2007 Chevrolet Impala: adaptive cruise control problems

Filed Aug 1, 2016 · Brakes, Steering · 74,700 miles · KY

I was traveling on the interstate at about 60 MPH going uphill. I did not have it in cruise control. Iwas passing a semi. Suddenly the steering became very difficult, and the brakes seemed hard to push. I finally managed to get the car off the road and stopped. I put in park and got out to check and see if one of the tires had blown out, I left it running. The tires were fine. I got back in and put it in gear and eased down on the gas to see how it was going to go. It did fine, I drove it the rest of the day and it seemed to be normal. I am concerned this could be connected to the ignition recall back in 2014 and worry that it might happen again. My husband is attempting to get it looked at by mechanic.

Filed May 1, 2015 · Acceleration, Driver assistance · 80,000 miles · IN

While driving my "service traction control" message came on followed by "reduced engine power". It slows down my vehicle and sometimes I cannot even accelerate when these messages appear. They always come on together and every single time I drive. Sometimes right away, sometimes after I've been driving for awhile. It use to not happen when I was using my cruise control but not even when that is on it happens.

Filed Nov 19, 2014 · Electrical · 190,000 miles · MO

Tl* the contact owns a 2007 chevrolet impala. The contact stated that the doors hesitated to unlock and lock. The contact also stated that the vehicle stalled and the traction control warning light illuminated. In addition, the vehicle accelerated and the cruise control activated independently. The contact stated that the failures occurred after the vehicle was serviced under the federal safety agency campaign number: 14v355000 (electrical system). The vehicle was taken back to the dealer who stated that the failures were not related to the recall. The cause of the failure was unable to be determined. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 190,000.

Filed Oct 20, 2014 · Acceleration, Brakes · 130,000 miles · TN · crash · 3 injuries

Tl* the contact owns a 2007 chevrolet impala. The contact stated that while driving approximately 62 MPH, the tire monitoring warning light illuminated and the engine began revving while the cruise control was activated. The brake pedal was depressed but the vehicle accelerated causing the contact to crash into the mile marker signs and a ditch. A police report was filed. The contact sustained a broken rib on the right and neck burn from the seat, front seat passenger sustained a fractured vertebrae in the lower back. The rear driver's side passenger sustained three broken ribs and a bruise on the chest area. All required medical attention. The manufacturer was not notified of the failure. The VIN was unavailable. The approximate failure mileage was 130,000.

Filed Nov 30, 2011 · Electrical, Engine · 95,000 miles · IN

While driving on the interstate, a message was displayed saying "service traction control" and "reduced engine power". I was using cruise control and it shut off after the messages were displayed and I was unable to stay at the speed limit or accelerate quickly if needed. In another incident, I was driving and the two messages displayed and a few minutes later the engine shut off completely. The power steering was not working and the engine was not responding. The only way to get the car running again was to shut it off and wait several minutes until it would start again.

Filed Mar 1, 2010 · Airbags, Brakes · 3,000 miles · CA

Shortly after purchasing the vehicle, electrical system and on-board computer issues started occurring: tire monitor system (TPMS) in-op. Warnings randomly appearing in dash: check tire monitor system. Check left/right rear tire pressure. Tpms did not warn of a flat tire even though a significant amount of air was lost. Increasing no. Of issues with electrical system: keyless entry fails. Check airbag warning appears. Check A/C warning in dash. Ambient temperature gauge erratic. Compass showing n (or ne/nw but always incorrect heading). Cruise control will not resume at times or set incorrect speed (a few m/h higher or lower). Speed has increased on its own. Once, I noticed the speed at over 80m/h when I had set the cruise control at 70. Dash displaying warnings quickly and yellow warning lights flash briefly, which is extremely distracting and warnings cannot be read. Tpms light comes on routinely after driving for 1-3 hours. Warnings may flash at any time. Took the vehicle in six times at the request of gm. Some parts were replaced but electrical issues keep increasing and original issues cannot be fixed. Keyless entry working for now, after components were replaced twice. E-brake did not work when the vehicle was purchased. Though promised by delivery, car had to be taken in five times for e-brake to work modestly. I am not in possession of any old parts as repairs were performed under warranty.

Filed Feb 18, 2010 · Transmission · 111,000 miles · PA

The vehicle was purchased in march 2007 and is used as a commuter car from new oxford, pa to washington, dc daily. I average 750 miles per week. Last fall when the vehicle had just over 90,000 miles, I began having problems first with the cruise control dropping off speed and not resetting. This quickly advanced to a shuttering feel when accelerating and occasionally picking up speed and within 50 miles the car refused to move after a stop light. I turned it off and restarted the engine and after putting it into drive, managed to get it to a nearby former chevy dealer. They determined the transmission was totally slipping and required replacement. Chevy stood by the 100k power-train warranty with a no-cost replacement and installed a new transmission, issuing a 12,000 mi warranty. Today, at 111,000 miles, less than 20,000 into the new transmission, the problem returned. The first time it was on flat ground and I was simply a stalled nuisance in traffic. This time, I was going up a hill and had stopped for a light. The car began to roll back down the hill, I had difficulty braking and nearly got struck by a large truck. It would not move forward until I turned off the engine and then with a thuds and jerks I was able to move it to a safe parking spot. This time I did not have the difficulty with the cruise control but did have a bit of what I now recognize was transmission slip but I attributed to the anti-slip brakes on ice. This happened a couple of times. From the early shudders, less than 400 miles elapsed. I was fortunate both times.

Filed Jul 18, 2007 · Acceleration · 4,700 miles · IL

Tl*the contact owns a 2007 chevrolet impala. While driving 65 MPH downhill with the cruise control activated, the vehicle automatically accelerated to 85 MPH. The dealer was unable to diagnose the cause of failure. The manufacturer advised the contact to read the owner's manual. The current mileage is 5,300 and failure mileage was 4,700. Updated 08/07/07.