GMC Yukon Denalid Owner's Manual page 351

Traction control and StabiliTrak
on by pressing and releasing the StabiliTrak
button if not automatically shut off for any other
reason.
When the TCS or StabiliTrak
®
off, the StabiliTrak light and the appropriate TCS
®
off or StabiliTrak off message will be displayed
on the DIC to warn the driver. Your vehicle will still
have brake-traction control when traction control
is off, but will not be able to use the engine speed
management system. See "Traction Control
Operation" next for more information.
When the traction control system has been turned
off, you may still hear system noises as a result
of the brake-traction control coming on.
®
can be turned
®
®
system is turned
It is recommended to leave the system on for
normal driving conditions, but it may be necessary
to turn the system off if your vehicle is stuck in
sand, mud, ice or snow, and you want to
"rock" your vehicle to attempt to free it. It may also
be necessary to turn off the system when driving
in extreme off-road conditions where high
wheel spin is required. See If Your Vehicle is
Stuck in Sand, Mud, Ice, or Snow on page 390.
When the transfer case is in 4LO, the stability
system is automatically disabled, the StabiliTrak
light will come on and the STABILITRAK OFF
message will appear on the DIC. Both traction
control and StabiliTrak
in this condition.
®
are automatically disabled
®
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