GLOBAL SAFETY FIELD INVESTIGATIONS
DCS6760
URGENT - DISTRIBUTE IMMEDIATELY
Date:

January 4, 2024

Subject: N232427950 - Emission Recall
Fuel Injector Flow Rate
Models: 2023 Chevrolet Colorado
2023 Chevrolet Silverado 1500
2023 GMC Canyon
2023 GMC Sierra 1500
Equipped with a 2.7L Engine (RPO L3B or L2R)
To:

All General Motors Dealers

General Motors is releasing Emission Recall N232427950 today. The total
number of U.S. vehicles involved is approximately 232. Please see the
attached bulletin for details.
Customer Letter Mailing
The customer letter mailing will begin on January 19, 2024.
Global Warranty Management (GWM)
The Required Field Action section on the Investigate Vehicle History (IVH) screen will
be updated January 4, 2024. A Stock VIN list is not included as our records show there
are no vehicles in dealer new inventory.
END OF MESSAGE
GLOBAL SAFETY FIELD INVESTIGATIONS

Emission Recall
N232427950 Fuel Injector Flow Rate
Release Date:
Attention:

January 2024

Revision:

00

Vehicles involved in this recall were placed on stop delivery November 22, 2023, in Canada only. Once
the service procedure contained in this bulletin has been performed on the vehicle, the vehicle is released
from stop delivery and the vehicle can be delivered to the customer.
All involved vehicles in the US and Canada that are in dealer inventory must be held and not delivered
to customers, dealer traded, or used for demonstration purposes until the repair contained in this bulletin
has been performed on the vehicle.

Make

Model Year
From
To

Model
Colorado
Silverado 1500
Canyon
Sierra 1500

Chevrolet
GMC

2023

RPO

2023

L3B or
L2R

Description
ENGINE-GAS, 4 CYL, L4, 2.7L,
SIDI, VVT or ENGINE-GAS, 4
CYL, L4, 2.7L, DI

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

General Motors has decided to conduct a Voluntary Emission Recall involving certain 2023 model year
Chevrolet Silverado 1500/Colorado and GMC Sierra 1500/Canyon vehicles with a 2.7L engine. Under
certain driving conditions, due to differences in flow rate characteristics, the fuel injectors may not be
able to properly optimize engine fueling for emissions purposes.
Dealers will replace the engine’s four fuel injectors.

Parts
Quantity
4
4
1
1
1
As Required
(Maximum 6 gallons)

Part Name
INJECTOR ASM-DIR FUEL
GASKET-INT MANIF
SEAL-C/CASE VENT PASG
SEAL-ENG COOL FLOW CONT VLV
PIPE ASM-FUEL FEED INTER

COOLANT

Part No.
12733960*
12663540
12667009
12666026
12663312
12346290 (US)
10953464 (CA)
Obtain locally in compliance with GM spec
GMW3420 for Dexcool concentrate and GM
Spec GMW18270 for premix 50/50 Dexcool.

*These fuel injectors are supplied in sets of four with matched flow rate characteristics.
It is estimated that there are only 272 involved vehicles that will require parts being replaced. Due to the small
number of vehicles anticipated that will need this repair 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.
Warranty Information
Labor
Operation
9107087
9107112
9107113

Description

Labor
Time

Trans.
Type

Net
Item

Fuel Injector Replacement
Colorado/Canyon
Silverado/Sierra
Floor Plan Reimbursement – NEW INVENTORY ONLY

4.3
2.9

ZFAT

N/A

N/A

ZFAT

*

Working Capital Assistance Program Reimbursement – USED
INVENTORY ONLY

N/A

ZFAT

**

Note: USA & Canada Only - To avoid having to “H” route the floor plan / WCAP transaction for approval, it must be
submitted prior to the repair transaction.

Copyright 2024 General Motors. All Rights Reserved.

Page 1 of 5

Emission Recall
N232427950 Fuel Injector Flow Rate
Floor Plan Reimbursement – NEW INVENTORY ONLY
USA & Canada Dealers Only – For vehicles eligible for floor plan reimbursement, the amount should be submitted
in Net Item/Miscellaneous. This amount should represent the product of the vehicle’s average daily interest rate (see
table below) multiplied by the actual number of days the vehicle was in dealer inventory and not available for sale.
This reimbursement is limited to the number of days from the date of the stop delivery message (November 22, 2023)
to the date the repair is completed, and the vehicle is ready for sale (not to exceed 47 days).

