GM Service Manual Online
For 1990-2009 cars only

The front camber and caster are not adjustable. Refer to Wheel Alignment Specifications . Jounce the bumper three times before measuring the camber or the caster in order to prevent an incorrect reading. If the front camber or caster measurements deviate from the specifications, locate and replace or repair any damaged, loose, bent, dented, or worn suspension part. If the problem is body related, repair the body.