Isu
IMPORTANT SERVICE
INFORMATION FOR:
 SERVICE MANAGER
 SERVICE ADVISOR
 TECHNICIAN
 PARTS DEPARTMENT
 WARRANTY PERSONNEL

BULLETIN NUMBER:
CB23-H-001A
ISSUE DATE:
FEBRUARY 2023
GROUP:
BRAKES

IMPORTANT SAFETY RECALL
ANTI-LOCK BRAKE SYSTEM (ABS) & ADVANCED DRIVER
ASSISTANCE SYSTEM (ADAS) RECALIBRATION – 23V-017

CV

(Transport Canada 2023-017)
AFFECTED VEHICLES
•

2022 – 2023MY Isuzu NQR/NRR Diesel Vehicles Produced After
7/26/2021 With RPO Code EM2 or EL5 (200” or 212”
respectively) Wheelbase Factory Modifications

This bulletin supersedes previous campaign bulletin CB23-H-001. This bulletin is being
updated to include US and Canada sample owner letters. Please discard previous
campaign bulletin CB23-H-001.
INFORMATION
CONDITION
Isuzu Motors Limited has decided that a defect, which relates to motor vehicle safety, exists in
certain 2022 - 2023MY Isuzu N-Series Diesel Vehicles produced after 7/26/2021 with RPO
Code EM2 or EL5 (200” or 212” respectively) Wheelbase Factory Modifications. When the
subject vehicles were modified to extend the frame, the Anti-lock Brake System (ABS) module
was not recalibrated to account for the different inputs from the vehicle resulting from the
stretched frame. Therefore, when driving in a curve, the Electronic Stability Control (ESC)
system, working together with the ABS, may react prematurely or be delayed in reacting,
therefore increasing the risk of a crash.
If the vehicle is equipped with the optional Advanced Driver Assistance System (ADAS), the
ADAS camera was also not recalibrated to account for the different inputs from the vehicle
resulting from the stretched frame. Therefore, when driving in a curve with the optional ADAS
system activated, the Automatic Emergency Braking System (AEBS) and its accompanying
warning light may be delayed in reacting and illuminating, also increasing the risk of a crash.
CORRECTION
Isuzu dealers will recalibrate the ABS Control Module with the correct wheelbase length and, for
the subject vehicles equipped with the optional ADAS (RPO I5D), reprogram the Stereo Camera.
This service will be performed free of charge.

VEHICLES INVOLVED
Involved are certain 2022 – 2023MY Isuzu NQR/NRR Diesel Vehicles produced after 7/26/2021
with RPO Code EM2 or EL5 (200” or 212” respectively) Wheelbase Factory Modifications.
Important: Dealers are to confirm vehicle eligibility prior to beginning repairs by using IVIS
(Isuzu Vehicle Information System).
For dealers with involved vehicles, a report of involved vehicles containing the complete vehicle
identification numbers has been or will be provided. Dealers will not have a report available if
they have no involved vehicles currently assigned.
SERVICE PROCEDURE
1. Look up the VIN in the Isuzu Vehicle Information System (IVIS) and confirm the
wheelbase option code and length in the “Vehicle Build” section. (This information will be
needed to complete the ABS recalibration.) For reference, RPO Code EM2 indicates a
200” wheelbase and RPO Code EL5 indicates a 212” wheelbase.
2. Shift vehicle to park, turn off engine, set parking brake, and block rear wheels.
3. Connect IDSS to the vehicle, click on the “Auto Detect” button and then select “Controller
Programming” from the Table of Contents.
4. Select “ABS Setup” under Antilock Brake System and follow the prompts to reprogram
the ABS ECU.
5. When prompted, select the correct wheelbase for the vehicle being programmed from the
drop-down box. See Figure 1.

Figure 1
6. If the vehicle is equipped with ADAS (RPO I5D), select YES from the drop-down box; if
it is not equipped with ADAS (RPO I5D), select NO. See Figure 2.

Figure 2
7. Follow the prompts from IDSS to complete the ABS ECU programming.
8. After the ABS ECU programming is completed:
a. If the vehicle is equipped with ADAS (RPO I5D), proceed to Step 9.
b. If the vehicle is NOT equipped with ADAS (RPO I5D), proceed to Applying the
Campaign Label.