*

Vehicle
2023 Chevrolet Silverado 1500
2023 GMC Canyon

Floor Plan Reimbursement Amount
USA
Canada
N/A

$11.10

N/A

$9.20

Working Capital Assistance Program (WCAP) Reimbursement – USED INVENTORY ONLY
Note: USA & Canada Only - To avoid having to “H” route the WCAP transaction for approval, it must be submitted prior
to the repair transaction.
Important: The WCAP ZSET transaction labor code, 9800121, provided in the dealer message sent on December
6, 2023 (Canada), must have been submitted prior to the submittal of the ZFAT transaction labor code or the
claim will reject.
**

USA & Canada Dealers Only - For vehicles eligible under the Working Capital Assistance Program, the amount
should be submitted in Net Item/Miscellaneous. This amount has been calculated to a daily value for the days that
the vehicle was in used dealer inventory and not available for sale. This reimbursement is limited to the number
of days from the date of the stop sale/stop delivery order (November 22, 2023) to the date the inspection or repair
closed the recall bulletin (not to exceed 47 days).

Vehicle

Working Capital Assistance Program Reimbursement Amount
USA
Canada

2023 Chevrolet Colorado

N/A

$17.80

2023 Chevrolet Silverado 1500

N/A

$26.35

2023 GMC Canyon

N/A

$20.07

2023 GMC Sierra 1500

N/A

$28.30

Service Procedure
1.

Replace the fuel injectors. Refer to Fuel Injector Replacement in SI.

2.

CALIFORNIA, COLORADO, CONNECTICUT, DELAWARE, MAINE, MARYLAND, MASSACHUSETTS, NEW
JERSEY, NEW YORK, OREGON, RHODE ISLAND, VERMONT, WASHINGTON VEHICLES ONLY: Install a Recall
Identification Label upon recall completion. See General Motors Service Policies and Procedures Manual, Recall
Identification Label, for details.

3.

CALIFORNIA VEHICLES ONLY: Complete a “Proof of Correction” certificate and provide to the vehicle owner upon
recall completion. For the recall number on the “Proof of Correction” certificate, enter only the six digits in characters
4-9 of this recall bulletin number: 242795.

Dealer Responsibility
All new, used, GM Certified Pre-Owned (CPO), courtesy transportation vehicles, dealer shuttle vehicles, CarBravo, etc.
in dealers' possession and subject to this recall 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, dealer-traded, released to auction, used for demonstration, or any other purpose.
All GM Certified Pre-Owned (CPO) vehicles currently in the dealers’ inventory within the SHIFT Digital system 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 SHIFT Digital system, or once again be used in the Courtesy Transportation Program.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of mileage, age of vehicle,
or ownership, from this time forward.

Page 2 of 5

Emission Recall
N232427950 Fuel Injector Flow Rate
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which there is no customer
information indicated on the dealer 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. Recall 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 recall enters your vehicle inventory you must take the steps necessary to
ensure the program correction has been made before selling the vehicle. In addition, for vehicles entering your facility for
service, you are required to ensure the customer is aware of the open recall and make every reasonable effort to
implement the program correction as set forth in this bulletin prior to releasing the vehicle.
***THE FOLLOWING 2 PARAGRAPHS ARE NOT FOR CANADA OR EXPORT***
When a California emissions recall is completed by a GM dealer, the dealer must provide the vehicle owner a “Proof of
Correction Certificate” which the owner may need to present to the California Department Of Motor Vehicles (DMV) when
renewing their vehicle registration. Without this correction certificate, the owner may be unable to renew their vehicle
registration.
Additional Certificates can be obtained, at no charge, from the 1Store application in GlobalConnect. Request GM Item
Number 1825 when ordering.
Dealer Reports – For USA & Export
For dealers with involved vehicles, a listing has been prepared and will be available through GM GlobalConnect Maxis
Field Action Reports or sent directly to export dealers. The Inventory tab of the dealer reports will contain VINs that
apply to this recall. This information is intended to assist dealers with the PROMPT COMPLETION of these
vehicles. The Customer In-Service tab will contain customer names and addresses from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up necessary to complete
this recall may be a violation of law in several states.
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 for courtesy transportation
program details.
Customer Notification
USA & Canada - General Motors will notify customers of this recall on their vehicle (see copy of customer letter included
with this bulletin).
In order to ensure full protection under the emission warranty, and the right to participate in future recalls, the customer
notification letter recommends that customers have their vehicles serviced as soon as possible. It also advises that failure
to do so could legally be determined to be lack of proper maintenance. The vehicle may fail a state or local emission
inspection test if the recall work is not completed.
Export - Letters will be sent to known owners of record located within areas covered by the US National Traffic and Motor
Vehicle Safety Act. For owners outside these areas, dealers should notify customers using the attached sample letter.
In order to ensure full protection under the emission warranty, and the right to participate in future recalls, the customer
notification letter recommends that customers have their vehicles serviced as soon as possible. It also advises that failure
to do so could legally be determined to be lack of proper maintenance. The vehicle may fail a state or local emission
inspection test if the recall work is not completed.

