Black plate (45,1)
GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
Driving and Operating
9-45
When the transfer case is in 4LO,
the stability system is automatically
disabled, the StabiliTrak light comes
on, and the appropriate message
will appear on the DIC. Both traction
control and StabiliTrak are
automatically disabled in this
condition.
Traction Control Operation
The TCS 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 TCS is enabled automatically
when the vehicle is started. It will
activate and the StabiliTrak light will
flash if it senses that any of the
wheels are spinning or beginning to
lose traction while driving. If traction
control is turned off, 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 the wheel(s) of one axle
is allowed to spin excessively
while the StabiliTrak
®
, ABS, brake
warning lights, and any relevant
DIC messages are displayed, the
transfer case could be damaged.
The repairs would not be covered
by the vehicle warranty. Reduce
engine power and do not spin the
wheel(s) excessively while these
lights and messages are
displayed.
The TCS 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, a reduction in acceleration
may be noticed, or a noise or
vibration may be heard. This is
normal.
If cruise control is being used when
the system activates, the StabiliTrak
light will flash and cruise control will
automatically disengage. Cruise
control may be reengaged when
road conditions allow. See
Cruise
Control on page 9
‑
46
.
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, see your
dealer for service.
Vehicles with StabiliTrak have a
Trailer Sway Control (TSC) feature.
See
Trailer Sway Control (TSC) on
page 9
‑
80
.
Vehicles with StabiliTrak have a Hill
Start Assist (HSA) feature. See
Hill
Start Assist (HSA) on page 9
‑
42
.
Adding non-dealer accessories can
affect the vehicle's performance.
See
Accessories and Modifications
on page 10
‑
3
.
Summary of Contents for 2013 GMC Sierra Denali
Page 30: ...Black plate 24 1 GMC Sierra Denali Owner Manual 2013 2nd Edition 8 27 12 1 24 In Brief 2 NOTES...
Page 166: ...Black plate 10 1 GMC Sierra Denali Owner Manual 2013 2nd Edition 8 27 12 6 10 Lighting 2 NOTES...
Page 347: ...Black plate 35 1 GMC Sierra Denali Owner Manual 2013 2nd Edition 8 27 12 Vehicle Care 10 35...
Page 470: ...Black plate 14 1 GMC Sierra Denali Owner Manual 2013 2nd Edition 8 27 12 i 14 INDEX 2 NOTES...
