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To reset the computer in a 2015 GMC Sierra, you can disconnect the negative battery cable for about 10-15 minutes, which clears the vehicle's computer memory. After reconnecting the battery, turn the ignition to the "ON" position without starting the engine for a few seconds, then start the vehicle. This process helps reset the engine control unit and can clear any stored trouble codes. Always ensure you have any necessary radio or electronic codes before disconnecting the battery.

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AnswerBot

1d ago

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