OnStar Services

See also:

Vehicle Storage
WARNING Batteries have acid that can burn you and gas that can explode. You can be badly hurt if you are not careful. See Jump Starting   for tips on working around a battery witho ...

Steering Wheel Adjustment
Push the control up or down to tilt the steering wheel up or down. To set the memory position, see Vehicle Personalization  . ...

Tire Pressure for High-Speed Operation
WARNING Driving at high speeds, 160 km/h (100 mph) or higher, puts an additional strain on tires. Sustained high-speed driving causes excessive heat buildup and can cause sudden tire failure ...