SERVICE PROCEDURE

23519R1
JUNE, 2024
SUBJECT: EMISSIONS RECALL
Exhaust Gas Sensor In-Use Monitor Performance
Ratio (IUMPR) on certain International® HV™, HX®,
LT®, and RH™ Series trucks built 01/05/2022 thru
04/30/2024 with 2022 thru 2024 model year
International® A26 engines.

CUSTOMER LETTER

Print ready (PDF file) copy of the Customer Letter
REASON FOR REVISION

Updates to Labor Information Table

DEFECT DESCRIPTION

This Emissions Recall applies to International® trucks that were built with 2022
thru 2024 model year International® A26 engines. The Exhaust Gas Sensor In-
Use Monitor Performance Ratio (IUMPR) may operate below the prescribed
standard. Under certain conditions this noncompliance may result in an inability
to detect an increase of regulated air pollutants. In addition, the standardized
data for distance traveled under J1939 may be erroneously reported. This recall
will require recalibration of the Engine Control Module (ECM).

MODELS INVOLVED

This Emissions Recall involves certain International? HV™, HX®, LT®, and RH™
Series trucks built 01/05/2022 thru 04/30/2024 with 2022 thru 2024 model year

International® A26 engines.

ELIGIBILITY

This procedure applies ONLY to vehicles marked in the International® Service
Portal™ with Emissions Recall 23519. Also complete any other open campaigns
listed on the Service Portal at this time.

VEHICLE RECALL 23519
© 2024 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 1

TOOLS REQUIRED

Description Tool Number
EZ-Tech® or equivalent N/A
Service Diagnostics Solutions (SDS) N/A
Battery Charger 55 Amp PSC550CC

Table 1 Tools Required

PARTS INFORMATION

There are no parts for this recall.

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 a 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 battery charger / maintainer to vehicle battery.

6. Connect to engine using Service Diagnostics Solutions (SDS).

VEHICLE RECALL 23519
© 2024 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 2

7. Program ECM.

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

PROGRAMMING SOFTWARE

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

Table 2 Programming Software

8. 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.

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

10. Disconnect battery charger / maintainer from vehicle battery.
11. Remove wheel chocks.
Additional Requirements for Vehicles Registered in California

NOTE: The following step is required only for vehicles registered in the
state of California.

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

VEHICLE RECALL 23519
© 2024 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 3

Vehicle Emission Recall - Proof of Correction

0000047743

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

END OF SERVICE PROCEDURE

LABOR INFORMATION

Operation Number Description Time
A40-23519-1 Calibration Current, Programming Not Required 0.2 hrs

A40-23519-2 Calibration Not Current; Reprogram ECM 0.3 hrs
Table 3 Labor Information

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
to the vehicle identification number (VIN) plate.

COMPLETED
Service Location Code #

DO NOT REMOVE

VEHICLE RECALL 23519
© 2024 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 4

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 Emissions Recall 23519.

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.

GROUP NOUN |C | WARR. | TP | PAD

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