2012 Chevrolet Tahoe Owner's Manual - Page 49

Keys, Doors, and Windows If the transmission is shifted out of P (Park) while the power function is in progress, the liftgate power function will continue to completion. If the transmission is shifted out of P (Park) and the vehicle accelerates before the power liftgate latches closed, the liftgate may reverse to the open position. Cargo could fall out of the vehicle. Always make sure the power liftgate is closed and latched before driving away. If the liftgate is opened using power operation and the liftgate support struts have lost pressure, the turn signals flash and a chime will sound. The liftgate stays open temporarily, and then slowly closes. See a dealer for service before using the liftgate. 2-13 Obstacle Detection Features If the liftgate encounters an obstacle during a power open or close cycle, a warning chime will sound and the liftgate will automatically reverse direction to the full closed or open position. After removing the obstruction, the power liftgate operation can be used again. If the liftgate encounters multiple obstacles on the same power cycle, the power function will deactivate and a message will display in the Driver Information Center (DIC), see Object Detection System Messages on page 5‑41. After removing the obstructions, the liftgate will resume normal power operation. Pinch sensors are located on the side edges of the liftgate. If an object is caught between the liftgate and the vehicle and presses against this sensor, the liftgate will reverse direction and open fully. The liftgate will remain open until it is activated again or closed manually. Manual Operation of Power Liftgate To change the liftgate to manual operation, press OFFon the liftgate switch. With the power liftgate disabled and all of the doors unlocked, the liftgate can be manually opened and closed. To open the liftgate, press the touch pad on the handle (B) and lift up. Use the pull cup to lower and close the liftgate. Do not press the touch pad while closing the liftgate. This will cause the liftgate to be unlatched. The liftgate latch will power close. Always close the liftgate before driving.