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:

    On the Road
    The LaCrosse moves out when pushed, but its capabilities stop short of an all-out sport sedan's — fine by me, seeing as no one ever wanted Buick to build the next BMW. The LaCrosse CXS, which pa ...

    Hazard Warning Flashers
    The hazard warning flashers warn others. They also let police know you have a problem. Your front and rear turn signal lamps will flash on and off. The hazard warning flasher button is loca ...

    Driving with a Trailer
    Towing a trailer requires experience. Get familiar with handling and braking with the added trailer weight. The vehicle is now longer and not as responsive as the vehicle is by itself. Check all ...