My 2014 LTZ 2LZ will randomly sound the collision alert even if there are no cars on the road in front of me. I get more false alarms than anything and it is rather annoying. Just hope it works when and if I ever need it to do so!
Tonight, while driving my wife’s 2014 Impala 2LTZ, the system began giving false warnings. No vehicles or objects within 500 feet of the front of the car - at speeds about 35 mph. Intermittently, a green auto icon would appear, then disappear, at the bottom of the center DIC.
My wife said the system began giving intermittent false warnings in the past week or so. She forgot to tell me.
Ironically, about two weeks ago, the DIC began displaying “service rear detection” (or something similar) when stopped and shifting into reverse. It occurred more when the car had been driven in the rain.
We left the car for three days at the Chevrolet dealer where we bought the car. They claimed that they “reset the ECM” and that fixed the system.
I had received a letter from GM extending the warranty on the rear detection system for 8 years or 100,000 miles (at no cost). I also have the GM Platinum zero-deductible extended warranty. I told the service advisor, and he claimed he was unaware of the extended warranty letter.
I suspect the malfunctioning forward alert system is tied to the malfunctioning rear detection system. Time will tell.
I hate going to dealers, I hate leaving my car for so long with no resolution, and I hate dealers that don’t do the job right. Rant over.