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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    System alarm operation
    The alarm system will give the following alarms when triggered: ● The vehicle’s horn will sound and the turn signal lights will flash for 30 seconds. ● If any door (or the rear gate/ ...

    Display in the instrument cluster
    The selected speed is displayed in the speedometer. ▷ Green: the system is actively braking the vehicle. ▷ Orange: the system is on standby. ...

    Trailer brakes
    WARNING ● Adequate size trailer brakes are required when the trailer and its cargo exceed 1,000 lbs (453 kg) total weight. ● Do not directly connect your trailer’s hydraulic brake sy ...