OnStar Services

See also:

Footnotes — Maintenance Schedule Additional Required Services — Normal
a) Vehicles with different size front and rear tires do not have tire rotation. See Tire Rotation. b) Or every two years, whichever comes first. More frequent replacement may be needed if the ...

U-Rail
For vehicles with a u-rail system, the fence can be moved to different positions on the u-rail track to secure cargo. Push both adapter buttons to move the adapters (B) on the straight par ...

Engine Exhaust
WARNING Engine exhaust contains carbon monoxide (CO) which cannot be seen or smelled. Exposure to CO can cause unconsciousness and even death. Exhaust may enter the vehicle if: The vehicl ...