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 5

Emission Recall
N232427950 Fuel Injector Flow Rate

January 2024
This notice applies to your vehicle, VIN: _____________________________________
Dear General Motors Customer:
This notice is sent to inform you that General Motors is conducting a voluntary emission recall that includes your
vehicle.
Reason For This Recall: Your 2023 model year Chevrolet Colorado, Chevrolet Silverado 1500, GMC Canyon, or
GMC Sierra 1500 vehicle, equipped with a 2.7 Liter, 4 Cylinder engine, has been certified to meet California and
Federal emissions standards and may be releasing air pollutants which exceed these standards. Under certain driving
conditions, due to differences in flow rate characteristics, the fuel injectors may not be able to properly optimize engine
fueling for emissions purposes.
What Will Be Done: Your GM dealer will replace the engine’s four fuel injectors. This service will be performed for you
at no charge. Eligibility for this service will not be denied solely due to your 2023 model year Chevrolet Colorado,
Chevrolet Silverado 1500, GMC Canyon, or GMC Sierra 1500 vehicle having non-GM parts or repairs performed by
outlets other than a GM franchised dealer.
How Long Will The Repair Take? Because of service scheduling requirements, it is likely that your dealer will need
your vehicle longer than the actual service correction time of approximately 4 hours and 25 minutes.
What You Should Do: Please contact your GM dealer as soon as possible to arrange a service date and to assure
parts availability. Instructions for making this correction have been sent to your dealer. Please ask your dealer if you
wish to know how much time will be needed to schedule, process, and repair your vehicle.
If you have any questions or need any assistance, just contact your dealer or the appropriate Customer Assistance
Center at the number listed below.
For the hearing or speech impaired, please contact our Customer Assistance Center using the Telecommunication
Relay Service by dialing 711 then providing the appropriate Customer Assistance Center number for your vehicle.
Division
Chevrolet
GMC
Puerto Rico – English
Puerto Rico – Español
Virgin Islands

Number
1-800-222-1020
1-800-462-8782
1-866-467-9700
1-866-467-9700
1-866-467-9700

Text Telephones (TTY)
711 / 1-800-833-2438
711 / 1-800-833-2438

Emission Law Information: In order to ensure your full protection under the emission warranty made applicable to
your vehicle by state and federal law, and your right to participate in future recalls, it is recommended that you have
your vehicle serviced as soon as possible. Failure to do so could legally be determined to be lack of proper
maintenance of your vehicle. Also, your vehicle may fail a state or local emission inspection if this recall is not
accomplished.
IMPORTANT MESSAGE FOR CALIFORNIA RESIDENTS
The California Air Resources Board (CARB) requires vehicle emission recalls be completed prior to California
registration renewal. Uncorrected emission recalls will result in the inability to renew your California vehicle registration.
At the time of emission recall completion, your California dealer will issue a "Proof of Correction Certificate". Keep this
certificate and, if required, present it to the Department of Motor Vehicles when renewing your California registration as
proof of recall completion.

We are sorry to cause you this inconvenience; however, we have taken this action in the interest of your continued
satisfaction with our products.

Page 4 of 5

Emission Recall
N232427950 Fuel Injector Flow Rate
Regina A. Carto
Vice President
Global Product Safety and Systems
GM Recall: N232427950

Page 5 of 5