GM Owner Manuals - Buick

Traction Control System (TCS)
Warning Light
Your vehicle has
a Traction Control
System (TCS)
warning light.
If this warning light comes on and stays on, there may
be a problem with the TCS and, if your vehicle has
this feature, the StabiliTrak ® system.
The TCS warning light will come on briefly when the
engine is started. If it does not come on then, have it fixed
so it will be ready to warn you if there is a problem. This
light will also come on when the traction control button is
pressed disabling the system.
If the TCS warning light stays on or comes on while you
are driving, pull off the road as soon as possible and stop
carefully. Try resetting the system by turning the ignition
off then back on. If the light still stays on or comes back
on again while you are driving, your vehicle needs
service. Have the traction control system and, if your
vehicle has this feature, the StabiliTrak ® system
inspected as soon as possible. See Traction Control
System (TCS) on page 4-7 and StabiliTrak ® System on
page 4-6 for more information.
Enhanced Traction System
Warning Light
For vehicles with the
Enhanced Traction
System (ETS), this light
may come on for the
following reasons:
• If the traction control button located on the instrument
panel is pressed, turning the system off. This light will
come on and stay on. To turn the system back on,
press the button again and the warning light should
turn off. See Enhanced Traction System (ETS) on
page 4-8.
• If the system is affected by an engine-related
problem, the system will turn off and the warning
light will come on.
If the light comes on and stays on for an extended
period of time when the system is turned on, the vehicle
needs service.
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