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:
Questions and Answers About Safety Belts
Q: Will I be trapped in the vehicle after a crash if I am wearing a safety belt?
A: You could be — whether you are wearing a safety belt or not.
Your chance of being conscious during and after a c ...
Turning the System On and Off
The URPA system can be turned on and off using the infotainment system controls.
See Vehicle Personalization on page 5‑33 for more information.
When the system is off, PARK ASSIST OFF display ...
Unable to Connect to OnStar Message
If there is limited cellular coverage or the cellular network has reached maximum capacity, this message may come on. Push to try the call again or try again after driving a few miles into another ce ...