Passing

More passing distance is needed when towing a trailer. Because the rig is longer, it is necessary to go much farther beyond the passed vehicle before returning to the lane.

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    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 ...

    Services Not Included in Roadside Service
    - Impound towing caused by violation of any laws. - Legal fines. - Mounting, dismounting, or changing of snow tires, chains, or other traction devices. - Towing or services for vehicles dri ...

    Map Destination Screen Functions
    If the map screen is used to show destination, it will have map screen capabilities such as GO, Mark, Zoom, Scroll, etc. The address is shown at the top of the screen. Destination Map Screen ...