GMC 2004 Canyon - Manual (Page 108)

Shifting from 4LO to 2HI or 4HI
To shift from 4LO to 2HI or 4HI, your vehicle must be
stopped or moving less than 1.2 mph (2 km/h) with
the transmission in NEUTRAL (N) or the clutch pedal
engaged. The preferred method for shifting out of 4LO
is to have your vehicle moving 1.2 mph (2 km/h).
Press and release the 4HI button. You must wait for
the 4HI indicator light to stop flashing and remain
illuminated before shifting your transmission into gear
or releasing the clutch pedal.
If the 4HI button is pressed when your vehicle is in gear
and/or moving, the 4HI indicator light will flash for
30 seconds but not complete the shift.
On vehicles with an automatic transmission, if your
transfer case does not shift into 4HI, your transmission
indicator switch may require adjustment. With your
transmission in NEUTRAL (N), press and release the
4HI button. While the 4HI indicator light is flashing, shift
your transmission into PARK (P). Wait until the 4HI
indicator light remains illuminated before shifting your
transmission into gear. Press the 4HI button again
to complete the shift. This will get you into 4HI, but you
should take your vehicle in for service to restore
normal operation.
Shifting to NEUTRAL
Use NEUTRAL when you plan to tow your vehicle.
See Recreational Vehicle Towing on page 4-47
for towing instructions. To shift the transfer case into
NEUTRAL, set the parking brake, then press and hold
the 2HI and the 4LO buttons at the same time for
10 seconds.
Shifting out of NEUTRAL
After towing your vehicle, you will have to shift out of
NEUTRAL in order to drive. To shift out of NEUTRAL,
do the following:
1. Set the parking brake and apply the regular brake
pedal. See Parking Brake on page 2-29 for more
information.
2. Start a vehicle with an automatic transmission in
PARK (P). Use FIRST (1) for vehicles with a
manual transmission.
3. Put an automatic transmission in NEUTRAL (N) or
press the clutch pedal for vehicles with a manual
transmission.
4. Press the button for the desired transfer case
position (2HI, 4HI or 4LO).
5. Shift the transmission to the desired gear. After the
transfer case has shifted out of NEUTRAL, the
indicator light will go out.
A re-engagement sound is normal when shifting out
of NEUTRAL.
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