2011 Chevrolet Impala: adaptive cruise control problems

Filed Mar 26, 2018 · Driver assistance, Electrical · 259,000 miles · MI

Why is there not a recall on stability traction control? I see thousands of complaints on the internet for gm vehicles. It seems to me that gm just doesn't care enough after the sale. I just bought 2011 impala and now the stabalitrack service light keeps coming on while going down the road. It will do this for no apparent reason but happens mostly when accelerating. Using the cruise control on level road and dash warning light comes on and throws car out of cruise, decelerating while gages flip around all over the place. Power loss and lack of acceleration are definitely safety issues. Pulling out of my driveway onto michigan highway and I get halfway across highway and car stops. This highway is 55 mpg and while I would have had plenty of time to cross the lane, car looses all power. Looking on the internet gives no help for a fix. I turned the stability traction control off, but the problem does not go away. I see on the internet that many people have taken there vehicle to the dealer garage only to get charged exorbitant prices for "possible" that do not seem to help. Gm should get this figured out and not let every dealer garage do their own guessing on what will fix this very dangerous problem that is not limited to single model or year but spans many years with many models. My first vehicle was a gm but this may be my last gm. I would like to give a date below but this has been happening since I bought the vehicle about a month ago and getting steadily worse. I have had it checked out but nobody can give me any useful answers

Filed Jun 4, 2017 · Driver assistance, Engine · 85,000 miles · MI

While driving on the expressway at about 65mph my car suddenly alerted "service stabiltrak, service traction control, engine power reduced" and I was not able to utilize cruise control anymore and it started to slow down to approximately 40mph. Then my vehicle started to jerkily move & then it alerted "starter disabled service throttle" and my car shut down (steering altered & car shut off). I was able to maneuver to the side of the road & tried to restart my car (unsuccessfully for approximately 10 minutes). Did I mention I had my 2 children in the car with me when this happened? This was terrifying as my car just stopped-I had minimal warning & when traveling on the interstate it could've been a lot worse. After reading how frequently this happens, why hasn't it been recalled?

Filed Feb 6, 2015 · Driver assistance · 77,000 miles · MN

Driving on 494e in bloomington, minnesota during rush hour and snowing. The traction control light came on and the check engine light came on, the car started to slow down very fast and lost power.the following msg came up service stabiltrak, reducing engine power.the car felt like it lost a couple of cyclinders and the transmission would not shift up easily. After turning the car off and restarting the stabiltrak msg was gone and the traction control light went off and the cruise control started working again.few days later the check engine light went off. Chevy garage not sure of problem wants car for several days. I have heard may be throttle body not under warranty.

Filed Jan 15, 2014 · Acceleration, Driver assistance · 67,460 miles · IN

I was driving down the interstate with the cruise control on when suddenly my car jerked and a message showing "engine power reduced, service stabilitrak" showed up. I noticed the rpms jerking up and down with a pretty dramatic range. When I slowed down my car started shaking. The worst part is that when I shut my car off the problem stops. This has happened 4 other times. Once while idling. Once while slowing down from 55 to 35 and once while driving about 35 MPH. There seems to be no pattern and it is intermittent.

Filed Nov 29, 2013 · Driver assistance, Engine · 52,000 miles · OH

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.

Filed Mar 30, 2013 · Acceleration, Driver assistance · 43,000 miles · MN

Driving 30 MPH in a small town. A "binging" noise sounds 3 times and the traction control warning light as well as the check engine light came on. Vehicle messaging system stated that to "service stabilitrak," "service traction control," and "engine power reduced. The acceleration was noticeably reduced as well as a significant difference in maintaining speed. Merging onto a highway the cruise control would not kick in when setting speed which made it difficult to manage a 65 MPH speed limit.

Filed Aug 21, 2012 · Acceleration · 33,000 miles · VA

Tl* the contact owns a 2011 chevrolet impala. The contact was driving down an incline approximately 60 MPH with the cruise control activated, then suddenly the vehicle began to drift up to 65 MPH. The vehicle came to a stop upon engaging the brakes and resumed as normal. The authorized dealer was notified and they informed the contact that the vehicle was functioning as designed. The manufacturer was not made aware of the problem. The approximate failure mileage was 33,000. The VIN was unavailable. ..updated 09-26-12 *bf the consumer stated the cruise control fails when going down hills. Updated 10/01/2012

Filed Apr 25, 2012 · Acceleration, Seats · 92 miles · TN

My first issue was with the center head restraint in the back which totally blocks vision using the rear view mirror. I asked the dealer to remove it and I was told they could not. Backing up is impossible except with the side mirrors and traffic immediately behind is blocked when driving. This is a serious safety hazard. There have been many complaints but gm refuses to issue a recall to adjust these headrests. Also, I live in the tn mountains and the cruise control completely disengages when going downhill. The dealership told me "this was normal and all new cars did this to save gas"! I'm not that much of an idiot! Cruise control is set to maintain speed.... Period! Please.... Can you help?