Adaptive Cruise Control problems of the 2020 Kia Motor Telluride

The contact owns a 2020 kia Telluride. The contact stated while her grand-daughter was driving with adaptive cruise control (acc) mode set at 40 mph, the vehicle accelerated unintendedly and the steering wheel seized, causing the grand-daughter to lose control of the vehicle. The vehicle crashed into a road sign. The air bags did not deploy. The contact stated that the grand-daughter was able to veer to the side of the road as the steering wheel became operable. The vehicle was towed to an autobody repair shop, who informed the contact that the edr failed to display crash data. The grand-daughter went to the hospital later, and was informed that she had sustained a minor concussion, a disc in the back and the neck. A police report was filed. The dealer and the manufacturer were not notified of the failure, the vehicle was not diagnosed nor repaired. The failure mileage was unknown.

The instrument cluster periodically stops working. The speedometer and tachometer stop working, and all warning lights flash on and off randomly. It shows the doors and hoods opening and closing on the display as well along with other warning lights. The cruse control fails to operate as does the front/side crash warning systems. . . . These warning lights also come on. This is an intermittent problem, it will persist for days and then will stop for part of a day, or multiple days and then return again.

Dash gage cluster (tach, speedometer, fuel, and engine temp) all go to zero while driving. The digital speedometer readout is also zero. Basically the entire dash is dead minus the entertainment system which functions perfectly. This also shuts down all adaptive cruise and collision avoidance systems. Restarting the vehical will not bring dash instruments back. Ocassionally cycling to door locks and or disconnecting negative battery lead will bring dash instruments or they will begin randomly begin functioning again on their own. They always malfunction and come back as an entire cluster. I also have video of the vehical in motion with the instruments dead.

After driving about 10 or 15 minutes both the adaptive cruise control and the forward collision warning system stop operating. Even after you clean off the sensor it does not help. It randomly clears itself, but will also stop again after some time. This happens both on local roads and the highway.