OnStar Overview
EmergencyDifferent Size Tires and Wheels
If wheels or tires are installed that are a different size than the original
equipment wheels and tires, vehicle performance, including its braking, ride and
handling characteristics, stability, and resistance to rollover may be affected.
If the vehicle has electronic systems such as antilock ...
Fuses and Circuit Breakers
The wiring circuits in the vehicle are protected from short circuits by a combination
of fuses, circuit breakers, and fusible thermal links.
This greatly reduces the chance of fires caused by electrical problems.
Look at the silver-colored band inside the fuse. If the band is broken or melted,
...
Traction Control/Electronic Stability Control
The TCS limits wheel spin. The system is on when the vehicle is started.
The StabiliTrak system assists with directional control of the vehicle in difficult
driving conditions. The system is on when the vehicle is started.
To turn off traction control, press and release the TCS/StabiliTrak bu ...