Customer Satisfaction Program
18198 - Rear Axle Shaft C-Clips Missing
Reference Number:
Attention:

N18215893

Release Date:
Revision:

June 2018
00

This program is in effect until July 31, 2020.

Make
Chevrolet
GMC

Model Year
From
To
2015
2018
2015
2018

Model
Colorado
Canyon

RPO

Description

Involved vehicles are marked “open” on the Investigate Vehicle History screen in GM Global Warranty Management
system. This site should always be checked to confirm vehicle involvement prior to beginning any required inspections
and/or repairs.
Condition

Correction

Certain 2015 to 2018 model year Chevrolet Colorado and GMC Canyon vehicles may have the c-clip
missing from the rear axle shaft. If the c-clip is missing, a brake squeal noise may be heard coming from
the rear of the vehicle, and brake pulsation or vibration may be felt. Vehicles may experience accelerated
brake pad and rotor wear.
Inspect for rear axle shaft c-clip presence, install c-clip if necessary.

Parts
Quantity
2 (As
Req.)
2 (As
Req.)
11
1
8
4
2
2

Rear Axle Shaft Lock (C-Clip) LCV

Part Name

Part No.
23490367

Rear Axle Shaft Lock (C-Clip) 220mm non-ZR2/Zr2 rear axle LFX, LWN, LGZ

23490368

Rear Axle Cover Bolt (Non ZR2)
Rear Axle Cover Stud (Non ZR2)
Rear Axle Cover Bolt (ZR2)
Rear Axle Cover Stud (ZR2)
Gear Fluid (75W-90 GL-5)
Gear Fluid (75W-90 GL-5) (Canada only)

11546720
11549349
11546720
11549349
19352759
19352760

Note: Use the VIN and the GM Electronic Parts Catalog (EPC) to determine which parts to order in the event of damaged
parts from the lack of a C-Clip.
It is estimated that only 500 involved vehicles will require parts replaced. Due to the small number of vehicles anticipated
that will need this fix and the limited initial parts availability, dealers are encouraged not to order these parts for use as
shelf stock.
Reminder: Parts may be removed from Retail Inventory Management (RIM). Dealers should review the affected parts to
confirm RIM managed status. Parts may have quantity limiters in effect.
Warranty Information
Labor
Operation
9103913
9103914
9103926
9103927

Description
Inspect Only – No Further Action Required
Install one C-Clip (Includes Inspection)
Add: Install C-Clip to 2nd side
Customer Reimbursement Approved
-For USA and Canada dealers only
Customer Reimbursement Denied – For USA dealers only

Labor
Time
1.1
1.9
0.5
N/A

Trans.
Type
ZFAT
ZFAT

Net
Item
N/A
N/A

ZFAT

*

N/A

ZFAT

**

* For USA and Canada: Submit the dollar amount reimbursed to the customer in Net/Reimbursement. Submit $20.00
administrative allowance in Net/Admin Allowance.
** Submit $10.00 administrative allowance in Net/Admin Allowance.

Copyright 2018 General Motors. All Rights Reserved.

Page 1 of 4

Customer Satisfaction Program
18198 - Rear Axle Shaft C-Clips Missing
Service Procedure

5095448
1.

Remove both rear brake rotors. Refer to Rear Brake Rotor Replacement in SI. Hang the brake caliper from the leaf
spring as shown to avoid damage to the brake line.

Hub 1 5095431.mp4

5095431
2.

Pull on the axle shaft firmly to see if the axle shaft comes out.
•

3.

If the rear axle shaft does not come out on either side, no further action is required. Reassemble the vehicle.

• If the rear axle shaft can be removed on one or both sides, proceed to step 3.
Replace the C-Clip for the axle shaft or shafts that were found to be loose. Refer to Rear Axle Shaft Replacement in
SI.
•

Inspect the brake components for the axle shaft in question (caliper, caliper bracket, rotor, pads) for potential
damage caused by the lack of a C-Clip to hold the axle in place. If any damaged components are found, replace
them as necessary.

Dealer Responsibility
All new, used, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc. in dealers' possession
and subject to this program must be held and inspected/repaired per the service procedure of this bulletin before
customers take possession of these vehicles. Involved vehicles must be held and not delivered to customers, dealertraded, released to auction, used for demonstration, or any other purpose.
All GM Certified Used vehicles currently in the dealers’ inventory within the Certified Pre-Owned Inventory System
(CPOIS) will be de-certified and must be held and remedied per the service procedure in this bulletin. Upon submitting
an accepted/paid warranty transaction in the Global Warranty Management (GWM) system, the vehicle can be re-certified
for sale within the CPOIS system, or once again be used in the CTP program.
Dealers are to service all vehicles subject to this program at no charge to customers, regardless of mileage, age of vehicle,
or ownership, through July 31, 2020. Customers who have recently purchased vehicles sold from your vehicle inventory,
and for which there is no customer information indicated on the involved vehicle listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions contained in this bulletin. A
copy of the customer letter is provided in this bulletin for your use in contacting customers. Program follow-up cards
should not be used for this purpose, since the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your facility for service
through July 31, 2020 you must take the steps necessary to be sure the program correction has been made before selling
or releasing the vehicle.
Page 2 of 4

