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Re: 2020 gmc sierra or chevy silverado how to get into neutral
Posted to Technical Discussion Forum on 1/25/2021

Those park brakes do not release with the pull tag or without a battery, just like the chevs and chryos and mercedes. But they can be manually released from underneath.

There is no short cut on those. So you need a scan tool or have battery power to the syste... Login to read more.