GMC Terrain: Engine Oil Additives/Engine Oil Flushes - Engine Oil - Vehicle Checks - Vehicle Care - GMC Terrain Owner's ManualGMC Terrain: Engine Oil Additives/Engine Oil Flushes

Do not add anything to the oil. The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protection.

Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty.

    Selecting the Right Engine Oil
    Selecting the right engine oil depends on both the proper oil specification and viscosity grade. See Recommended Fluids and Lubricants on page 11‑12. Specification Use and ask for licensed e ...

    What to Do with Used Oil
    Used engine oil contains certain elements that can be unhealthy for your skin and could even cause cancer. Do not let used oil stay on your skin for very long. Clean your skin and nails with soap ...

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    Using the infotainment system
    If the infotainment system is on when the ignition is switched off, it will come on automatically the next time the ignition is put in mode I or higher and continue using the same source (FM1, ...

    If the Starter Does Not Operate
    1) Try turning the ignition switch to the “START” position with the headlights turned on to determine the battery condition. If the headlights go excessively dim or go off, it usually means th ...

    Overdrive (O/D) OFF switch
    When the O/D OFF switch is pushed with the selector lever in the D (Drive) position, the indicator light in the instrument panel illuminates. Use the overdrive off mode when you need impr ...