general problems of the 2011 Chevrolet Impala - part 2

I have problem with the stabilitrak/traction control on a 2011 Impala with 120,000 miles. I have found other people from all over the country with the same problem. I have taken it to 3 different mechanics and they are all unsure as to what it is. I have put a new throttle body in, new spark plugs, change my oil faithfully every 3,000 miles. It continues to flash the message to me, does not have the same acceleration, is very unpredictable as far as reducing my engine power at any given time. This happens when I'm driving down the road and even when I just start my car. I have to turn car off, let it sit for a few minutes and then it seems to reset but the engine light stays on for a few days. This needs to be addressed with as many complaints I am reading about!.

The engine sputters and bogs down. I have spent over $300 trying to figure it out, and no one can because there is no dashboard light that comes on. It happens mainly at a slow rate of speed.

The contact owns a 2011 Chevrolet Impala. The contact stated that the engine would shake when attempting to start. The engine power reduce, service traction control and service stabilitrak warning lights illuminated. The vehicle was taken to a dealer where it was diagnosed that the throttle body sensor needed to be replaced. The vehicle was repaired however the failure recurred. The manufacturer was made aware of the failure. The failure mileage was 83,679.

2/17/2015 was the second event. I was driving approx- 65 mph up a mountain when my electonic display panel showed stabilitrack/service traction control/vechile in reduced power. As the power suddenly reduced I lost power steering control and brake function. Since I was traveling at a up hill grade, I was barely able to jerk the steering wheel enough to roll across the lane of traffic beside me to the side of the road. I wasn't able to get out of the road completely and was almost hit by a logging truck. After removing the keys from the ignition for a few minutes, I restarted the car without any hesitation. The engine light still remains on at this time. I did contact onstar and have them run a diagnostic test which revealed a problem with supposed fuel system. I have not taken it to a dealership yet. After so many complaints on various sites that I have reviewed, looks like gm would do a recall and investigate the problem before someone loses their life.

2/17/2015 was the second event. I was driving approx- 65 mph up a mountain when my electonic display panel showed stabilitrack/service traction control/vechile in reduced power. As the power suddenly reduced I lost power steering control and brake function. Since I was traveling at a up hill grade, I was barely able to jerk the steering wheel enough to roll across the lane of traffic beside me to the side of the road. I wasn't able to get out of the road completely and was almost hit by a logging truck. After removing the keys from the ignition for a few minutes, I restarted the car without any hesitation. The engine light still remains on at this time. I did contact onstar and have them run a diagnostic test which revealed a problem with supposed fuel system. I have not taken it to a dealership yet. After so many complaints on various sites that I have reviewed, looks like gm would do a recall and investigate the problem before someone loses their life.

I was driving on a highway going approximately 55 mph, the engine light, stability control light, and reduced engine power light came on at the same time. Within two (2) minutes of the dash warning lights coming on, the car completely shut it self off while I was driving in the left lane going 55 mph. I lost steering, had no power, or braking. I threw the car in neutral, in an attempt to get it started it while I was in motion with no power. The Impala didn't even try to turn over. The car wasn't responding because the power steering / braking was not responding. The Impala went into "limp mode" without warning. I let the car cost for a while until I could find a safe spot to apply the emergency brake. I really had to muscle the steering wheel with some significant force to get it to turn. I have never had any problems with this vehicle before this issue. It turns out that the "pedalassembly" gas pedal sensor went bad, causing the 2011 Impala to go into "limp mode" while I was driving.

Tl-the contact owns a 2011 Chevrolet Impala. The contact stated that the car looses power at various speeds. The contact stated that all warnings illuminates as the failure is persistent. The vehicle was not diagnosed or repaired. The manufacturer is not aware of the failure. The failure mileage was approximately 100,000. Ec.

As I was driving the engine ligh pop on and. Read stabilitytrak reduce. Engine speed service control soon.

The car keeps running after it is turned off. The fan also keeps running, then the next morning the car wouldn't start. The air won't turn down and sometimes it doesn't work at all. There doesn't seem to be a difference between air and defrost. While I am driving, the light keep getting dim, then brighter, then dim, then bright. It was the next morning then when it wouldn't start! sometimes when we put the key in, we couldn't get it out. We had to keep trying to turn it on and off, then it finally let us take the key out.

