Recall 22509 – Missing Inoperative Collision Mitigation Warning – 2022-2023 IC RE & 2023 IC CE School Buses

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SERVICE PROCEDURE SUBJECT: SAFETY RECALL 22509 JUNE, 2022 BENDIX WINGMAN PREWIRE on certain IC Bus® CE and RE Series school buses built 22 September 2021 thru 15 March 2022 with feature code 000BTXK or 000BTXM (Bendix Wingman Prewire option) CUSTOMER LETTER Print ready (PDF file) copy of the Customer Letter DEFECT DESCRIPTION The suspect vehicles may have been built without the warning label to notify the driver that the collision mitigation system is not operational, as the vehicle was built without a forward radar unit installed. Failure to warn the driver that the collision mitigation system is not operational may increase the risk of a vehicle crash. MODELS INVOLVED This safety recall involves certain IC Bus® CE and RE Series school buses built 22 September 2021 thru 15 March 2022 with feature code 0008TXK or 0008TXM (Bendix Wingman Prewire option). ELIGIBILITY This procedure applies ONLY to vehicles marked in the International® Service Portal5M with Safety Recall 22509. Also complete any other open campaigns listed on the Service Portal at this time. PARTS INFORMATION Part Number Part Description Quantity Shipped with Customer Notice Warning Label 1 Per Vehicle VEHICLE RECALL 22509 © 2022 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 1 SERVICE PROCEDURE WARNING! To prevent personal mJury 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, 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. Figure 1. CE Bus 1. Radar installed VEHICLE RECALL 22509 0000474546 © 2022 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 2 00004745’47 Figure 2. RE Bus 1. Radar installed 5. Determine if forward radar unit is installed at center of front bumper. a. If radar unit is installed (CE Bus Figure 1, Item 1 / RE Bus Figure 2, Item 1 ), no additional action is required. Proceed to Step 13. b. If radar unit is not installed, proceed to Step 6. VEHICLE RECALL 22509 © 2022 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 3 1 2 0000474548 Figure 3. Camera Location 1. Camera 2. Label 6. Determine if camera is installed, located at center top section of front windshield. a. If camera is installed and no label is present, clean back of camera and install label (Figure 3, Item 2). Proceed to Step 13. b. If camera is installed and there is a label on camera, proceed to Step 13. c. If camera is not installed, proceed to Step 7 (CE Bus without manual door), or Step 9 (CE Bus with manual door), or Step 11 (RE Bus). VEHICLE RECALL 22509 © 2022 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 4 1 2 3 0000474549 Figure 4. CE Bus without Manual Door 1 . Dash panel 2. Park brake knob 3. Label 7. For CE Buses WITHOUT manual door, determine if warning label (Figure 4, Item 3) is located below park brake knob (Figure 4, Item 2). a. If label is installed, no additional action is required; proceed to Step 13. b. If label is not installed, proceed to Step 8. 8. Clean dash panel (Figure 4, Item 1) located adjacent to park brake knob (Figure 3, Item 2) and install label (Figure 4, Item 3). Proceed to Step 13. VEHICLE RECALL 22509 © 2022 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 5 2 3 0000474550 Figure 5. CE Bus with Manual Door 1. Dash panel 2. Park brake knob 3. Label 9. For CE Bused WITH manual door, determine if warning label (Figure 5, Item 3) is located adjacent to park brake knob (Figure 5, Item 2). a. If label is installed, proceed to Step 13. b. If label is not installed, proceed to Step 10. 10. Clean dash panel (Figure 5, Item 1) located adjacent to park brake knob (Figure 5, Item 2) and install label (Figure 5, Item 3). Proceed to Step 13. VEHICLE RECALL 22509 © 2022 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 6 2 3 Figure 6. RE Bus 1 . Dash panel 2. Park brake knob 3. Label 0000474551 11. For RE Buses, determine if warning label (Figure 6, Item 3) is located adjacent to park brake knob (Figure 5, Item 2). a. If label is installed, no additional action is required; proceed to Step 13. b. If label is not installed, proceed to Step 12. 12. Clean dash panel (Figure 5, Item 1) located adjacent to park brake knob (Figure 6, Item 2) and install label (Figure 6, Item 3). Proceed to Step 13. 13. Remove wheel chocks. END OF SERVICE PROCEDURE LABOR INFORMATION Operation Number Description Time A40-22509-1 Inspect and / or Install Label 0.3 hrs VEHICLE RECALL 22509 © 2022 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 7 CAMPAIGN IDENTIFICATION LABEL Each vehicle corrected in accordance with this campaign must be marked with a CTS-1075 Campaign Identification Label. Complete the label and attach on a clean surface next to the vehicle identification number (VIN) plate. ADMINISTRATIVE/ DEALER RESPONSIBILITIES WARRANTY CLAIMS COMPLETED Service Location Code # Warranty claim expense is to be charged to Warranty. Claims are to be submitted in the normal manner, making reference to Safety Recall 22509. 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 GROUP – Enter nu mber NOUN – Leave b lank ~ ~ +– I – C (CAUSE) – Ente r either 1, 2, 3. (See below) 1. Inspected (No repair required). 2. Inspected and repaired. 