GMC 2007 Yukon XL Owner's Manual page 350

Traction Control Operation
The traction control system is part of the
®
StabiliTrak system. Traction control limits wheel
spin by reducing engine power to the wheels
(engine speed management) and by applying
brakes to each individual wheel (brake-traction
control) as necessary.
The traction control system is enabled
automatically when you start your vehicle. It will
activate and the StabiliTrak
it senses that any of the wheels are spinning or
beginning to lose traction while driving. If you turn
off traction control, only the brake-traction
control portion of traction control will work. The
engine speed management will be disabled. In this
mode, engine power is not reduced automatically
and the driven wheels can spin more freely.
This can cause the brake-traction control to
activate constantly.
Notice: If you allow the wheel(s) of one axle to
spin excessively while the StabiliTrak
and brake warning lights and the SERVICE
STABILITRAK message are displayed, you
could damage the transfer case.
350
®
light will flash if
®
, ABS
The repairs would not be covered by your
warranty. Reduce engine power and do not spin
the wheel(s) excessively while these lights and
this message are displayed.
The traction control system may activate on
dry or rough roads or under conditions such as
heavy acceleration while turning or abrupt
upshifts/downshifts of the transmission. When this
happens, you may notice a reduction in
acceleration, or may hear a noise or vibration.
This is normal.
If your vehicle is in cruise control when the system
activates, the StabiliTrak
cruise control will automatically disengage.
When road conditions allow you to use cruise
again, you may re-engage the cruise control.
See Cruise Control on page 196.
®
StabiliTrak may also turn off automatically if it
determines that a problem exists with the system.
If the problem does not clear itself after restarting
the vehicle, you should see your dealer for
service.
®
light will flash and the