Chevrolet Tahoe Owner's Manual page 45

The power liftgate may be
temporarily disabled under extreme
temperatures, or under low battery
conditions. If this occurs, the liftgate
can still be operated manually.
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.
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 5-39. 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.
Keys, Doors, and Windows
Manual Operation of Power
Liftgate
To change the liftgate to manual
operation, press OFF on 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.
If on the RKE transmitter or
on the liftgate is pressed while
power operation is disabled, the
lamps will flash three times, but the
liftgate will not move.
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