Vehicle and Power Issues

OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.

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    Comfort and Convenience
    Select the Comfort and Convenience menu and Chime Volume will be displayed. Chime Volume This allows the selection of the chime volume level. Press the TUNE/MENU knob when Chime Volume is highlight ...

    Driving Through Deep Standing Water
    Notice: If you drive too quickly through deep puddles or standing water, water can come in through your engine’s air intake and badly damage your engine. Never drive through water that is slight ...

    Cold Temperature Operation
    If in an area of extreme cold, where the temperature falls below −20°F (−29°C), use either an SAE 5W-30 synthetic oil or an SAE 0W-30 engine oil. Both provide easier cold starting ...