9. Refer to and follow the instructions in the “Stereo Camera Programming” section of the
appropriate Service Manual in IDSS to reprogram the ADAS Stereo Camera.
10. After completing the Stereo Camera Programming, proceed to Applying the Campaign
Label.

APPLYING THE CAMPAIGN LABEL
11. Using a ball-point pen, fill in a campaign label (Part No. 2-90028-700-0) with Campaign
Number 23V-017 (US) or 2023-017 (Canada), Isuzu dealer code, and repair date.
12. Affix the campaign label onto the driver's side B-pillar.

CLAIM INFORMATION
Refer to the Isuzu ICS Claims Processing Manual for details on Campaign Claim Submission.
Submit only one claim as indicated below.
Labor Operation Code
V2301

Description

Labor Time

Wheelbase Factory Modifications ABS ECU
Recalibration Safety Recall

0.4*

ADD: for Stereo Camera Reprogramming

0.9

*Includes 0.1 hours for administrative allowance.
DEALER RESPONSIBILITY
Dealers are to service all vehicles subject to this campaign at no charge to customers, regardless
of mileage, age of the vehicle, or ownership. 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 perform the
required correction according to the instructions contained in this bulletin. Program follow-up
cards should not be used for this purpose since the customers may not as yet have received the
notification letter.
In summary, whenever a vehicle subject to this campaign enters or is in your vehicle inventory,
or is in your dealership for service, you must take the steps necessary to ensure the recall
remedy has been implemented before selling or releasing the vehicle.
Important:
As required by Federal law, dealers are not to deliver any new vehicle in their inventory, which
is covered by a Safety Recall, until the necessary remedy has been performed.
Dealers are to confirm vehicle eligibility prior to beginning repairs by using IVIS (Isuzu Vehicle
Information System). Not all vehicles may be involved.
For dealers with involved vehicles, a listing of involved vehicles containing the complete vehicle
identification numbers has been or will be provided. Dealers will not have a report available if
they have no involved vehicles currently assigned.
OWNER NOTIFICATION
Sample recall letters that are being sent to owners of affected vehicles already retailed in the
United States and Canada are attached below. Recall letters are being mailed to owners Friday,
February 17, 2023.

[SAMPLE OWNER LETTER – US (ABS ONLY)]

IMPORTANT SAFETY RECALL
NHTSA Recall 23V-017

This notice applies to your vehicle,
Dear Customer,

FEBRUARY 2023

This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Your vehicle
model year Isuzu N-Series vehicle is involved in safety recall NHTSA 23V-017.
WHAT IS THE CONDITION?
Isuzu Motors Limited has decided that a defect, which relates to motor vehicle safety, exists in certain 2022 2023MY Isuzu N-Series Diesel Vehicles produced after 7/26/2021 with RPO Code EM2 or EL5 (200” or 212”
respectively) Wheelbase Factory Modifications. When the subject vehicles were modified to extend the frame, the
Anti-lock Brake System (ABS) module was not recalibrated to account for the different inputs from the vehicle
resulting from the stretched frame. Therefore, when driving in a curve, the Electronic Stability Control (ESC)
system, working together with the ABS, may react prematurely or be delayed in reacting, therefore increasing the
risk of a crash.
WHAT WE WILL DO
Your Isuzu dealer will recalibrate the ABS Control Module with the correct wheelbase length. This service will be
performed free of charge.
WHAT YOU SHOULD DO
We recommend that you contact your 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 CB23H-001A. We estimate that the remedy may take up to 24 minutes to perform. To locate the nearest Isuzu dealer,
you can visit our website at www.isuzucv.com or contact our Customer Relations Department at the number listed
below.
Isuzu Commercial Truck of America
Customer Relations
1-866-441-9638
If you have any difficulty having this recall performed, we recommend that you call Isuzu customer relations at 1866-441-9638. If you are still not satisfied that we have remedied this situation without charge, and within a
reasonable amount of time, you may wish to write to the Administrator of the National Highway Traffic Safety
Administration, 1200 New Jersey Avenue, SE, Washington DC 20590, or call the agency’s toll-free Vehicle Safety
Hotline at 1-888-327-4236 (TTY: 1-800-424-9153) or go to http://www.nhtsa.gov.
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.

