The Cadillac Lyriq is the luxury marque’s first all-electric vehicle, initially rolling off the line for the 2023 model year. Many Cadillac Lyriq owners have recently complained via social media about an issue that’s draining their vehicle’s 12-volt battery. Now, GM Authority is looking into what’s going on with this new battery-drain issue for the Cadillac Lyriq.
For those readers who may be unaware, several Cadillac Lyriq owners have recently reported that the 12-volt battery in their luxury crossover is turning up completely drained. The issue has cropped up in the past few days, including this past weekend, and is believed to be tied to a failed over-the-air software update that leaves the infotainment system hanging, thus draining the 12-volt battery in the process.
Critically, this issue for the Cadillac Lyriq looks to be similar to an issue reported by 2023 Chevy Colorado and 2023 GMC Canyon owners, as GM Authority covered previously. Just like the Cadillac Lyriq issue, Chevy Colorado and GMC Canyon owners report that the battery in their pickup is turning up drained, likely the result of a failed software update.
GM Authority reached out to General Motors for an explanation. In response, a Cadillac spokesperson sent us the following statement:
“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.”
At this point, it’s unclear if this battery-drain issue affects all Cadillac Lyriq trim levels. It’s also unclear if the vehicle build date is a factor.
Meanwhile, some Cadillac Lyriq owners are suggesting to that those affected by the issue adjust the vehicle settings so that over-the-air software updates are only performed when the vehicle is plugged in.
One owner reports that his bricked Cadillac Lyriq was revived by disconnecting the 12-volt battery for 10 minutes, then reconnecting it. The battery is located under the hood, hidden underneath the plastic paneling.
Notably, when the 12-volt battery is drained on the Cadillac Lyriq, vehicle owners cannot access the vehicle using the key fob, or even pop the hood. Rather, the vehicle can be accessed manually by using the physical key inside the fob and unlocking the liftgate. To note, the keyhole is located just above the license plate.