See also:

Underbody Maintenance
Use plain water to flush dirt and debris from the vehicle's underbody. Your dealer or an underbody car washing system can do this. If not removed, rust and corrosion can develop. ...

Repair Facility
GM also recommends that you choose a collision repair facility that meets your needs before you ever need collision repairs. Your dealer may have a collision repair center with GM-trained te ...

Traction Control System (TCS)/StabiliTrak® Light
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 i ...