SERVICE PROCEDURE

22504
AUGUST 2022

SUBJECT: EMISSIONS RECALL

Navistar has decided that a defect which relates to engine
emissions exists in certain International® HV", HX®, LT®, and RH™
Series trucks built 15 March 2017 thru 16 December 2021 with 2017
thru 2021 model year International® A26 engines

CUSTOMER LETTER

Print ready (PDF file) copy of the Customer Letter
DEFECT DESCRIPTION

This Emissions Recall applies to truck models that were built with 2017, 2018, 2019,
2020, and 2021 A26 engines. Under certain conditions, the Engine Control Module
(ECM) programming may not detect when the Exhaust Gas Recirculation (EGR) flow
exceeds the predetermined threshold, resulting in not setting a fault code and activating
the Malfunction Indicator Light (MIL).

MODELS INVOLVED

This Emissions Recall involves certain International® HV™, HX®, LT®, and RH™ Series
trucks built 15 March 2017 thru 16 December 2021 with 2017 thru 2021 model year
International® A26 engines.

ELIGIBILITY

This procedure applies ONLY to vehicles marked in the International® Service Portal&™
with safety recall 22504. Also complete any other open campaigns listed on the Service
Portal at this time.

TOOLS REQUIRED

Description Tool Number
EZ-Tech® or equivalent N/A

Service Diagnostics Solutions (SDS) N/A

Battery Charger 55 Amp PSC550CC

VEHICLE RECALL 22504
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PARTS INFORMATION
No parts required.

SERVICE PROCEDURE

WARNING! To prevent personal injury and / or death, or damage to property, park

vehicle on hard flat surface, turn the engine off, set the parking brake and install
wheel chocks to prevent the vehicle from moving in either direction.

WARNING! To prevent personal injury and / or death, always wear safe eye
protection when performing vehicle maintenance.

WARNING! To prevent personal injury and / or death, or damage to property, allow
engine / vehicle components to cool before servicing.

WARNING! To prevent personal injury and / or death, or damage to property, keep
flames or sparks away from vehicle and do not smoke while servicing the
vehicle’s batteries. Batteries expel explosive gases.

1. Park vehicle on flat surface.
2. Shift transmission to Park or Neutral and set parking brake.

3. Turn vehicle ignition to Key OFF position.

4. Install wheel chocks.

5. Connect to engine using Service Diagnostics Solutions (SDS).
6. Review calibration status in SDS.

a. If calibration indicates that calibration is NOT CURRENT, ECM must be
reprogrammed to raise calibration to latest level. Proceed to Step 7.

b. If calibration indicates that calibration is CURRENT, ECM does not need to be
reprogrammed.

i. No further action is required for dealers and customers operating outside
California. Proceed to Step 10.

ii. Dealers and customers operating in California should proceed to Step 10
but must also perform Step 13.

VEHICLE RECALL 22504
© 2022 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 2
7. Connect battery charger / maintainer to vehicle battery.

8. Program ECM.

NOTE: The document listed in the table below contains general information
about each reprogramming method and software.

Programming Method Programming and Troubleshooting
Instructions
SDS Service Diagnostics Solutions User
Guide 4328790

NOTE: Clear all inactive / previously active faults after programming. Only
perform diagnostics or procedures on ACTIVE faults.

9. If assistance is needed, International® dealers should contact Vehicle
Programming by creating an iKNow case file. Customers should contact Vehicle
Programming by calling 1-800-336-4500, options 3, 4,1.

NOTE: Clear all inactive / previously active faults after programming. Only
perform diagnostics or procedures on ACTIVE faults.

10. If any inactive / previously active faults are found after programming, clear them
from ECM. Only perform diagnostics or procedures on active faults.

11. Disconnect battery charger / maintainer from vehicle battery.
12. Remove wheel chocks.
Additional Requirements for Dealers and Customers Operating in California

NOTE: The following step is required only for dealers and customers
operating in the state of California.

13. After completing this recall, dealer must fill out salmon-colored Proof of
Correction certificate and provide a copy to customer.

VEHICLE RECALL 22504
© 2022 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 3

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Figure 1. DMV Certificate, Salmon (Print on 8.5 x 11 inch White Paper).

END OF SERVICE PROCEDURE

VEHICLE RECALL 22504

© 2022 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.
LABOR INFORMATION

Operation Number Description Time
A40-22504-1 Calibration Current; Programming Not Required 0.2 hrs
A40-22504-2 Check Calibration and Reprogram ECM 0.5 hrs

CAMPAIGN IDENTIFICATION LABEL

Each vehicle corrected in accordance with this
campaign must be marked with a CTS-1075
Campaign Identification Label.

DO NOT REMOVE

INTERNATIONAL

Campaign No.
Complete the label and attach on a clean surface next vIN
to the vehicle identification number (VIN) plate. Eng.

COMPLETED
Service Location Gade #

DO NOT REMOVE

ADMINISTRATIVE / DEALER RESPONSIBILITIES

WARRANTY CLAIMS

Warranty claim expense is to be charged to Warranty. Claims are to be submitted in the
normal manner, making reference to Safety Recall 22504.

Section 7 of the Warranty Policy and Procedures Manual contains further information
related to the submission and processing of AFC / Recall claims.

As with all claim submissions, items acquired locally must be submitted in the “Other
Charges” tab. The cost of any bulk items (such as a bag of cable tie straps, roll of wire,
barrel of oil, or tube of silicone) should be prorated for the cost of the individual pieces /
amount used during each repair.

VEHICLE RECALL 22504
© 2022 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 5

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