GM Service Manual Online
For 1990-2009 cars only

Your vehicle is equipped with a front air dam which has minimal ground clearance.

Under normal operation, the air dam will occasionally contact some road surfaces (speed bumps, driveway ramps, etc.). This can be heard inside the vehicle as a scraping noise. This is normal and does not indicate a problem.

Use care when approaching bumps or objects on road surfaces and avoid them when possible.