2014 Chevrolet Impala: false forward collision warnings

Filed Dec 26, 2020 · Driver assistance, Electrical · 94,000 miles · NY

For the second time since purchasing this vehicle new, the blind spot detection system is failing. When this system fails it slowly takes out the rest of the vehicles electrical systems, even those not related to any collision avoidance system. The first time I had it repaired it was out of the original warranty meaning I had to pay the approx. $1000 bill. A year or so later received a letter from gm saying that that repair would now be covered up to 6 years/80,000 mile and if I had already paid for such repair that I could file a claim and they would reimburse me for the previous work. Well amazingly they reimbursed me for the first repair, which was great! Except now, the same exact thing has happened again and I am now past the 6 year 80,000 mile mark. Gm needs to redesign this system to not be placed in high moisture areas or at the very least have a module/connector that is not susceptible to water intrusion.

Filed Jun 11, 2018 · Electrical · 48,000 miles · MI

While in motion, 70 MPH with cruise and A/C on, all dash indicators shut off. Cruise shut off as well as A/C. Within a few seconds everything came back on...like I restarted the car. It did that several times in a row and each time every conceivable malfunction indicator illuminated on the dash (cluster panel). All happening while traveling down the highway at 70 MPH. When the dash finally stopped this cycling, it left the car without any indicators (speed, tach, fuel, etc)...they were all on zero. Fortunately, my garmin GPS told me my speed. Things remained that way until I stopped and shut off the car for about an hour. After restarting things were normal, except that my drivers side mirror collision avoidance indicator remained on. That indicator remains on 24/7...even when the car is off and parked overnight. I finally had to remove the fuse to get it to shut off. I leave the fuse out all the time now. The erratic dash board trouble had happened one other time previously. The mirror anti collision indicators had been malfunctioning for about three months prior to the erratic dash board incidents.

Filed Dec 22, 2014 · Electrical · 5,100 miles · MI

The vehicle is equipped with a vehicle collision warning device that is intended to warn the driver of a vehicle in front that you are to close to and closing range without braking. On about 1/2 dozen occasions the vehicle's early detection system has engaged without any vehicles in front. These occurrences seem to be on days when it is raining and their are reflections off the road, or very sunny days (again causing reflections). The flashing light, loud alarm, and interruption with regular audio is very jarring (scary). On one occasion I applied my brakes very hard because of the alarm (but there was no car in front) - this almost caused the car behind to hit me. The system should be disengaged to prevent a false/positive alarm. I have taken it for service and contacted general motors without results.

Filed Sep 2, 2014 · Acceleration, Electrical · 300 miles · MI

Forward collision avoidance system inappropriate activation on several occasions at different locations. There were no other vehicle in front. There were three beeps/red light flash on windshield. The cruise control would deactivate and car would decelerate by three to five mile. The tail lamps are not activated to warn drivers following. This is my second complaint the dealer solution is to turn off the feature. It work when it should the inappropriate activation is a nuisance.

Filed May 18, 2014 · Electrical · 800 miles · MI

Experience on multiple occasions the forward collision avoidance activation of a flashing a red light from dash into the front windshield and sounding an alarm with three or four beeps. Referring to this as phantom braking activated by the forward collision avoidance system causing autonomous brake activation and the cruise control disengagement. It is unknown if the activation of brake lamps occur I hope they work when this happen. My service manager suggestion is to deactivate feature. Chevrolet customer assistance center 71-1299424541 me back to the dealer with no solution/explanation.

Filed Apr 23, 2014 · Acceleration, Brakes · 11,250 miles · TX

While driving on texas highway 287, southbound, my anti-collision alert system activated. It sounded a loud beeping, followed by a full application of all brakes. Startled, I was able to apply the accelerator pedal to resume my speed. Approximately 5 miles further, the incident repeated it self. During the first incident, there were no vehicles in front of me, none. The road was dry, straight and free of any obstacles. There was no traffic behind me. The second time the car automatically locked up my brakes, there was a car behind me, but he was able to swerve and avoid rear-ending me. Again, there was no traffic of any type ahead of me and the road was flat, dry and straight. Again I was able to apply the accelerator pedal to regain control of the car and pull over to the side where I .shut off the engine. I restarted the engine and proceeded to my destination in springtown, texas without further incident. I took the car to the dealership the next week for a diagnostic search and repair of the incident. They had the car for three days and told me nothing was wrong with the car. I'm filing this complaint, because I believe that this is a potential deadly threat to me, my passengers, or other drivers.

Filed Apr 23, 2014 · Electrical · 1,000 miles · OH

Tl* the contact owns a 2014 chevrolet impala. The contact stated that while driving 55 MPH, the front collision alert warning lamp illuminated followed by a beeping alarm. The contact mentioned that every time the failure occurred there was never a vehicle in front of it. The vehicle was not taken to the dealer. The manufacturer was made aware of the failure. The vehicle was not repaired. The VIN was not available. The failure mileage was 1,000 and the current mileage was 2,000.