IMPORTANT SERVICE
INFORMATION FOR:

BULLETIN NUMBER:
CB22-J-002A

✓ SERVICE MANAGER
✓ SERVICE ADVISOR
✓ TECHNICIAN
✓ PARTS DEPARTMENT
✓ WARRANTY PERSONNEL

ISSUE DATE:
AUGUST 2022
GROUP:
ENGINE

CV

IMPORTANT SAFETY RECALL
ENGINE EXHAUST BRAKE REPROGRAMMING – 22V-508
AFFECTED VEHICLES
•

2022MY Isuzu F-Series Vehicles (See affected 11 VINs below)

This bulletin supersedes previous campaign bulletin CB22-J-002. This bulletin is being
updated to include a sample of the US owner letter. Please discard previous campaign
bulletin CB22-J-002.
INFORMATION
CONDITION
Isuzu Motors Limited has decided that a defect exists in certain 2022 model year Isuzu F-Series
vehicles. Due to a software calibration error, the affected vehicles were built without engine
exhaust braking functionality. Without engine braking, a driver may experience longer stopping
distances than expected, increasing the risk of a crash.
CORRECTION
Isuzu dealers will have the Cummins Engine Control Module (ECM) reprogrammed with the
correct calibration setting for the engine exhaust brake. This service will be performed free of
charge.
VEHICLES INVOLVED
Involved are certain 2022MY Isuzu F-Series vehicles (See affected 11 VINs below)
Model

Vehicle ID No.

Engine Serial Number

Model

Vehicle ID No.

Engine Serial Number

FTR

54DK6S1F1NSA50583

74884120

FTR

54DK6S1F6NSA50627

74886734

FTR

54DK6S1F1NSA50602

74885423

FTR

54DK6S1F7NSA50586

74884123

FTR

54DK6S1F9NSA50637

74881280

FTR

54DK6S1F7NSA50636

74882861

FVR

54DM6S1F9NSB50603

74885431

FTR

54DK6S1F7NSA50961

74884103

FTR

54DK6S1F2NSA50608

74885435

FTR

54DK6S1F4NSA50609

74885425

FTR

54DK6S1F2NSA50642

74881312

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. Confirm the VIN is an affected vehicle in IVIS.
2. Contact the local Cummins Certified Service location to have the ECM reprogrammed per
the procedure below.
a. If you (the Isuzu dealer) are also a Cummins Certified Service location, this
procedure should be performed at your location, as you are the closest Cummins
Certified Service location.
b. If you (the Isuzu dealer) are not a Cummins Certified Service location, you should
arrange to have this procedure performed at the closest Cummins Certified
Service location; you can find the closest Cummins Certified Service location on
the web at https://www.cummins.com/locations.
3. Provide the “Procedure” section of this bulletin to the Cummins location to have a Cummins
trained technician reprogram the ECM with the correct Engine Exhaust Brake settings using
the Cummins INSITE tool.
PROCEDURE (to be performed by a Cummins Certified Service location using INSITE)
4. Using the Cummins INSITE tool (version 8.7.1.99 or later), from the Main Screen select
Connect to ECM to establish communication with ECU, and then select Connect.

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5. Select Features and Parameters.

6. Select Engine Brake Control and confirm it is “Enabled”.

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7. If it is not Enabled, select Enable for Engine Brake Control at the drop-down menu.

8. Expand “ENGINE BRAKE CONTROL” by selecting the “+” and ensure “ENGINE BRAKE
LAMP” is DISABLED.

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9. Select FILE and select Send to ECM. Select OK from the Confirm ECM Adjustment pop
up.

10. Follow the following Cummins INSITE instructions to complete download.
a. Key switch off, then click OK.
b. Wait 100 seconds.
c. Key switch on, then click OK.
11. Confirm all parameters were written successfully.

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12. After the ECM reprogramming is completed, the Isuzu dealer must complete the recall by
applying the Campaign Label. Proceed to Applying The Campaign Label.
APPLYING THE CAMPAIGN LABEL
13. Using a ball-point pen, fill in a campaign label (Part No. 2-90028-700-0) with Campaign
Number 22V-508, Isuzu dealer code, and repair date.
14. 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 Code

V2204

Description

Ex. Brake Reprogramming Recall

Labor Hours

Sublet

0.5*

Cummins
Service Repair
Cost**

*Includes 0.1 hours for administrative allowance, coordination with Cummins service location and
campaign label installation.
** Use “Sublet C” for reimbursement of reprogramming expense from the Cummins location. Dealers
must attach the paid invoice, from the Cummins Certified Service Location, to the claim for
reimbursement. If there are other expenses incurred during this process, please contact your DSPM
for additional direction on payment or reimbursement.

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 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.
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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
A sample of the recall letter that will be sent to owners of affected vehicles already retailed in
the United States is attached below.

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[SAMPLE OWNER LETTER – US]

IMPORTANT SAFETY RECALL
NHTSA Recall 22V-508
This notice applies to your vehicle,

SEPTEMBER 2022
Dear Customer,
This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Your vehicle
model year Isuzu F-Series vehicle is involved in safety recall NHTSA 22V-508.
WHAT IS THE CONDITION?
Isuzu Motors Limited has decided that a defect exists in certain 2022 model year Isuzu F-Series vehicles. Due to
a software calibration error, the affected vehicles were built without engine exhaust braking functionality. Without
engine braking, a driver may experience longer stopping distances than expected, increasing the risk of a crash.
WHAT WE WILL DO
Isuzu dealers will have the Cummins Engine Control Module (ECM) reprogrammed with the correct calibration
setting for the engine exhaust brake. 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
CB22-J-002A. We estimate that the reprogramming will take 24 minutes to perform. However, additional time
may be necessary depending on how appointments are scheduled and processed and whether or not your Isuzu
dealership also is a Cummins certified service location. 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
1-866-441-9638. 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.

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