CB21J003

IMPORTANT SERVICE
INFORMATION FOR:
 SERVICE MANAGER
 SERVICE ADVISOR
 TECHNICIAN
 PARTS DEPARTMENT
 WARRANTY PERSONNEL
BULLETIN NUMBER:
CB21-J-003
ISSUE DATE:
DECEMBER 2021
GROUP:
ENGINE
VOLUNTARY EMISSIONS RECALL
IMPORTANT ENGINE INFORMATION (IEI)
EMISSIONS LABEL – V21072
AFFECTED VEHICLES

2020-2021MY Isuzu N-Series Tilt Cab Vehicles Produced Before
5/18/2021 and Equipped with 6.6L (L8T) Gasoline Engines
INFORMATION
CONDITION
Isuzu Commercial Truck of America, Inc. is conducting a voluntary emissions recall
involving certain 2020-2021 model year Isuzu N-Series tilt cab trucks produced before
5/18/2021 and equipped with 6.6L (L8T) gasoline engines. The Important Engine
Information (IEI) emissions label does not meet all regulatory requirements.
CORRECTION
Dealers will remove the existing IEI label and install one (1) new IEI label on the oil pan
and one (1) new IEI label on the cab.
IMPORTANT: California dealers must issue a “Proof of Correction Certificate” to
owners of the affected vehicles after completing the work specified below. Advise
the Isuzu owners to keep the Certificate, as the California Department of Motor
Vehicles may ask for proof of this campaign completion before permitting renewal
of the vehicles’ registration.
IMPORTANT: Dealers must fill out every field on the Proof of Correction Certificate.
VEHICLES INVOLVED
Involved are certain 2020-2021 model year Isuzu N-Series tilt cab trucks produced before
5/18/2021 and equipped with 6.6L (L8T) gasoline engines.
NOTE: Dealers are to confirm vehicle eligibility prior to beginning repairs by using the
Isuzu Vehicle Information System (IVIS).
For dealers with involved vehicles, a report of involved vehicles containing the complete
vehicle identification number has been or will be provided. Dealers will not have a report
available if they have no involved vehicles currently assigned.
PARTS INFORMATION
Labels may be ordered from American Isuzu Parts Distribution Network (AIPDN). Please
refer to your “involved vehicles listing” before ordering parts. Normal (non-emergency)
orders should be placed on a Stock Order. In an emergency situation, parts should be
ordered on a VOR (Vehicle Off Road) Order.
P/N
DESCRIPTION
QTY
8-12723-507-0
2020MY IEI Label Class 3 NPR
2
8-12723-506-0
2020MY IEI Label Class 4 NPRHD
2
8-12723-501-0
2021MY IEI Label Class 3 NPR
2
8-12723-502-0
2021MY IEI Label Class 4 NPRHD
2
SERVICE PROCEDURE
1. Lift the vehicle per the instructions in the applicable Work Shop Manual (WSM).
2. Clean the indicated area on the bottom of the oil pan with isopropyl alcohol and
dry with a clean, lint free cloth. The receiving surface must be clean, dry, and free
of any contaminants. (See Figure 1.)
Figure 1 – Oil Pan Location
3. Install a NEW Important Engine Information (IEI) label on the location indicated in
Figure 1 at the bottom of the oil pan.
4. Lower the vehicle per the instructions in the applicable WSM.
5. Safely tilt the cab and insert the safety pin per the instructions in the applicable
WSM.
6. Remove the old IEI label from the rear of the intake manifold. (See Figure 2.)
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Figure 2 – Old IEI Label Location – Discard After Removal
7. Destroy the old IEI label (by cutting up or shredding) and discard.
8. Clean the indicated area on the underside of the cab with isopropyl alcohol and
dry with a clean, lint free cloth. The receiving surface must be clean, dry, and free
of any contaminants.
9. Install the NEW IEI label on the location shown in Figures 3 and 4.
Install Label Here
Figure 3 – Under Cab IEI Label Location
Figure 4 – Under Cab IEI Label Location
10. Remove the safety pin, lower the cab and properly lock it in place per the
instructions in the applicable WSM.
11. Proceed to Applying the Campaign Label.
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APPLYING THE CAMPAIGN LABEL
12. Using a ball-point pen, fill in a campaign label (Part No. 2-90028-700-0) with
Campaign Number V21072, Isuzu dealer code, and repair date.
13. Affix the campaign label onto the driver's side B-pillar.
CALIFORNIA VEHICLES ONLY
When a California emissions campaign is completed by an Isuzu 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. As set forth in the sample owner notification letter below, the
owner will need to submit the Correction Certificate to the DMV only if the DMV requests
it. Otherwise, we recommend that owners keep the Certificate for their records.
Example, Proof of Correction Certificate
CLAIM INFORMATION
Refer to the Isuzu ICS Claims Processing Manual for details on Campaign Claim
Submission. Submit only one claim as indicated below.