I was driving down I-74 outside peoria IL and the stabilitrac power reduced popped up on the dash and 3 seconds later it stated the anti-theft engaged and shut my car off. I almost got rear ended by multiple cars on the interstate. I was in the left lane and barely made it to the side of the road. I emailed gm and they have not gotten back to me yet. I emailed them the same day it happened.

The contact owns a 2011 Chevrolet Impala. While driving 70 mph, the traction control and reduce engine power warning indicators illuminated as the vehicle decelerated to 10 mph. The failure occurred on several occasions. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 77,000.

The service stabilitrak, traction control, and reduced engine power warnings came on and the car started to lose power going around a curve. I temporarily lost the ability to accelerate nearly causing me to get rear ended by a vehicle behind me. Since the incident occurred the car has been very sluggish and unsafe to operate. I am planning to get this serviced ASAP. After reading many forum posts online regarding this safety issue, I believe a recall should be issued. I was shocked to see how rampant of a problem this and that it is usually caused by a faulty throttle body that isn't covered in the 100k mile powertrain warranty. Myself and many others from what I have read believe this to be a very dangerous malfunction. If this were to happen at high speeds on the highway someone could very easily be killed if their car loses power due to this.

The contact owns a 2011 Chevrolet Impala. The contact stated that the engine warning light intermittently illuminated on the instrument panel. The vehicle was taken to dealer for diagnostic testing however, the failure could not be diagnosed. The manufacturer was not notified of the failure. The approximate failure mileage was 54,000.

While starting my car. Notification came up engine power reduced. Wasn't able to drive more then 40mph! engine was shaking.

In may of 2013 I received a message on my dash board about stabili track, traction control and reduced engine speed. I took my car to the chevy dealer so I could get a diagnostic, and they replaced a sensor behind my pedal. Just this weekend, Sunday April 13, 2014. The message displayed across the dashboard again. I'm going to call the chevy dealer that fixed it the first time. Then I'm going to call gm. This is a very dangerous malfunction in these cars. From viewing and reading other stories, this is something gm should have known about and addressed.

I was driving on hwy 41 n in south georgia and my engine light comes on and 3 messages come 1) service stabiltrac, 2) service traction control, 3( engine power reducing (and it did). Then the car seems to want to stop or hesitate like its running out of gas (still have half tank). I become afriad I pull over and put car in park and it's like the car wants to shut off but it doesn't until I shut the enginge down (when I slowed down the car started shaking). I bought this car less than six months back and it had only 46,000 miles on it. Now I here some rattling coming from some where around the wheel. I have read many other complaints almost identical to mine. Today 4/2/2014 the engine light is on but I don't see any of the warnings and the car has not hesitated as badly as it did yesterday. But from what I have researched on this matter gm needs to issue a recall and address this matter as it could cause be the making of some serious law suits.

July 2013 had hub bearings replaced in order for car to pass inspection. Issue with "service traction control" had never occurred the prior winters -- car slows down, engine slows down -- this just started happening after the hub bearings were replaced. On March 23, 2014, after paying tolls on the turnpike, the "service traction control" warning again appeared (no snow, nothing to trigger the warning) and then my car stopped, no power. . . The steering locked. . . Fortunately I was going slow enough and somehow made it to the breakdown lane. Car had absolutely no power. . . Completely dead. Waited about 1/2 hour and was able to restart. Called gm 3/25 who contacted the dealer for an appointment for me. Dealer never called me (now 4/7/14). I have placed another call to gm. The vehicle should not completely shut down. Asked gm if there was a recall and was told no. I hope others who experience this will file complaints so that they will recall. Had I been in a different lane, I may have had someone crash into me at 65 mph and I probably would not be alive. This needs to be recalled. Too dangerous.

While I was driving the service stability pack and traction control light came on and immediately after the reduced engine power came on. The car then jerked, and shut off while I was still driving, and wouldn't start again until approximately 30 minutes later. There were no wet nor road hazard conditions that would have caused this to happen. Furthermore, I was driving at 60mph when this occurred in moderate traffic and almost got rear ended. This is a very unsafe issue, and I was told that the gas pedal needs to be replaced. Since then my vehicle has done this several times. This issues needs to be recalled because a lot of individuals have complained about having the same issues with the Impala. What is it going to take an injury or fatality for a recall on these vehicles. Moreover, any vehicle that shuts off while driving at any speed because of an issues with throttle body/gas pedal needs to be recalled because this is a major safety issue.

