NHTSA Complaint #11612681 — 2022 GMC SIERRA 1500

This is the second time after already bringing in for service, while driving turning on the radio the volume goes to full volume with a Bose system it is ear piercing, none of the radio controls worked, I could not shut off the radio or turn the volume down it was locked at full volume. I had to stop in the middle of the road in Cambridge MA, Place in park, shut the engine off and open the drivers side door to shut the radio off, it took four attempts of restarting and stopping vehicle before the volume would return to normal. This is a severe SAFETY HAZARD THAT WILL EFFECT HEARING AND CAUSE AN ACCIDENT, I AM SO FED UP WITH THIS VEHICLE. I need to schedule another appointment for GMC to do nothing.