Warranty

OnStar equipment may be warranted as part of the new-vehicle limited warranty. The manufacturer of the vehicle furnishes detailed warranty information.

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    Manual Operation
    (Fan Control): Press the up or down arrows to increase or decrease the fan speed Pressing this button when the system is off will turn the system on. Pressing either arrow while using automatic ...

    Checking Coolant
    The vehicle must be on a level surface when checking the coolant level. Check to see if coolant is visible in the coolant surge tank. If the coolant inside the coolant surge tank is boiling, do not ...