GMC SIERRA 2020 Owner's Manual page 34

To lower the tailgate step, press
the button at the center of the
step. Make sure it lowers to the
fully open position.
To close the tailgate step, lift it
firmly. Make sure that both side
latches are engaged.
Do not place a load on top of the
step when using it as a load stop.
Using the Assist Handle
Keys, Doors, and Windows
The assist handle helps with
entering the pickup box. To use:
1. Lift up on the handle until it
locks in the open position.
2. To return the assist handle, pull
the release lever toward the
ball end of the handle and push
the handle back to the closed
position.
Applying Loads to Tailgates
Caution
Do not put ramp loads on the
inner tailgate alone. Damage to
the inner tailgate may occur.
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