GM Service Manual Online
For 1990-2009 cars only

The rear camber is not adjustable. Refer to Wheel Alignment Specifications . If the rear camber deviates from the following specification, locate the cause and correct it:

Specifications
Rear camber specifications -1°45 ± 0°30.

If damaged, loose, bent, dented, or worn suspension parts are found, they should be repaired or replaced. If the problem is body related, repair the body.