Buick Regal: Underbody Maintenance - Exterior Care - Appearance Care - Vehicle Care - Buick Regal Owners ManualBuick Regal: 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.

    Finish Damage
    Any stone chips, fractures, or deep scratches in the finish should be repaired right away. Bare metal will corrode quickly and may develop into major repair expense. Minor chips and scratches can be ...

    Chemical Paint Spotting
    Some weather and atmospheric conditions can create a chemical fallout. Airborne pollutants can fall upon and attack painted surfaces on the vehicle. This damage can take two forms: blotchy, ring-shape ...

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    Tire damage
    General information Inspect your tires often for damage, foreign objects lodged in the tread, and tread wear. Notes Driving over rough or damaged road surfaces, as well as debris, curbs and oth ...

    Downshift restriction warning buzzer
    To help ensure safety and driving performance, downshifting operation may sometimes be restricted. In some circumstances, downshifting may not be possible even when the shift lever or paddle shift ...

    Programming the integrated garage door opener on the rear-view mirror
    Programming WARNING Only press the transmitter button on the integrated garage door opener if there are no persons or objects present within the sweep of the garage door. People could othe ...