How to reset a 2021 Chevy Silveraldo after recharging a drained battery.
10

Asked by Rendragfarm Feb 02, 2021 at 08:25 PM about the 2021 Chevrolet Silverado 2500HD LT Crew Cab 4WD

Question type: Maintenance & Repair

After heated blanket in back seat drained the battery, we were able to recharge.  Unfortunately, the driver window will not work, the cab temperature control will not turn on nor will the front heated seats function.

3 Answers

F_O_R answered 3 years ago

Take it to your dealer. Don't you love all this electronic crap?

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Rendragfarm answered 3 years ago

Mark, thank you, so you don't think this will just need reset? I tried ONSTAR, and they said everything else looks good (engine, transmission, etc) but they can't help on this and stated the same thing you said. I'll probably end up at the dealer.

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157,615

James answered 3 years ago

If the battery was completely dead the computers probably need to be flashed (programmed). On many newer vehicles the computers must be powered up all the time. Otherwise they "forget" important things! Hope that helps! Jim

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