GMC 2010 Canyon Crew Cab Owner's Manual page 137

n
4 (Four-Wheel Low): This setting also engages the
front axle to give you extra traction. It sends the maximum
power to all four wheels. You might choose four-wheel
low if you were driving off-road in sand, mud, or deep
snow and while climbing or descending steep hills.
Shifting into Four-Wheel Low will turn Traction Control
®
and StabiliTrak off. See Traction Control System (TCS)
on page 5-8 and StabiliTrak
more information.
Indicator lights in the buttons show you which setting you
are in. The indicator lights will come on briefly when you
turn on the ignition and one will stay on the selected
setting. If the lights do not come on, you should take the
vehicle in for service. An indicator light will flash while
shifting. It will stay on when the shift is completed.
If the transfer case does not shift, it will return to the last
chosen setting.
®
System on page 5-6 for
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 the 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 R (Reverse) and D (Drive), for an
automatic transmission, or R (Reverse) and 1 (First) for
a manual transmission to have the light stop flashing.
3-27