See also:

Traction Control System (TCS)/StabiliTrak® Light
The Traction Control System (TCS)/ StabiliTrak Light comes on briefly when the engine is started. If the light does not come on, have the vehicle serviced by the dealer. If the system is working n ...

Lap-Shoulder Belt
All seating positions in the vehicle have a lap-shoulder except for the center front passenger position (if equipped), which has a lap belt. See Lap Belt for more information. The following instr ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if ...