@redline4 Hey Ed, gotta tell ya another Chevrolet story I learned today. Woke up at the motel with a dead battery on the TrailBoss. Luckily a guy was good enough to give me a jump. So I stopped tonight and bought a jump box in case of rinse and repeat. So I'm sitting here looking out the motel and the parking lights flashed 4 times in sequence every 15min. Course I Loogled it. After tire air ups came back and parked it. Of course it is still doing 4 flashes in a sequence every 15min. I gonna go pull the battery cable right now. Any ideas or known issues? Thx man