- Buick Ownership
When I put the summer tires on, I turned the ignition on to see the tire pressures on the DIC, and walked off with the ignition on. 25 minutes later, I got an onstar email saying my battery was critically low. I'd expect rather more than 25 minutes of reserve capacity, so I assume the battery is approaching the end of life. Is there a preferred replacement? It's a 94R AGM, right?