Traction Control System (Tcs)/Stabilitrak ® Light; Tire Pressure Light - GMC Yukon 2012 Owner's Manual

5-26 Instruments and Controls
Traction Control System
®
(TCS)/StabiliTrak
The TCS/StabiliTrak light comes on
briefly when the engine is started.
If the light does not come on or
stays on, have the vehicle serviced
by the dealer. If the system is
working normally, the indicator light
turns off.
If the light comes on and stays on
while driving, and a message
displays in the Driver Information
Center (DIC), have the vehicle
serviced by the dealer. See Ride
Control System Messages on
page 5 43 for more information.
If the light flashes while driving, this
means that StabiliTrak or TCS is
Light
assisting in controlling the vehicle.
See StabiliTrak
page 9 46 for more information.

Tire Pressure Light

For vehicles with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the engine is
started. It provides information
about tire pressures and the TPMS.
®
System on
I n f o r ma t i o n P r o v i d e d b y :
When the Light Is On Steady
This indicates that one or more of
the tires are significantly
underinflated.
A Driver Information Center (DIC)
tire pressure message may also
display. See Vehicle Messages on
page 5 37 for more information.
Stop as soon as possible, and
inflate the tires to the pressure value
shown on the Tire and Loading
Information label. See Tire Pressure
on page 10 56 for more information.
When the Light Flashes First and
Then Is On Steady
If the light flashes for about a minute
and then stays on, there may be a
problem with the TPMS. If the
problem is not corrected, the light
will come on at every ignition cycle.
See Tire Pressure Monitor
Operation on page 10 59 for more
information.