Staining/Discoloring to Brake Caliper Paint – 2012-2021 Cadillac & Chevrolet

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Service Bulletin Bulletin No.: 16-NA-059
Date: October, 2020
INFORMATION
Subject: Staining/Discoloring to Brake Caliper Paint
Brand: Model:
Model Year: VIN:
Engine: Transmission:
from to from to
Cadillac
ATS-V 2016 2018
— All All
CTS-V 2016 2018
Chevrolet
Camaro 2012 2021
Corvette 2014 2020
Involved Region or Country
North America, Europe, Russia, Middle East, Israel, Argentina, Brazil, Bolivia, Chile,
Colombia, Ecuador, Paraguay, Peru, Uruguay, Japan, GM Korea Company, China,
Taiwan, Philippines
Condition
4422999
Some customers may comment on a discoloration or black stain on the paint of the brake
calipers.
Cause This may be caused by high brake pad temperatures during aggressive driving or track
event tarnishing the caliper paint.
Page 2 October, 2020 Bulletin No.: 16-NA-059
Correction
Important: Do NOT replace the brake calipers for this
condition.
This is not a defect in the paint or the caliper.
4423001
Legend
(1) Not cleaned using mild polishing
compound
(2) Cleaned using mild polishing compound
If the customer wishes to have the black stain removed,
a very mild polishing compound can be used to remove
the stain.
Important: Do NOT use harsh chemicals or brake
cleaner to attempt to remove the stain. This could
damage the paint on the caliper.
Warranty Information
Labor fees associated with cleaning the calipers should
NOT be charged under warranty. Rather, this should be
customer pay.
Version 3
Modified May 30, 2017 – Updated the Models and Model Years.
October 14, 2020 – Updated the Models, Model Years and updated formatting to remove
Attention statement and add the Involved Region or Country section.
GM bulletins are intended for use by professional technicians, NOT a “do-it-yourselfer”. They are written to inform these
technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper
service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a
job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your
vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the
information.
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