See also:

Tire Rotation
Tires should be rotated every 12 000 km (7,500 mi). See Maintenance Schedule  . Tires are rotated to achieve a uniform wear for all tires. The first rotation is the most important. Any time ...

Headlamp Wiring
An electrical overload may cause the lamps to go on and off, or in some cases to remain off. Have the headlamp wiring checked right away if the lamps go on and off or remain off. ...

Buying New Tires
GM has developed and matched specific tires for the vehicle. The original equipment tires installed were designed to meet General Motors Tire Performance Criteria Specification (TPC Spec) system rat ...