Underbody Maintenance

Use plain water to flush dirt and debris from the vehicle's underbody.

Your dealer or an underbody car washing system can do this. If not removed, rust and corrosion can develop.

    See also:

    Oil Pressure
    This display shows the oil pressure in either kilopascals (kPa) or pounds per square inch (psi). ...

    Safety
    The National Highway Traffic Safety Administration gave the 2007 Yukon a five-star frontal crash-test rating; it hasn't done a side-impact test as of this writing. Rollover ratings were listed at ...

    Airbag Readiness Light
    This light shows if there is an electrical problem. The system check includes the airbag sensor(s), passenger sensing system, the pretensioners, the airbag modules, the wiring, and the crash sensi ...