GM Service Manual Online
For 1990-2009 cars only

Causes

Correction

Linings damaged by abusive use

Replace the brake linings.

Damaged vacuum booster

Replace the vacuum booster.

Worn out brake linings

Replace the brake linings.

Uneven brake lining wear

Replace the brake linings.

Incorrect lining material

Replace the brake linings.

Improper rotor surface finish

Refinish the rotor surface or replace the rotor.

Scored rotor

Refinish the rotor surface or replace the rotor.

Improper thickness variation in the rotor

Repair or replace the rotor.

Excessive rotor lateral runout

Repair or replace the rotor.

Loose front or rear brake assembly attachment

Locate and tighten the loose brake components.