2018 BUICK ENVISION Electrical System Problems

Multiple Electrical parts became faulty starting with 3 tire sensors, then the front passenger airbag sensor, immediately followed by both rear sensor control modules. Milage at onset was approx 85000. Brought to dealer for dx due to my vehicle applying breaks when it shouldn’t, when auto start/stop was still on, the vehicle powersteering would stop working intermittently when going from a stopped position in drive to accelerating. Dealership ran diagnostics and determined the air bag control module is faulty and requires replacement of the entire seat to replace the sensor, as well as both rear sensors need to be replaced . This vehicle has been in no accidents. I had a second opinion completed with the same diagnosis. Now today- my OnStar system began blinking red and forcefully called OnStar twice. I spent over a half hour on the phone while they tried to reset the system and the car...

The Instrument Panel Cluster failed and is completely gone black. Due to the failure, there is no speedometer, or other safety notifications being delivered to the driver. The lack of knowing your current speed, the speed cruise control is set at, along with zero safety notifications is a huge safety issue for the driver and passengers, other vehicles on the road and pedestrians, etc. All of the alert features failed, including the forward collision warning, parking collision warning, lane keeping assistance, etc. The component was inspected by the GMC dealer's shop the vehicle was purchased through, along with another GMC certified shop. There were zero warning lamps, message or other symptoms of the problem prior to the failure. After reading numerous on-line Buick/GMC forums, it appears this same issue has been prolonged and on-going across multiple Buick years, makes and models.

Every time the car auto stops and turns back on the steering locks. So when the car starts you can’t turn the wheel. Also, while driving the car will lock and radio will shut off/ turn on. This happens like 1 to 2x a week. It is available for inspection. It could be very dangerous for me and others for needing to turning into places or even turning down the road. It hasn’t been confirmed or inspected, yet. There is only one warning lamp that flashes on for a split second, it’s no t/c. It just started flashing 3/26/23 not prior to incidents.