Special Coverage Adjustment
18029 Inoperative Purge Solenoid
Reference Number:

N172115200

Make
Buick
Cadillac

Chevrolet

GMC

Model
Enclave
LaCrosse
ATS
CTS
SRX
XTS
Camaro
Caprice
Colorado
Equinox
Impala
Traverse
Acadia
Canyon
Terrain

Release Date:
Revision:
Model Year
From
To
2015
2015

RPO

June 2018
00
Description

Involved vehicles are identified on the Applicable Warranties section 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

Special
Coverage
Adjustment

Certain 2015 model year various makes and model vehicles listed above, may have an inoperative
purge solenoid that could lead to excessive fuel vapors entering the combustion chamber from the
fuel tank. This condition could result in no start, idle stall, and possible drivability issues such as
hesitation. The driver may see a check engine light, and may notice a ticking noise, and variation in
idle speed. The driver may experience this condition most immediately after filling up the vehicle with
gas or while coming to a stop.
This special coverage covers the condition described above for a period of 10 years or 120,000 miles
(193,000 km), whichever occurs first, from the date the vehicle was originally placed in service,
regardless of ownership.
For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after June
26, 2018, are covered by this special coverage and must be submitted using the labor operation codes
provided with this bulletin. Claims with repair orders prior to June 26, 2018, must be submitted to the
Service Contract provider.

Correction

Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (“Customers”) are
eligible for reimbursement of their reasonable and customary expenses in accordance with the
procedures specified below. The conditional right to reimbursement is provided by GM solely in the
interest of customer satisfaction and is personal to Customers. Customers may not assign and GM
does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to
receive reimbursement, or any other rights granted by this Special Coverage to any third party,
including but not limited to service contract providers, and this Special Coverage is not intended to
and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights
to reimbursement, against GM, whether in law, equity or otherwise, on any third parties.
Dealers are to inspect for a leak in the solenoid assembly and replace if necessary. The repairs will be
made at no charge to the customer.

Parts
Quantity
1

Part Name
Evaporative Emission Canister Purge Solenoid Valve

Part No.
12690512

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.

Copyright 2018 General Motors. All Rights Reserved.

Page 1 of 3

Special Coverage Adjustment
18029 Inoperative Purge Solenoid
Warranty Information
Labor
Operation
9900510
9900511

9900512
9900513
9900514

Description
Diagnosis only – no further action required
Repair (includes diagnosis)
(Camaro, Colorado, Impala, Canyon, ATS, CTS, SRX, and
LaCrosse)
Repair (includes diagnosis)
(Traverse, Caprice, Equinox, Acadia, Terrain, XTS, and Enclave)
Customer Reimbursement Approved
- For USA and Canada dealers only
Customer Reimbursement Denied – For USA dealers only

Labor
Time
0.3
0.5

Trans.
Type
ZREG
ZREG

Net
Item
N/A
N/A

0.6

ZREG

N/A

ZREG

*

ZREG

**

N/A
N/A

*

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.

Service Procedure
1.

Perform a Purge Solenoid Valve test.
1.1 Ignition ON, engine OFF.
1.2 Command the EVAP Purge/Seal function to System Seal or Not Venting with a scan tool to seal the EVAP
system.
1.3 Start the Engine.
1.4 Observe the Fuel Tank Pressure Sensor with a scan tool. The Fuel Tank Pressure Sensor parameter should be
less than 1.7V after 90 seconds.
•

If NOT within specifications
Proceed to step 2

•

Within Specifications
No further action required

2.

Replace the Purge Solenoid Valve. Refer to Evaporative Emission Canister Purge Solenoid Valve Replacement in
SI.

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
General Motors will notify Customers of this special coverage on their vehicle (see copy of typical 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 2 of 3

Special Coverage Adjustment
18029 Inoperative Purge Solenoid
July 2018
This notice applies to your vehicle, VIN: _____________________________________
Dear General Motors Customer:
As the owner of a 2015 model year various makes and model vehicles, your satisfaction with our product is very
important to us.
This letter is intended to make you aware that some 2015 model year various makes and model vehicles, may have an
inoperative purge solenoid that could lead to excessive fuel vapors entering the combustion chamber from the fuel tank.
This condition could result in no start, idle stall, and possible drivability issues such as hesitation. The driver may see a
check engine light, and may notice a ticking noise, and variation in idle speed. The driver may experience this condition
most immediately after filling up the vehicle with gas or while coming to a stop.
Do not take your vehicle to your GM dealer as a result of this letter unless you believe that your vehicle has the
condition as described above.
What We Have Done: General Motors is providing owners with additional protection for the condition described above.
If this condition occurs on your 2015 model year various make and model vehicles within 10 years of the date your
vehicle was originally placed in service or 120,000 miles (193,000 km), whichever occurs first, the condition will be
repaired for you at no charge. Diagnosis or repair for conditions other than the condition described above is not
covered under this special coverage program.
What You Should Do: If you believe that your vehicle has the condition described above, repairs and adjustments
qualifying under this special coverage must be performed by a General Motors dealer. You may want to contact your
GM dealer to find out how long they will need to have your vehicle so that you may schedule the appointment at a time
that is convenient for you. This will also allow your dealer to order parts if they are not already in stock. Keep this letter
with your other important glove box literature for future reference.
Reimbursement: If you have 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 48232-5170. 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.
The right to submit reimbursement claims is provided by GM solely in the interest of customer satisfaction and is
personal to vehicle owners and lessees who previously paid for repairs referenced in this Special Coverage
(“Customers”). Customers may not assign and GM does not consent to any assignment of any Customer’s right
to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special
Coverage to any third party, including but not limited to service contract providers, and this Special Coverage
is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any
other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties.
If you have any questions or need any assistance, please contact your dealer or the appropriate Customer Assistance
Center at the number listed below.
Division
Buick
Cadillac
Chevrolet
GMC
Puerto Rico – English
Puerto Rico – Español
Virgin Islands

Number
1-800-521-7300
1-800-458-8006
1-800-222-1020
1-800-462-8782
1-800-496-9992
1-800-496-9993
1-800-496-9994

Text Telephones (TTY)
1-800-832-8425
1-800-833-2622
1-800-833-2438
1-800-889-2438

We are sorry for any inconvenience you may experience; however, we have taken this action in the interest of your
continued satisfaction with our products.
Neelie O’Connor
Executive Director
North America Contact Center Operations
Enclosure
18029
Page 3 of 3

GLOBAL SAFETY FIELD INVESTIGATIONS
DCS4795
URGENT - DISTRIBUTE IMMEDIATELY
Date:

June 26, 2018

Subject: 18029 - Special Coverage
Inoperative Purge Solenoid
Models: 2015 Buick Enclave, LaCrosse
2015 Cadillac ATS, CTS, SRX, XTS
2015 Chevrolet Camaro, Caprice, Colorado, Equinox, Impala, Traverse
2015 GMC Acadia, Canyon, Terrain
To:

All General Motors Dealers

General Motors is releasing Special Coverage 18029 today. The total number
of U.S. vehicles involved is approximately 675,190. Please see the attached
bulletin for details.
Customer Letter Mailing
The customer letter mailing will begin on July 16, 2018 or sooner.
Global Warranty Management (GWM)
The Investigate Vehicle History (IVH) screen in the GWM system will be updated June
26, 2018. Please hold all warranty transactions until IVH has been updated.
END OF MESSAGE
GLOBAL SAFETY FIELD INVESTIGATIONS