Chevrolet Impala collision warning problems

Filed Apr 24, 2022 · Driver assistance, Electrical · MI

Service blind spot detection system alert come on i took it to the dealership and paid 95.00 to diagnosis they wanted 1900.00 to fix the problem 2 weeks later while waiting for an appointment the entire system is failing Forward collision warning, Lane departure warning ,and Parking collision warning. the dealer now wants another 95.00 to re-diagnosis seeing as only the blind spot was the only warning at first. I'm being told this could lead to the vehicle shutting down even while driving

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 Dec 6, 2019 · Electrical, Lights · NV

The collision warning system activates while driving, electrical failures cause components to not work and flicker of turn signals in passenger mirror .

Filed Jun 23, 2019 · Electrical · 52,254 miles · WI

Blind zone alert message is displayed on the driver instrument cluster (dic) due to water intrusion. Chevrolet is replacing the part(s) under warranty but the part(s) are currently not available and have been on back-order for several weeks. The following three (3) safety functions are not operating: "rear cross traffic alert", "rear park assist" and "lance change alert with side blind zone alert". Also have noticed the "forward collision warning alert" is not functioning. Gm customer care states the part(s) are on order. Estimated delivery time is unknown.

Filed Apr 12, 2019 · Electrical · 41,600 miles · WI

I was driving on 2-lane road and the right side detection system (sds) indicator light in the side mirror came on even when there were no cars or objects next to me. The indicator light would not turn off even when the car was off and parked. No warning messages came up when the car was started. I turned the sds and park assist off in settings, but the light remained on. I removed fuse 62 (rear camera/park assist/side blind zone alert) in the engine compartment fuse block to get the light off. I reinstalled the fuse and the light remained off until the next time I started the car and it turned back on and stayed on. A few days later I got a warning message to service the sds when I started my car. The blind zone alert system indicator lights did not come on and the system did not work at all even when vehicles were in my blind spot on the left or right side of my car. I received 3 warning messages when I started my car. They said to service front camera, park assist and sds. Fuse 62 was blown. I replaced the fuse and it immediately blew again. None of the driver assist systems worked including the side blind zone alert, lane departure warning, forward collision alert system, park assist and rear cross-traffic alert. I took my car to lake geneva chevrolet dealership. They diagnosed the problem, which required removing the rear bumper to check the 2 sbza modules mounted on the inside corners of the bumper. They discovered corrosion in both modules due to water intrusion, which shorted out the electronics. They said it was caused by water on the module seam getting into it by freeze thaw. They had to replace both modules for a total cost including labor of $1172. They stated that it will happen again since it is the same module design and due to the mounting location. Chevy has know about this since before 5-2017 when they issued tsb# 17-na-154 about exact problem.

Filed Oct 10, 2018 · 1,200 miles · NY

The forward collision alert system which is stated to work over 40 MPH does not give adequate warning at any setting. The system shows a green icon when following another vehicle. The icon changes to amber when following another vehicle extremely close (way too close) as a tailgating alert. It is meant to give a heads ups flashing red display on the windshield when overtaking another vehicle at a speed that may cause a collision. This system has a near. A medium and a far setting which is supposed to function within 194 ft. At no setting approaching a vehicle from the rear to a dangerously close point could I get the system to give a red alert, this was on the far setting. The dealer service checked the system in the garage and said it was working. They would not do a road check because it is too dangerous. The service manager said he had done them in the past and the red alert only happens when you are extremely close to the car ahead. In a controlled check I got to within a cars length overtaking the car ahead with no alert and this was on the far setting. This system is useless without giving an alert in time to react. I have seen this system work well in other brand cars.

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.