2017 CHEVROLET VOLT Back Over Prevention Warnings Problems

Currently, two two issues are ongoing with my 2017 Chevrolet Volt Premier. I took my Volt to Epic Chevrolet in Sacramento, CA, on August 9, 2024, because the "Propulsion Power Is Reduced" warning and the "Service Park Assist System" warning came on with the "Check Engine" light. After diagnosis I was informed that the "EGR Valve" has failed; however, Chevrolet cannot procure the EGR Valve to repair my Volt and it is now October 14. I have been coordinating with Chevrolet Customer Assistance who continue to inform me that they are looking for the part but cannot provide it - apparently this part has been redesigned. This is the third time in 12 months that the Volt has been in for repair, all under warranty, for charging and propulsion related issues. On August 23, 2023, the Volt was in the shop for 15 days getting the "Battery Energy Control Module"...

This vehicle has a “Shift to Park” issue which is well established all over the internet. I’m afraid to walk away from the vehicle when that message pops up. Seems to be something that could injure/kill someone if the car cannot be left in park safely. This has been an ongoing/intermittent issue for months. The date stated below only represents today’s date of report.

Parking sensors malfunction often and error "service park assist". Sometimes when someone is less than 500 feet away and turning the car slams on the brakes which points to a radar issue. Also sometimes the adaptive cruise doesn't work (Windshield is clean) so we are without cruise control. Happened twice on a cross country trip.