OnStar Services

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Treadwear 200 Traction AA Temperature A
The following information relates to the system developed by the United States National Highway Traffic Safety Administration (NHTSA), which grades tires by treadwear, traction, and temper ...

Delayed Locking
This feature delays the locking of the doors and the liftgate when using the power lock or the remote keyless entry system. The first press of the power door lock switch or lock button on the re ...

Ending Cruise Control
There are three ways to end cruise control: • Step lightly on the brake pedal. • Press the button on the steering wheel. • Press the button on the steering wheel. ...