Chevrolet 2003 Cavalier Owner's Manual page 104

If the mirror control lever is unable to operate the mirror
adjustment, you can reset the adjustment lever on
the driver's side mirror only, by following these steps:
1. Roll down the driver's door window.
2. Fold the mirror toward the front of the vehicle. Hold
the mirror in position with your left hand.
3. With your right hand, move the adjustment lever
handle (inside the vehicle) in order to align the T
end of the lever with the lever slide.
4. Fold the mirror back to the original position in order to
engage the T end of the lever with the lever slide.
5. Make sure the mirror housing is fully seated to
its
base.
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