Drive Systems; Four-Wheel Drive - GMC Yukon XL 2015 Owner's Manual

Drive Systems

Four-Wheel Drive

If equipped, four-wheel drive
engages the front axle for extra
traction. Read the appropriate
section for transfer case operation
before using.
Caution
Driving on clean, dry pavement in
four-wheel drive for an extended
period of time may cause
premature wear on the system.
The damage would not be
covered by the vehicle warranty.
Driving on clean, dry pavement in
four-wheel drive may:
Cause a vibration to be felt in
the steering system.
Cause tires to wear faster.
Make the transfer case harder to
shift, and cause it to run noisier.
Warning
Shifting the transfer case to
N (Neutral) can cause the vehicle
to roll even if the transmission is
in P (Park). You or someone else
could be seriously injured. Be
sure to set the parking brake
before placing the transfer case in
N (Neutral). See Parking Brake on
page 9-42.
Caution
Extended high-speed operation in
4 may damage or shorten the
life of the drivetrain.
Engagement noise and bump when
shifting between 4 and 4 or from
N (Neutral), with the engine running,
is normal.
Driving and Operating
Shifting into 4 will turn Traction
Control and StabiliTrak
Traction Control/Electronic Stability
Control on page 9-44.
Two Speed Automatic
Transfer Case
Use the transfer case knob next to
the steering wheel to shift into and
out of four-wheel drive.
Indicator lights display which setting
the transfer case is in. N (Neutral) is
indicated on the knob. The indicator
lights will display briefly when the
9-37
®
off. See