As GM Authority has been closely following, several General Motors vehicles were having an issue where the battery was being drained following an over-the-air (OTA) software update. The 2024 Chevy Blazer EV is now part of that group, and The General has released a Customer Satisfaction Program for the 2024 Blazer EV designed to address this inconvenience.
Tagged with bulletin number N232428190, this fix is designed for Blazer EV units that are found to be draining their 12-volt batteries. To this end, certified GM technicians are to reprogram several modules, including the Battery Energy Control Module, Brake System Control Module, and Serial Data Gateway Module.
It’s worth noting that it should take certified GM techs just over an hour to compete this Customer Satisfaction Program.
Of course, the Chevy Blazer EV isn’t the only vehicle to be affected by this issue. Notably, the Chevy Tahoe, Chevy Suburban, and GMC Yukon also received a Customer Satisfaction Program to fix this inconvenience back in July 2022, while the 2023 Chevy Colorado and 2023 GMC Canyon received one in July 2023. In addition, the Cadillac Lyriq was also the subject of a battery drain fix in August 2023.
In the case of the Lyriq, GM Authority reached out to General Motors for an explanation, who responded with the following:
“Our engineering team is working to learn more about and diagnose the issue to minimize any further potential impact to Lyriq customers. As part of regular vehicle care, Cadillac recommends Lyriq customers keep their vehicles charged to a minimum of 20 percent High Voltage state-of-charge (SOC) and plug their vehicles in to their home charging unit overnight to help maintain 12V battery health.”