[SAMPLE OWNER LETTER – US (ABS & ADAS)]

IMPORTANT SAFETY RECALL
NHTSA Recall 23V-017

This notice applies to your vehicle,
Dear Customer,

FEBRUARY 2023

This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Your vehicle
model year Isuzu N-Series vehicle is involved in safety recall NHTSA 23V-017.
WHAT IS THE CONDITION?
Isuzu Motors Limited has decided that a defect, which relates to motor vehicle safety, exists in certain 2022 2023MY Isuzu N-Series Diesel Vehicles produced after 7/26/2021 with RPO Code EM2 or EL5 (200” or 212”
respectively) Wheelbase Factory Modifications. When the subject vehicles were modified to extend the frame, the
Anti-lock Brake System (ABS) module and Advanced Driver Assistance System (ADAS) camera were not
recalibrated to account for the different inputs from the vehicle resulting from the stretched frame. Therefore, when
driving in a curve, the Electronic Stability Control (ESC) system, working together with the ABS, may react
prematurely or be delayed in reacting and with the ADAS system activated, the Automatic Emergency Braking
System (AEBS) and its accompanying warning light may be delayed in reacting and illuminating, therefore
increasing the risk of a crash.
WHAT WE WILL DO
Your Isuzu dealer will recalibrate the ABS Control Module and ADAS Stereo Camera. This service will be
performed free of charge.
WHAT YOU SHOULD DO
We recommend that you contact your 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 CB23H-001A. We estimate that the remedy may take up to 1 hour 18 minutes to perform. Additional time will be
necessary if the engine needs to be repaired or replaced. To locate the nearest Isuzu dealer, you can visit our website
at www.isuzucv.com or contact our Customer Relations Department at the number listed below.
Isuzu Commercial Truck of America
Customer Relations
1-866-441-9638
If you have any difficulty having this recall performed, we recommend that you call Isuzu customer relations at 1866-441-9638. If you are still not satisfied that we have remedied this situation without charge, and within a
reasonable amount of time, you may wish to write to the Administrator of the National Highway Traffic Safety
Administration, 1200 New Jersey Avenue, SE, Washington DC 20590, or call the agency’s toll-free Vehicle Safety
Hotline at 1-888-327-4236 (TTY: 1-800-424-9153) or go to http://www.nhtsa.gov.
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.

[SAMPLE OWNER LETTER – CANADA (ABS ONLY)]

IMPORTANT SAFETY RECALL
This notice applies to your vehicle,
model year ISUZU N-SERIES

FEBRUARY 2023
Dear Customer,
This notice is sent to you in accordance with the requirements of the Motor Vehicle Safety Act. This is to inform
you that your vehicle may contain a defect that could affect the safety of a person. Safety Recall Transport
Canada 2023-017.
WHAT IS THE CONDITION?
Isuzu Motors Limited has decided that a defect, which relates to motor vehicle safety, exists in certain 2022 2023MY Isuzu N-Series Diesel Vehicles produced after 7/26/2021 with RPO Code EM2 or EL5 (200” or 212”
respectively) Wheelbase Factory Modifications. When the subject vehicles were modified to extend the frame, the
Anti-lock Brake System (ABS) module was not recalibrated to account for the different inputs from the vehicle
resulting from the stretched frame. Therefore, when driving in a curve, the Electronic Stability Control (ESC)
system, working together with the ABS, may react prematurely or be delayed in reacting, therefore increasing the
risk of a crash.
WHAT WE WILL DO
Your Isuzu dealer will recalibrate the ABS Control Module with the correct wheelbase length. This service will be
performed free of charge.
WHAT YOU SHOULD DO
We recommend that you contact your 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 CB23H-001A. We estimate that the remedy may take up to 24 minutes to perform. To locate the nearest Isuzu dealer,
you can visit our website at www.isuzutruck.ca or contact our Customer Relations Department at the number listed
below.
Isuzu Commercial Truck of Canada
Customer Relations
1-866-441-9638
If you have questions or concerns that your Isuzu dealer is unable to answer, please contact our Customer Relations
Department at 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.