Customer Service Order and Warranty Information
***CUSTOMER SERVICE ORDER/WARRANTY CLAIM REQUIRED DOCUMENTATION
Important:
When using any one of the brake labor operations listed in this bulletin (except for H9709 - Brake Burnish), the following three rotor measurements (1. Original Rotor Thickness, 2. Refinished Rotor Thickness and 3. Lateral Run Out) are required and MUST be written/documented on the customer service order, or for your convenience, complete the form (GM Brake Service customer service order Documentation for Required Measurements) shown above and attach it to the customer service order. If the Warranty Parts Center generates a request, this Documentation/Form must be attached to the customer service order that is sent back.
Important:
Documentation of brake lathe maintenance and calibration as recommended by the lathe manufacturer must be available for review upon request.
Customer Service Order Documentation - Rotor Original And Refinished Thickness - REQUIRED
When resurfacing a brake rotor or drum, the ORIGINAL thickness (measured thickness before refinish) and REFINISHED thickness (measured thickness after refinish) MUST be written/documented on the customer service order hard copy for each rotor serviced. If a rotor replacement is necessary, only the Original thickness measurement needs to be recorded.
Customer Service Order Documentation - Lateral Run Out (LRO) and Correctional Plate Part Number - REQUIRED
When using any one of the brake labor operations listed in this bulletin (except for H0192/H0202 - Brake Drum Refinishing and H9709 - Brake Burnish), the rotor assembly MUST be measured for Lateral Run Out (LRO) (follow brake procedure steps 9-11). If the LRO measurement is greater than 0.050 mm (0.002 in), correct it by using the proper Brake Align(R) Correctional Plate (DO NOT refinish new rotors or newly refinished rotors to correct LRO). This LRO measurement, and the Correctional Plate part number used to correct the LRO, MUST be written/documented on the customer service order hard copy. If no correction is necessary, only the LRO measurement for each rotor serviced needs to be recorded.
Important:
Correction plates can only be used on Hubless rotor design. A correction plate part number can not be used with Hubbed, Trapped or Captured type designed rotors.
Warranty System Documentation - Lateral Run Out (LRO) - REQUIRED
When using any one of the brake labor operations listed in this bulletin (except for H0192/H0202 - Brake Drum Refinishing and H9709 - Brake Burnish), the Lateral Run Out (LRO) measurement (as measured in the "customer service order Documentation Lateral Run Out" section above) MUST be documented in the technician comments section of the warranty claim.
Customer Service Order Documentation - Explanation of Part Replacement - REQUIRED
If replacement of a brake component is necessary, proper documentation on the customer service order is required. See the following examples:
^ Brake rotor replacement - Customer comment was brake pulsation. Rotor was refinished on a prior brake service. After rotor measurement, it was determined that refinishing the rotor again would take it under the Minimum Thickness specification.
^ Brake pad replacement - Customer comment was brake squeak noise. On inspection, found pads contaminated by fluid leak at caliper.