Fuel System Messages

FUEL LEVEL LOW

This message displays when the vehicle is low on fuel. Refuel as soon as possible

TIGHTEN GAS CAP

This message displays when the fuel cap is not on tight. Tighten the fuel cap.

    See also:

    Language — English/Metric
    To change the language of the navigation screens or to change the navigation screens from English or metric, see Driver Information Center (DIC)   for more information. ...

    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 v ...

    Engine Oil Additives/Engine Oil Flushes
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