Special Coverage Adjustment 18029 Inoperative Purge Solenoid – 2015 Buick Cadillac Chevrolet & GMC

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Special Coverage Adjustment
18029 Inoperative Purge Solenoid

Make	Model	Model Year		RPO	Description
		From	To
Buick	Enclave	2015	2015
	LaCrosse
Cadillac	ATS
	CTS
	SRX
	XTS
Chevrolet	Camaro
	Caprice
	Colorado
	Equinox
	Impala
	Traverse
GMC	Acadia
	Canyon
	Terrain

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.

Parts

Quantity	Part Name	Part No.
1	Evaporative Emission Canister Purge Solenoid Valve	12690512 GM Genuine Parts 12690512 Vapor Canister Purge Valve Offering the quality, reliability, and durability of GM OE Manufactured to GM OE specification for fit, form, and function Package weight of the Product: 3.36 ounces $34.97 Buy on Amazon Price incl. tax, excl. shipping Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API

Reminder: Parts may be removed from Retail Inventory Management (RIM). Dealers should review the affected parts to confirm RIM managed status.

Warranty Information

* 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.

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, just contact your dealer or the appropriate Customer Assistance Center at the number listed below.

Division	Number	Text Telephones (TTY)
Buick	1-800-521-7300	1-800-832-8425
Cadillac	1-800-458-8006	1-800-833-2622
Chevrolet	1-800-222-1020	1-800-833-2438
GMC	1-800-462-8782	1-800-889-2438
Puerto Rico – English	1-800-496-9992
Puerto Rico – Español	1-800-496-9993
Virgin Islands	1-800-496-9994

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