3. Defective part from parts stock. arranty Code) Enter 40. ~ I WARRANTY – (W TYPE PART – En PAD-Enter 1)() ter P for type part causing failure. ~ VEHICLE RECALL 22509 I ~ ~ NOUN C WARR. TP PAD I I I I 0000047910 © 2022 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 8 UNITED STATES AND POSSESSIONS The National Traffic and Motor Vehicle Safety Act, as amended, provides that each vehicle that is subject to a vehicle recall campaign must be adequately repaired within a reasonable time after the owner has tendered it for repair. A failure to adequately repair within 60 days after a tender of a vehicle is prima facie evidence of failure to repair within a reasonable time. If the condition is not adequately repaired within 60 days, the owner may be entitled to replacement with an identical or reasonable equivalent vehicle at no charge, or to a refund of the purchase price less a reasonable allowance for depreciation. Dealers must correct all vehicles subject to this campaign at no charge to the owner, regardless of mileage, age of vehicle, or ownership, from this time forward. Dealers should proceed immediately to make necessary correction to units in inventory. All inventory vehicles subject to this recall campaign must be corrected prior to sale, transfer or delivery. If vehicles have been sold or transferred and you are in receipt of Customer Notification Letters and Authorization for Recall Service cards for those vehicles, the transfer location or customer must be notified immediately from your dealer location. Dealers must make every effort to promptly schedule an appointment with each owner to repair his or her vehicle as soon as possible. However, consistent with the customer notification, dealers are expected to complete the repairs on the mutually agreed upon service date. Dealers involved in the recall process will be furnished a listing of owner names and addresses to enable them to follow up with owners and have the vehicles corrected. Use of this listing must be limited to this campaign because the list may contain information obtained from state motor vehicle registration records, and the use of such motor vehicle registration data for purposes other than this campaign is a violation of law in several states. CANADA Dealers must correct all vehicles subject to this campaign at no charge to the owner, regardless of mileage, age of vehicle, or ownership, from this time forward. Dealers should proceed immediately to make necessary correction to units in inventory. All inventory vehicles subject to this recall campaign must be corrected prior to sale, transfer or delivery. If vehicles have been sold or transferred and you are in receipt of Customer Notification Letters and Authorization for Recall Service cards for those vehicles, the transfer location or customer must be notified immediately from your dealer location. VEHICLE RECALL 22509 © 2022 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 9 Dealers must make every effort to promptly schedule an appointment with each owner to repair his or her vehicle as soon as possible. However, consistent with the customer notification, dealers are expected to complete the repairs on the mutually agreed upon service date. Dealers involved in the recall process will be furnished a listing of owner names and addresses to enable them to follow up with owners and have the vehicles corrected. Use of this listing must be limited to this campaign because the list may contain information obtained from state motor vehicle registration records, and the use of such motor vehicle registration data for purposes other than this campaign is a violation of law in several states. EXPORT Export Distributors should proceed immediately to make necessary correction to units in inventory. All inventory vehicles subject to this recall campaign must be corrected prior to sale, transfer or delivery. If vehicles have been sold or transferred and you are in receipt of Customer Notification Letters and Authorization for Recall Service cards for those vehicles, the transfer location or customer must be notified immediately from your distributor location. Export Distributors are to submit warranty claims in the usual manner making reference to this recall number. Export Distributors are expected to provide full cooperation and follow-up with respect to this important subject matter. If you have any questions or need further assistance, please contact the Regional Service Manager at your regional office. NAVISTAR, INC. VEHICLE RECALL 22509 © 2022 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 10

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IC Bus, LLC 2701 Navistar Drive Lisle, IL 60532 USA navistar.com IMPORTANT SAFETY RECALL 22509 NHTSA RECALL NO. 22V-283 This notice applies to your vehicle identified on the enclosed card. JUNE 2022 Dear IC Bus Customer, This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. IC Bus has decided that a defect which relates to motor vehicle safety exists in certain 2022 and 2023 CE and RE school buses built 09/22/2021 thru 03/15/2022 with feature code 0008TXK or 0008TXM (Bendix Wingman Prewire option). REASON FOR THIS RECALL The suspect vehicles may have been built without the warning label to notify the driver that the collision mitigation system is not operational, as the vehicle was built without a forward radar unit installed. RISK TO MOTOR VEHICLE SAFETY Failure to warn the driver that the collision mitigation system is not operational may increase the risk of a vehicle crash. DEFECT REMEDY The repair will involve installing the enclosed label on your vehicle if there is no forward radar unit installed. ACTIONS YOU SHOULD TAKE 1. Park your vehicle on a flat level surface, set the transmission to park or neutral. 