Customer Satisfaction Program
18198 - Rear Axle Shaft C-Clips Missing
Dealer Reports
For dealers with involved vehicles, a listing with involved vehicles has been prepared and will be provided to U.S. and
Canadian dealers through the GM GlobalConnect Recall Reports, or sent directly to export dealers. The listing may
contain customer names and addresses obtained from Motor Vehicle Registration Records. The use of such motor
vehicle registration data for any purpose other than follow-up necessary to complete this program is a violation of law in
several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the follow-up necessary to
complete this program.
Courtesy Transportation – For USA & Canada
Courtesy transportation is available for customers whose vehicles are involved in a product program and still within the
warranty coverage period. See General Motors Service Policies and Procedures Manual, Sections 1.4 and 6.1.10, for
courtesy transportation program details.
Customer Notification
USA & Canada - General Motors will notify customers of this program on their vehicle (see copy of customer letter included
with this bulletin).
Customer Reimbursement
Customer requests for reimbursement of previously paid repairs to correct the condition described in this bulletin are to
be submitted to the dealer prior to or by July 31, 2019. See General Motors Service Policies and Procedures Manual,
Section 6.1.11 – Product Field Action Customer Reimbursement Procedure (USA & Canada) or local Policies and
Procedures, for details.

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 tools, equipment, 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 dealer for information on whether your
vehicle may benefit from the information.

We Support
Voluntary Technician
Certification

Page 3 of 4

Customer Satisfaction Program
18198 - Rear Axle Shaft C-Clips Missing
July 2018
This notice applies to your vehicle, VIN: ________________________________
Dear General Motors Customer:
We have learned that your 2015-2018 model year Chevrolet Colorado or GMC Canyon vehicles may have the c-clip
missing from the rear axle shaft. If the c-clip is missing, a brake squeal noise may be heard coming from the rear of the
vehicle, and brake pulsation or vibration may be felt. Vehicles may experience accelerated brake pad and rotor wear.
Your satisfaction with your vehicle is very important to us, so we are announcing a program to prevent this condition or,
if it has occurred, to fix it.
What We Will Do: Your GM dealer will inspect the rear axle shaft and install a c-clip if necessary. This service will be
performed for you at no charge until July 31, 2020. After that, any applicable warranty will apply.
What You Should Do: To limit any possible inconvenience, we recommend that you contact your dealer as soon as
possible to schedule an appointment for this repair. By scheduling an appointment, your dealer can ensure that the
necessary parts will be available on your scheduled appointment date.
Reimbursement: Even though you may have previously had repairs for this condition, you will still need to take your
vehicle to your dealer for additional repairs. If you have already paid for repairs for the condition described in this letter,
please complete the enclosed reimbursement form and present it to your dealer with all required documents. Working
with your dealer will expedite your request, however, if this is not convenient, you may mail the completed
reimbursement form and all required documents to Reimbursement Department, PO Box 33170, Detroit, MI 482325170. The completed form and required documents must be presented to your dealer or received by the
Reimbursement Department by July 31, 2019, unless state law specifies a longer reimbursement period.

If you have any questions or concerns that your dealer is unable to resolve, please contact the appropriate Customer
Assistance Center at the number listed below.
Division
Chevrolet
GMC
Puerto Rico – English
Puerto Rico – Español
Virgin Islands

Number
1-800-222-1020
1-800-462-8782
1-800-496-9992
1-800-496-9993
1-800-496-9994

Text Telephones (TTY)
1-800-833-2438
1-800-889-2438

We sincerely regret any inconvenience or concern that this situation may cause you. We want you to know that we will
do our best, throughout your ownership experience, to ensure that your GM vehicle provides you many miles of
enjoyable driving.
Neelie O’Connor
Executive Director
North America Contact Center Operations
Enclosure
18198

Page 4 of 4

GLOBAL SAFETY FIELD INVESTIGATIONS
DCS4793
URGENT - DISTRIBUTE IMMEDIATELY
Date:

June 26, 2018

Subject: 18198 - Customer Satisfaction Program
Rear Axle Shaft C-Clips Missing
Models: 2015-2018 Chevrolet Colorado
2015-2018 GMC Canyon
To:

All General Motors Dealers

General Motors is releasing Customer Satisfaction Program 18198 today. The
total number of U.S. vehicles involved is approximately 505. Please see the
attached bulletin for details.
Customer Letter Mailing
The customer letter mailing will begin on July 11, 2018.
Global Warranty Management (GWM)
The Investigate Vehicle History (IVH) screen in the GWM system will be updated June
26, 2018. A list of involved vehicles is attached to this message. Please hold all
warranty transactions until IVH has been updated.
END OF MESSAGE
GLOBAL SAFETY FIELD INVESTIGATIONS