OnStar Services

See also:

With Selective Ride Control
1. Move the shift lever to the left from D (Drive). The vehicle will be in Sport Mode. The gear indicator in the DIC will still display a D for Drive, and the SPORT MODE ON message will be ...

Wheel Replacement
Replace any wheel that is bent, cracked, or badly rusted or corroded. If wheel nuts keep coming loose, the wheel, wheel bolts, and wheel nuts should be replaced. If the wheel leaks air, replace it ...

Additional Required Services At Each Fuel Stop
• Engine oil level check. See Engine Oil. • Engine coolant level check. See Engine Coolant (4.6L Engine) or Engine Coolant (3.9L Engine). • Windshield washer fluid level check. See Windshi ...