Diagnostics

OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the veh ...

OnStar Additional Information

Transferring Service Push to request account transfer eligibility information. The Advisor can assist in canceling or removing account information. If OnStar receives information that vehicle owne ...

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Important safety notes
WARNING   Grains of sand, particles of dirt and other abrasive materials can enter the brake system. This can lead to excessive wear and unpredictable braking efficiency. After the bra ...

Environmental Concerns
Always use established trails, roads, and areas that have been set aside for public off-road recreational driving and obey all posted regulations. Do not damage shrubs, flowers, trees, or grass ...

Stability control warning lamps
The DSC warning lamp in the instrument pack illuminates briefly when the ignition is turned on. If the warning lamp flashes rapidly during driving, the system is active. A fault with the DSC sys ...