2012 GMC Acadia Owner's Manual - Page 43

Keys, Doors, and Windows With the liftgate in manual mode and all of the doors unlocked, the liftgate can be manually opened and closed. To open the liftgate, press the touch pad on the outside of the liftgate handle and lift up. Use the pull handle to lower and close the liftgate, the liftgate latch will power close. Always close the liftgate before driving. 2-13 Vehicle Security This vehicle has theft-deterrent features; however, they do not make it impossible to steal. theft-deterrent alarm is not armed until the security light goes off. If the delayed locking feature is active, the alarm is not activated until all doors are closed and the security light goes off. . Anti-theft Alarm System On vehicles with an anti-theft alarm system, to activate the system: . 8 on the RKE transmitter or the l on the liftgate is pressed while If in manual operation mode, the taillamps will flash three times, but the liftgate will not move. It is not recommended to drive with the liftgate open. However, if the vehicle must be driven with the liftgate open, the liftgate should be set to manual operation. Press Q on the Remote Keyless Entry (RKE) transmitter or the power door lock switch when any door is open. Press Q when the driver door is closed. The security light comes on solid for approximately 30 seconds and then goes off. The content theft-deterrent alarm is not armed until the security light goes off. The theft-deterrent system will not activate if the doors are locked with the vehicle's key or the manual door lock. The security light flashes. When the door is closed, the security light stops flashing and stays on solid for approximately 30 seconds. The content If a locked door is opened without using the RKE transmitter, a 10-second pre-alarm occurs. The horn chirps and the lights flash.