OnStar
Keys and LocksTraction Off Light
This light comes on briefly while starting the engine. If it does not, have the
vehicle serviced by your dealer. If the system is working normally, the indicator
light then turns off.
The traction off light comes on when the Traction Control System (TCS) has been
turned off by pressing and ...
Tread Wear Indicators Description
The original equipment tires have tread wear indicators that show when you should
replace the tires.
The location of these indicators are at 60 degree intervals around the outer
diameter of the tire. The indicators appear as a 6 mm (0.25 in) wide band when the
tire trea ...
Tire and Wheel Balancing (Collet Cone Selection)
Important: Never use the hub cap bore to center the wheel onto
the balancer. The pilot bore (on the hub side of the wheel) is machined
to be concentric to very tight non - standard tolerances. The bottom cap
bore is not machined to this same degree of precision.
Accurate mac ...