GMC 2012 Terrain Owner's Manual page 44

2-12 Keys, Doors, and Windows
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 29. 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.
Power Liftgate 3/4 Mode
To program the liftgate opening
height:
1. Turn the liftgate switch to either
the MAX , or the 3/4 mode
position and power open the
liftgate.
2. Stop the liftgate movement at
the desired height by pressing
any liftgate switch. Manually
adjust the liftgate position if
required.
3. Press and hold the button on the
liftgate adjacent to the latch until
the turn signals flash and a beep
sounds to indicate that the new
setting is recorded.
When power opened with the 3/4
mode selected, the liftgate stops at
the new set position.
I n f o r ma t i o n P r o v i d e d b y :
If there is no audible and visual
feedback when setting the
intermediate stop position, the
liftgate height is being set below the
3/4 open height minimum
(approximately 1.5 m or 5 ft). The
liftgate cannot be set below that
minimum and the new setting will
not be recorded.
Manual Operation of Power
Liftgate
To change the liftgate to manual
operation, turn the mode switch to
the OFF position.
With the power liftgate disabled and
all of the doors unlocked, the liftgate
can be manually opened and
closed. Manual operation of a
liftgate that also has power
operation requires more effort than
a standard manual liftgate.