Four problems related to cruise control have been reported for the 2011 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Chevrolet Impala based on all problems reported for the 2011 Impala.
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.
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.
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 accelerate 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.
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?.