GMC 2008 Canyon - Manual (Page 110)

Shifting from Two-Wheel High to
Four-Wheel High
Press and release the Four-Wheel High button. This can
be done at any speed, and the front axle will lock
automatically.
Shifting from Four-Wheel High to
Two-Wheel High
Press and release the Two-Wheel High button. This can
be done at any speed, and the front axle will unlock
automatically.
It is normal to hear and feel your vehicle’s transfer case
shift into Four-Wheel High. If you shift with the vehicle
stopped, the indicator light may still flash slowly. It may
be necessary to shift the transmission momentarily into
REVERSE (R) and DRIVE (D), for an automatic
transmission, or REVERSE (R) and FIRST (1) for a
manual transmission to have the light stop flashing.
Shifting from Two-Wheel High or
Four-Wheel High to Four-Wheel Low
To shift from Two-Wheel High or Four-Wheel High to
Four-Wheel Low, the vehicle must be stopped or moving
less than 3 mph (5 km/h) with the transmission in
NEUTRAL (N) for an automatic transmission or the
clutch pedal pressed for a manual transmission. The
preferred method for shifting into Four-Wheel Low is to
have your vehicle moving 1 to 2 mph (1.6 to 3.2 km/h).
Press and release the Four-Wheel Low button. You
must wait for the Four-Wheel Low indicator light to stop
flashing and stay on before shifting the transmission into
gear or releasing the clutch pedal.
If the Four-Wheel Low button is pressed when your
vehicle is in gear and/or moving faster than 3 mph
(5 km/h), the four-wheel low indicator light will flash for
30 seconds and not complete the shift.
2-30