approximate failure mileage was 129,000.

- Pittsburgh, PA, USA

problem #52

Mar 152019


  • 22 miles


Camshaft position sensor is making car fall dead while driving at any speeds

- Houston, TX, USA

problem #51

Jun 042018

Impala 6-cyl

  • Automatic transmission
  • 64,000 miles
The contact owns a 2006 Chevrolet Impala. The contact stated that the oil pressure indicator illuminated. The dealer (heritage Chevrolet Buick owings mills, 11234 reisterstown rd, owings mills, md 21117, (866) 730-3826) repaired the oil pressure sensor. Afterwards, the check engine indicator illuminated. The manufacturer was notified and provided a case number. The vehicle was still at the dealer and had not been repaired. The failure mileage was 64,000. Problem resolved by dealer.

- Windsor Mill, MD, USA

problem #50

Dec 102018


  • miles
2006 Chevrolet Impala. Consumer writes in regards to loss of engine power.

- Auburn, WA, USA

problem #49

Dec 122017


  • 136,000 miles
I would like it documented that someone is going to be seriously injured or killed all due to a known and reported issued unless Chevy does the right thing and issues a recall immediately! I have a 2006 Impala and while driving on the highway at 70 miles per hour my vehicle dropped down to 15 mph saying reduced engine power then completely shut off on the highway. Please note my 2 year old son, and 10 year old daughter were in the vehicle with me. I was fortunate enough to make it off to the side without being hit much less killed but other people not may be so fortunate. What is it going to take for a recall to be issued?

- San Antonio, TX, USA

problem #48

Jul 042017


  • 132,000 miles


Car fired a message stating "engine power reduced" car would not accelerate. The vehicle was stationary and being moved from street into driveway when message was prompted

- Indianapolis, IN, USA

problem #47

Aug 052017


  • 134,000 miles
Oil pressure sensor comes on and states the following: Oil pressure low, stop engine. This message flashes and a beeping noise comes on. The vehicle is in motion highway, street, turning, etc... even after oil changes and checking oil level is good the above still comes on.

- Westminster, MD, USA

problem #46

Mar 092017


  • 140,000 miles
The contact owns a 2006 Chevrolet Impala. While driving approximately 30 mph, the vehicle stalled and lost power without warning. The vehicle was pulled over to the side of the road and the contact noticed smoke coming from the two mufflers at the rear of the vehicle. The vehicle was towed to an independent mechanic who diagnosed that the engine blew up. The contact stated that the technician did not repair the vehicle. The manufacturer was not made aware of the failure. The failure mileage was 140,000. The VIN was not provided.

- Spokane, WA, USA

problem #45

Apr 062017


  • 182,000 miles
I have a 2006 Impala while I'm driving this car it goes into reduce engine mode and cut off and go to disable start mode and wont restart until after 30 min I be on the freeway when it happens sometime I'm am not the only person with this issue this can lead to serious death or injured this matter need to be investigate asap before someone died or serious injured I hate to be infront of a 18 wherler when this happen

- Detrtoit, MI, USA

problem #44

Jan 222017

Impala 6-cyl

  • 103,000 miles
While driving the traction control light came on as well as the check engine light then reduced power so that I was driving at about 5 miles in traffic. Car then stopped and there was no power at all. I put on my hazard lights and turned the car off waited a few minutes and it started and only check engine light remained on. I was fortunate to be almost at a red light when this happened in midtown manhattan so that there was only blaring horns when I couldn't move the car. My mechanic said I need to bring the car in when the lights are on so that he can read the error messages. The check engine light doesn't give him enough information. I haven't driven since as I'm afraid but will drive locally and bring the car to the mechanic as soon as those lights come on again. It has happened before but not when I could bring it to the mechanic.

- College Point, NY, USA

problem #43

Jan 182016


  • 128,000 miles
I have had my car for almost a year now and ever since I bought it, it has caused nothing but an issue. I always get an "engine power reduced" or sometimes even "starting disabled service throttle." This can happen anywhere from 1-100 times a day while I am driving. It has happened on city streets, highways, turning, you name it and it has happened. It is becoming a very big safety issue as it will do it in the middle of intersections and I fear that I will get into an accident. I have ran the codes and replaced every part in the car that dealerships have told me to replace but it still keeps happening. I have done a ton of research on what could be wrong and it not only seems like this is happening to a lot of people but the things they replaced in their cars fixed the issue but mine seems to not ever be able to be fixed. This has become a dangerous thing, as it has happened to me in the middle of snow storms on icy highways.

- Blaine, MN, USA

problem #42

Apr 102016


  • miles
Ongoing issue with error message relating to "service traction control" "reduced engine power" appeared 4/10/2016. Ongoing history and service related to throttle position and sensor (also serviced) codes P2176; P 2135. 8/1/15 I have addressed through replacing of throttle position and sensor; battery cable (dealership svc dept suggested low voltage related to this issue - retested, issue continues) parts store has suggested "throttle actuator control module P 1516' codes also include P0121, PO2135, P2119 found pmc to be faulty -- "repair and replaced" 12/30/2014; throttle body assembly replaced on April 5, 2014. This has been an ongoing issue for two years. Engine power drops and car will only drive at a low speed < 40mph. This is when the car is in motion. Various attempts to resolve the problem have been unsuccessful. This issue began at apx 140K miles and has reoccurred at 166L, 167K, 180K, 193K. Speeds that it has occurred has been at highway speeds of 60-65mpg to residential 25-35mph. Records have services dates are available; too many to upload all.

- Plattsmouth, NE, USA

problem #41

Jan 012015


  • 114,000 miles
Oil leak.

- Matthews, NC, USA

problem #40

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 #39

Dec 012015


  • 103,000 miles
The contact owns a 2006 Chevrolet Impala. The contact stated that while driving at 11 mph, the vehicle stalled without warning. The "reduce engine power" and 'shut off immediately' warning messages displayed on the message board. In addition, the contact stated that the check engine warning light remained on. The vehicle was taken to a dealer to be repaired. The manufacturer was not made aware of the failure. The failure mileage was 103,000.

- Calumet City, IL, USA

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