2007 Chevrolet Tahoe Owner's Manual - Page 128

If you shift the transmission out of PARK (P) while the power function is in progress, the liftgate power function will continue to completion. If you shift the transmission out of PARK (P) and accelerate 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 you drive away. Power Liftgate Button Near Liftgate Latch The liftgate can be power closed by pressing the power liftgate button next to the liftgate latch. Press the button a second time during liftgate operation to reverse that operation. The power liftgate my be temporarily disabled under extreme high or low temperatures. If this occurs, the liftgate can still be operated manually. The power liftgate may not operate under low battery conditions. If you power open the liftgate and the liftgate support struts have lost pressure, the lights will flash and a chime will sound. The liftgate will hold open temporarily, then slowly close. See your dealer for service before using the liftgate. 128