2018 Chevrolet Bolt electrical system problems

“HMI module failed. Distraction from road because the display pops on and off. Im not taking in my car because there are forums and forums discussing this issue. Not inspected by anybody either. There were no warnings, it just stopped working 2 weeks ago.”

“The radio antenna/receiver/reception in my 2018 Chevy Bolt is very poor. There are many areas I receive almost no radio stations, or stations are extremely fuzzy. The reception is getting worse over time. In searching for a solution to this, I have found that there are many accounts, complaints, and forums related to this issue in all model years of this vehicle. The greater community has not found a viable solution outside of buying a separate radio and hooking it up to the auxiliary input. Many others have brought their vehicle to get inspected repaired and told by the dealers that everything is functioning as it should. The quality and operation of this part pales in comparison to all other vehicles and devices I, and others as they describe, have owned. Understanding this is not a "life and death" safety concern, I hope that this issue can be addressed. This is a basic piece of equipment found in all vehicles, and it is important to have access to at minimum public radio in order to receive potential emergency alerts. It seems chevy has done a disservice to their customers in their failure to provide a properly functioning basic component in these vehicles.…”

“The contact owns a 2018 Chevrolet Bolt EV. The contact stated that after the dealer performed the recall repair under NHTSA Campaign Number: 21V560000 (Electrical System), the new battery charge range allowed for up to 90 miles, whereas the older battery allowed for up to 150 miles before recharging. Additionally, the new battery failed to retain a complete charge, with the "Unable to Charge" message displayed while charging. The contact felt that the recall remedy was not a permanent fix but a temporary repair. The dealer was made aware of the failure; however, the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 60,000.”

“Dealer will not do recall : (The high voltage batteries in these vehicles may pose a risk of fire when charged to full, or very close to full, capacity. General Motors said that the bottom of the battery tray is damaged.”

“The battery in this vehicle was replaced pursuant to the current recall at the Morehart Murphy dealership in Durango, CO about two(2) months ago. On approximately June 5, 2022, the car began showing a "Propulsion Power Is Reduced" warning, despite the fact that the battery was approximately 3/4 fully charged and showing a range of 248 miles. We made arrangements to take the car into the dealership on June 9, 2022. Once the car was at the dealership, the EV technician reported that the dealership had just received a bulletin from GM about this problem on that same day, that the problem was with the replaced battery, that GM engineers were working on the problem, that the car was not safe to drive, and that the car would have to be left with the dealership until a solution was found. We have heard nothing from the dealership since that time. I called the dealership this morning (June 20, 2022). The dealership advised that GM had not responded to the calls from the dealership and that no solution to the problem has been offered. The dealership suggested that I call GM directly and "raise a stink." I called GM this morning and reported the problem. GM offered no…”

“The contact owns a 2018 Chevrolet Bolt EV. The contact received notification of NHTSA Campaign Number: 21V560000 (Electrical System). The contact stated that the battery power had decreased by 25 percent. There were no warning lights illuminated. The contact called the local dealer and was informed that the battery was on back order. The vehicle was not diagnosed or repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was contacted but no assistance was provided. The approximate failure mileage was 1. Parts distribution disconnect.”