Power drained on 2006 envoy

I lost all power and had to be towed. Dealer cannot find problem, no codes. Park vehicle for 8 hours and tried to start it but battery was dead. Anyone with similiar problems with solutions!

I had the same thing happen twice on my '05 Isuzu Ascender, which is the same thing as an Envoy. Happened at a state park in the middle of nowhere, not good. I replaced the battery with an interstate and it seems to be running fine now.

I had the same thing happen twice on my '05 Isuzu Ascender, which is the same thing as an Envoy. Happened at a state park in the middle of nowhere, not good. I replaced the battery with an interstate and it seems to be running fine now.



I had a problem with my battery dieng every night so I took it to the dealer and they kept it for three days cause they couldnt' find it.The Veh computers were turning on in the middle of the night draining the battery.They replaced the Passinger door module and it fixed it.:naughty: