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:
2012 Buick Verano Review
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Parent company GM sunk big cash into developing ...
Rolling Ding Factory
I noticed another anomaly that didn't stand out in previous tests: a flawed
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Special Application Services
• Severe Commercial Use
Vehicles Only: Lubricate chassis
components every 5 000 km/3,000 mi.
• Have underbody flushing service
performed once a year. ...