OnStar Services

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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. Yo ...

Express Window Anti-Pinch Feature
If any object is in the path of the window when the express-up is active, the window will stop at the obstruction and auto-reverse to a preset factory position. Weather conditions such as severe i ...

Programming the Universal Home Remote System
For questions or help programming the Universal Home Remote System, call 1–800–355–3515 or go to www.homelink.com. Programming a garage door opener involves time-sensitive actions, so read ...