Just last month, GM Authority reported on an issue affecting the Cadillac Lyriq (as well as several other GM vehicles) wherein an over-the-air (OTA) software update would leave the vehicle’s infotainment system hanging, draining the 12-bolt battery. Now, GM has issued a new Customer Satisfaction Program intended to address the 12-volt battery drain issue affecting the Cadillac Lyriq.
The new Customer Satisfaction Program is tagged with bulletin number N232416980, and affects the 2023 and 2024 model years for the all-electric Cadillac Lyriq luxury crossover.
GM stipulates that the battery drain issue is not directly related to any over-the-air updates, per se. Rather, the issue is a glitch that leaves the downloaded update hanging. The new Customer Satisfaction program indicates that certain 2023 and 2024 model year Cadillac Lyriq vehicles may have a condition where the 12 volt battery has almost discharged or is at an increased risk of accelerated discharge.
In order to address this issue, dealers are instructed to disconnect, then reconnect the 12-volt battery, then reprogram the serial data gateway. Only Cadillac dealers who have met EV Readiness Requirements are allowed to complete this Customer Satisfaction Program, while the technician must have successfully completed the required training.
Last month, GM Authority covered how several Cadillac Lyriq owners have reported that the 12-volt battery in their crossover was turning up completely drained. The issue is similar to that reported by 2023 Chevy Colorado and 2023 GMC Canyon owners, once again likely the result of a failed software update.
GM Authority reached out to GM for an explanation, and in response, a Cadillac spokesperson issued the following response:
“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.”