I was driving on i70 going 70 mph and out of nowhere my engine light comes on and 3 messages start appearing on the dash. 1) service stabiltrac, 2) service traction control, 3( engine power reducing. My car a 2011 chevy Impala slows down to about 50. I get it going back to 60 but not very easily. I keep going and merge onto 465 (indianapolis indiana area). I come into slower traffic where I need to stop. I apply my breaks and the pedal will not engage. Almost hit a car. Also when I slowed down the car started shaking bad. I continue a little farther in slow traffic and had to stop again, same thing with the breaks. So I pulled over and shut off my car on the side of i465. My daughter had looked up the error messages on the internet and there seem to be a lot on there with the same problem. They all said the same thing, after shutting the car off and restarting it it was fine. I made it home and everything seemed fine for a couple of weeks and it happened a few more times so far. Once at a stop sign and the same day as I was backing out of parking space at work. Once again that same week I was driving in town and took off from a red light and it happened again. From a complete stop the car started shaking and the error messages and engine light come on and it would not accelerate. I would have thought nothing about it except to get it fixed, but after reading so much on the internet about the same problem there has to be an issue and needs to be recalled. Gm needs to own up to this problem before people get injured or worse die from this issue.

While driving down the road service traction control reduce engine power and stability control light came on. Car engine lost power and I thought it was going to blow up it made the whole car shake. You shut it off for a few and restart it and its like nothing ever happened. Not to happy about this I have not had the car a year. Guess a person needs to die from this matter before there is a recall on this what a joke. And the worst is chevy will not cover any of this even if the car is under a warranty.

When the accelerator pedal is released, the car does not slow down. Dealer says car is ok. This happens at any speed and makes it difficult to slow down or stop. The car will run along at about 20 miles per hour from a stopped position without touching accelerator. Very difficult to drive on ice or snow.

Code p211222 and code c0242 car would not go over 5 mph. Engine light was on. Called onstar. This is the third time this has happened in 15 months. Fixed twice. Spoke with general motors safety division and stacy at general motors several times.

While driving at 60 mph, messages were flashing: service stabilitrac soon, reduced power to engine, check traction control. Car decelerated to 30 mph on the highway, hard to steer. I pulled off the road, turned it off and waited. Several minutes later it restarted and I was able to drive it home. The engine light and the traction control light still come on. It shifts hard (and it's an automatic transmission). In addition, cruise control will not work during this condition.

I was driving on the highway at 60 mph when my car began to slow down until it came to a stop. I could do nothing but sit there I did not have enough time to make it to the emergency lane. I could have been killed! the car gave no warning. I recevied several messages on the dash that stated disabled starter, service throttle, and the check oil light was on. Over the two years that I have had this vehicle I have had to have the transmission replaced and one year later another potential costly repair. Something really needs to be done with the 2011 chevy Impala's, there is a serious safety issue going on that has not been look at by chevy.

Pulled into 35 mile per hour traffic and lost engine power. Warning lights and message for stabiltrac, service traction control and reduced engine power came on. Experienced reduced engine power with traffic approaching from behind. This happened with 22,000 miles in 7/2013. The engine control module and stabilizer shaft link were replaced. This happened again 2/2014 with 26,000 miles. The throttle body cover and sensor kit were replaced. Just today, 7/23/2014, it happened again with 30,000 miles. Each time it has happened pulling into 35 mile per hour traffic and experienced reduced power.

When driving, noticed on the freeway, it wasn't smooth at times. The transmission's shifting was pretty rough. No indication of any issues popped up on dashboard. When arriving at a freeway ramp, it felt like I was hydroplaning, but on gravel. Then, noticed when pressing the accelerator, was not going anywhere, but felt like I was in neutral. Was able to pull over and take a look. . . Transmission fluid was fine. . . Nothing popped up on the dashboard. Nothing! the indicators for tires, oil, etc were showing info, but nothing to indicate it had died or if there were any engine issues. Had brought it to the dealership where I had bought the car 11 months ago. The mechanics were saying that they have never seen such an huge transmission failure before. They would have to replace the whole thing.

