Manual Liftgate
To unlock the liftgate, press the power door lock switch or press 
on the Remote Keyless Entry (RKE) transmitter twice.
See Remote Keyless Entry (RKE) System Operation on page 2‑3.
To open the liftgate, press the touch pad under the liftgate handle and lift up. The vehicle must be in P (Park) and the battery must be charged.
Use the pull handle to lower and close the liftgate.
Always close the liftgate before driving.
See also:
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OnStar Personal Identification Number (PIN)
A PIN is needed to access some of the OnStar services, like Remote Door Unlock
and Stolen Vehicle Assistance. You will be prompted to change the PIN the first
time when speaking with an Advisor. T ...
Recommended Transfer Case Settings
Notice: Driving on clean, dry pavement in four-wheel drive for an extended period of time can cause premature wear on the vehicle's powertrain. Do not drive on clean, dry pavement in Four-Wheel Driv ...