Maintenance when Trailer Towing

The vehicle needs service more often when pulling a trailer. See Maintenance Schedule on page 11‑3. Things that are especially important in trailer operation are automatic transmission fluid, engine oil, axle lubricant, belts, cooling system, and brake system. It is a good idea to inspect these before and during the trip.

Check periodically to see that all hitch nuts and bolts are tight.

    See also:

    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 ...

    LED Lighting
    This vehicle has several LED lamps. For replacement of any LED lighting assembly, contact your dealer. ...

    Setting the Tone (Bass/Midrange/Treble) (All Except AM-FM Radio and Radio with CD)
    BASS/MID/TREB (Bass, Midrange, or Treble): To adjust the bass, midrange, or treble: 1. Press the knob until the tone control tabs display. 2. Highlight the desired tone control tab by doing one of ...