Underbody Maintenance

Chemicals used for ice and snow removal and dust control can collect on the underbody. If these are not removed, corrosion and rust can develop on the underbody parts such as fuel lines, frame, floor pan, and exhaust system even though they have corrosion protection.

At least every spring, flush these materials from the underbody with plain water. Clean any areas where mud and debris can collect. Dirt packed in close areas of the frame should be loosened before being flushed. Your dealer or an underbody car washing system can do this.

    See also:

    Turn and Lane-Change Signals
    An arrow on the instrument panel cluster flashes in the direction of the turn or lane change. For vehicles with the side blind zone alert system, an arrow in the outside mirror flashes when ...

    Passenger Compartment Air Filter
    The filter removes dust, pollen, and other airborne irritants from outside air that is pulled into the vehicle. The filter should be replaced as part of routine scheduled maintenance. See Scheduled ...

    LaCrosse in the Market
    The LaCrosse isn't a product of the yesteryear thinking that drove GM to build a competitor to whatever Lincoln was building across town. That's the sort of culture that got GM into trouble in the ...