For several weeks, the indicator on my vehicle will alert me "service traction control; reducing engine power". At first I thought this was just a glich, until it kept happening over and over and over again. There are days when the indicator will go off and remain off for a week or two, but then it will all of a sudden come back on and remain on for a week or so. I get my vehicle serviced regularly. I have contacted gm dealership after dealership, and they have all told me there is nothing they can do. Finally, I asked for the corporate office number (800-462-8782). I called gm's corporate office (reference#: 71-1210614255) and was told that my powertrain warranty is still good but my bumpertobumper warranty has expired due to the mileage. I advised the representative (clair) that I had googled this information to find out what was going on and this appears to be a known issue with chevy implala's, and I asked why hasn't gm put out a recall on this issue. She then tells me that I need to pay and get a diagnostic check to determine the actual issue. My question to her is "why should I or any customer have to pay for something that is a reported known issue?" there representative continued to apologize and tell me there was nothing that gm could do because this was not a known issue. . Read more...

The service stabilitrak light comes on and engine power is reduced. It happened this morning while taking my kids to school. . . Very scary thing when kids are in the car because it just starts losing power & you really cannot drive it like this. .

Had the service light and service stabitrak and reduced power come on. Seems to happen a lot during the winter. I have had the gas pedal replaced seemed to help for a week until snowed again but was due to nice weather I have also had to take off throttle body and cleaned with throttle body cleaner. Seemed to do the trick until it snowed again. It is very dangerous when this happens and almost caused a crash. The problem seems to be with the senor but works fine when not wet out or snowing. After looking online seems to be a very common problem with chevy with them not doing a thing other then wanting to charge me 600 bucks to replace throttle body. Seems like chevy never wanted to fix this issue due to the fact of alot of other models of chevy have the same problem going back atleast 4-5 years.

The contact owns a 2011 Chevrolet Impala. The contact stated that while driving approximately 35 mph, there was a reduction of engine power with the illumination of the traction control and stability control warning indicators. The failure occurred on icy and dry road surfaces. The vehicle was not diagnosed or repaired. The manufacturer was notified of the problem. The approximate failure mileage was 35,000.

I was driving 60-70 miles per hour on the interstate and the engine began to lose power. After a couple of minutes the engine got a sudden boost of power. I was told it is the sensor on the gas pedal that is effecting the engine power and it is not covered by power 100,000 mile warranty.

Tl-the contact owns a 2011 Chevrolet Impala. The contact stated that while driving approximately 65 mph all the warning lights illuminated and indicated that the engine was loosing power. The contact pulled over and waited a few minutes before restarting the vehicle. The vehicle was later taken to a dealer who diagnose that the app sensor and modulator failed and needed to be replaced. The vehicle was repaired for both components. Approximately 1 month later the contact was driving approximately 65 mph and the vehicle started to slow down while he was pressing on the accelerator pedal. After pulling over the vehicle was unable to accelerate but the rpm's were rising. The vehicle was towed to the dealer diagnosed that the transmission failed and needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and they offered no assistance. The failure mileage was approximately 51,000 and the current mileage was approximately 52,000. The VIN was unavailable. Pmb.

My wife was driving on the highway and out of the blue the stability control and reduce engine power light came on the message display. There were no weather conditions at the time. This has happened 6 times total. One time it happened as she was warming up the car. All of a sudden it started shaking and she felt as if it was about to take off into space. She turned it off three times - even tried to drive it and move to another parking place and turned if off again before it finally stopped shaking.

While driving down the road, the car will violently jerk, and the dashboard will flash, reduced engine power. Now car won't move at all. We have replaced the gas pedal twice! Chevrolet needs to address this issue. I am seeing it all over the internet.

I have a chevy Impala, 2011, and a month or so after buying it the "service stabilitrak" light came on. Before I could get it into a shop, it went off. It came on again yesterday and my engine power all but shut down, I was trying to get through an intersection and thought I wouldn't make it. After researching, I see that chevy has had numerous issues with this. Why are they not repairing the problem? this is a huge safety issue for drivers. ## VIN failed ## chevy Impala 2011 ##.