GMC Terrain: Front Seats / Manual Reclining Seatbacks
Warning
If either seatback is not locked, it
could move forward in a sudden
stop or crash. That could cause
injury to the person sitting there.
Always push and pull on the
seatbacks to be sure they are
locked.

To recline a manual seatback:
- Lift the lever.
- Move the seatback to the
desired position, and then
release the lever to lock the
seatback in place.
- Push and pull on the seatback
to make sure it is locked.
To return the seatback to the upright
position:
- Lift the lever fully without
applying pressure to the
seatback, and the seatback will
return to the upright position.
- Push and pull on the seatback
to make sure it is locked.
Lumbar Adjustment
If equipped, press and hold the front
or rear of the control to increase or
decrease lumbar support.
Reclining Seatbacks
Warning
Sitting in a reclined position when
the vehicle is in motion can be
dangerous...
To adjust a power seatback,
if available:
Tilt the top of the control
rearward to recline.
Tilt the top of the control forward
to raise.
..
Other information:
Warning
You can lose control of the
vehicle if you try to adjust a driver
seat while the vehicle is moving.
Adjust the driver seat only when
the vehicle is not moving.
To adjust the seat position:
Pull the handle at the front of
the seat cushion to unlock it.
Move the seat forward or
rearward and release the
handle.
Try to move the seat back and
forth to be sure it is locked in
..
HDC can be used when driving
downhill. It sets and maintains
vehicle speed while descending a
very steep incline in a forward or
reverse gear.
The HDC switch is on the center
console.
Press to enable or disable HDC.
Vehicle speed must be below
50 km/h (31 mph).
The HDC light displays on the
instrument cluster when enabled.
HDC can maintain vehicle speeds
between 3 and 22 km/h (2 and
14..