LABOR CODE
V21072
REPAIR PERFORMED
Install 2 IEI Labels Emissions Campaign
4
LABOR
TIME
0.4
DEALER RESPONSIBILITY
All vehicles in dealers' possession and subject to this recall must be held and
inspected/repaired per the inspection and service procedures of this recall campaign
bulletin before customers take possession of these vehicles.
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. 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 recall enters your vehicle inventory, or is
in your dealership, you must take the steps necessary to be sure the recall correction
has been made before selling or releasing the vehicle.
OWNER NOTIFICATION
Samples of the recall letter that will be sent to owners of affected vehicles already
retailed in the United States and Canada are attached below.
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[SAMPLE OWNER LETTER – US]
VOLUNTARY EMISSIONS RECALL
This notice applies to your vehicle, 
DECEMBER 2021
Dear Customer:
This notice is sent to inform you that Isuzu Commercial Truck of America, Inc. is conducting a voluntary
emission recall that includes your  model year N-Gas Series truck.
CONDITION
General Motors LLC, the manufacturer of the engine in your vehicle, has determined certain  model
year N-Gas Series trucks equipped with a 6.6L gasoline engine may have an Important Engine Information
(IEI) emissions label that is not compliant with the US EPA regulations and must be corrected.
CORRECTION
Your Isuzu dealer will remove the existing IEI label and install new label(s). This service will be performed
for you at no charge.
WHAT YOU SHOULD DO
We recommend that you contact your local Isuzu dealer to schedule an appointment. Although not
necessary, please present this Owner Notification Letter at the time of your appointment or refer to
Campaign Service Bulletin . We estimate that the installation will take up to 25 minutes
to perform. However, additional time may be necessary depending on how appointments are scheduled at
your dealership. To locate the nearest Isuzu dealer you can visit our website at www.isuzucv.com and click
on the dealer locator link and enter your zip code or state. Should you not have access to a computer terminal
please contact our Customer Relations Department by calling 1-866-441-9638.
EMISSION WARRANTY INFORMATION
In order to ensure your full protection under the emission warranty made applicable to your vehicle by State
and Federal Law, it is recommended that you have your vehicle serviced as soon as possible. If not repaired,
the truck may fail an emission inspection test, if your state or local law requires one. In addition, in some
states, completion of an emission recall may be necessary to renew the vehicle’s registration.
CALIFORNIA OWNERS
The State of California requires vehicle emission recalls be completed prior to California registration
renewal. Uncorrected emission recalls will result in the inability to renew your 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 regret any inconvenience this action may cause you.
Sincerely,
Isuzu Commercial Truck of America, Inc.
Important: If you have sold or traded your Isuzu vehicle, please enter the owner's name and address, if known, on the attached "Change of
Information" postcard, tear off at both perforations, and drop it in the mail. Postage has already been paid. We will contact the new owner.
Federal law requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days. Lessor
means a person or entity that is the owner, as reflected on the vehicle title, of any five or more leased vehicles.
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[SAMPLE OWNER LETTER – CANADA]
VOLUNTARY EMISSIONS RECALL
This notice applies to your vehicle, 
 model year ISUZU N-SERIES
DECEMBER 2021
Dear Customer:
This notice is sent to you in accordance with the requirements of the Canadian Environmental
Protection Act, 1999 (CEPA 1999).
CONDITION
General Motors LLC, the manufacturer of the engine in your vehicle, has determined certain
 model year N-Gas Series trucks equipped with a 6.6L gasoline engine may have an
Important Engine Information (IEI) emissions label that is not compliant with the CEPA 1999 and
US EPA regulations and must be corrected.
This letter is to inform you that Isuzu Commercial Truck of Canada, Inc. has identified your
vehicle,  N-Gas trucks as being involved in this campaign. It has been evaluated
that this does not present a pollution risk to the environment.
CORRECTION
Your Isuzu dealer will remove the existing IEI label and install new label(s). This service will be
performed for you at no charge.
WHAT YOU SHOULD DO
We recommend that you contact your local Isuzu dealer to schedule an appointment. Although not
necessary, please present this Owner Notification Letter at the time of your appointment or refer
to Campaign Service Bulletin . We estimate that the installation will take up to
25 minutes to perform. However, additional time may be necessary depending on how
appointments are scheduled at your dealership. To locate the nearest Isuzu dealer you can visit our
website at www.isuzutruck.ca and click on the dealer locator link and enter your zip code or state.
Should you not have access to a computer terminal please contact our Customer Relations
Department by calling 1-866-441-9638.
We regret any inconvenience this action may cause you.
Sincerely,
Isuzu Commercial Truck of Canada, Inc.
Important: If you have sold or traded your Isuzu vehicle, please enter the owner's name and address, if known, on the attached "Change of
Information" postcard, tear off at both perforations, and drop it in the mail. Postage has already been paid. We will contact the new owner.
Federal law requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days. Lessor
means a person or entity that is the owner, as reflected on the vehicle title, of any five or more leased vehicles.
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