2. Set the parking brake and turn ignition key to OFF position. Figure 1 1 Radar Installed Figure 2 1 Radar Not Installed 3. Inspect to see if forward radar unit is installed at center of front bumper. a. If radar unit is installed (Figure 1, Item 1), no additional action is required. b. If radar unit is not installed (Figure 2, Item 1), proceed to next Step. Figure 3 1 Camera 2 Label 4. Inspect for camera (Figure 3, Item 1) mounted to center top section of windshield. a. Camera is present. Clean back of camera and install label (Figure 3, Item 2). 1 1 1 2 SAFETY RECALL 22509 JUNE 2022 NHTSA RECALL NO. 22V-283 b. Camera is not present (Figure 3, Item 2). Proceed to Step 5 (CE without manual door) or Step 6 (CE with manual door) or Step 7 (RE bus). Figure 4 1 Dash Panel 2 Brake Knob 3 Label 5. For CE bus without manual door, clean dash panel (Figure 4, Item 1) below park brake knob (Figure 4, Item2) and install label (Figure 4, Item 3). Figure 5 1 Dash Panel 2 Brake Knob 3 Label 6. For CE bus with manual door, clean the dash panel to the right of park brake knob and install label. Figure 6 1 Dash Panel 2 Brake Knob 3 Label 7. For RE series buses, clean dash panel (Figure 6, item 1) to lower right of park brake knob (Figure 6, item 2) and install label (Figure 6, item 3). IF YOU NEED ASSISTANCE If you need assistance inspecting for the radar unit or installing the decal, take the decal and your bus to your nearest International dealer and they will perform the inspection and possible installation of the decal at no charge. Navistar requests your prompt attention and patience regarding the correction of this defect and apologizes for any inconvenience this may cause you. Navistar, Inc. IC Bus, LLC 1 2 3 1 2 3 1 2 3

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-283 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Navistar, Inc. Submission Date : APR 27, 2022 NHTSA Recall No. : 22V-283 Manufacturer Recall No. : 22509 Manufacturer Information : Manufacturer Name : Navistar, Inc. Address : 2701 Navistar Drive Lisle IL 60532 Company phone : 331-332-1590 Population : Number of potentially involved : 337 Estimated percentage with defect : 5 % Vehicle Information : Vehicle 1 : 2022-2023 IC RE School bus Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : • The suspect population is identified by models equipped with feature code 0008TXK or 0008TXM (Bendix Wingman Prewire Option). • The inclusive dates of manufacture were determined when Navistar temporarily substituted the prewire option during manufacturing. • The vehicles in the suspect population were built with feature code 0008TXK or 0008TXM (Bendix Wingman Prewire Option) and all other similar vehicles were not built with this feature. There are 55 RESB in the suspect population. Production Dates : SEP 28, 2021 – MAR 15, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2023-2023 IC CE School bus Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : • The suspect population is identified by models equipped with feature code 0008TXK or 0008TXM (Bendix Wingman Prewire Option). • The inclusive dates of manufacture were determined when Navistar temporarily substituted the prewire option during manufacturing. • The vehicles in the suspect population were built with feature code 0008TXK or 0008TXM (Bendix Wingman Prewire Option) and all other similar vehicles were not built with this feature. There are 282 CESB in the suspect population Production Dates : SEP 22, 2021 – MAR 15, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-283 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Defect : Description of the Defect : The suspect vehicles may have been built without the required warning label to notify the driver that the collision mitigation system is not operational, as the vehicle was built without a forward radar unit installed. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : Failure to warn the driver that the collision mitigation system is not operational may increase the risk of a vehicle crash. Description of the Cause : The vehicles may have been shipped without the required warning label. Identification of Any Warning that can Occur : None Involved Components : Component Name 1 : Warning Label Component Description : Product Graphic; Radar Omit Warning Component Part Number : 4362687C1 Supplier Identification : Component Manufacturer Name : N/A Address : NR NR Country : NR Chronology : • 03/21/2022 – Navistar Compliance is notified that certain vehicles missing a forward radar due to part shortages may have been shipped without the warning label advising the driver the collision mitigation system is not operational. • 03/22/2022 – After reviewing the issue with Aftersales, a ship hold is created for the assembly plants to verify that units without a forward radar due to part shortages were properly prepared for shipment. • 03/28/2022 –Issue contained in manufacturing by releasing a ‘pre-wire’ package which allows vehicles to be safely operated without a forward radar. This package contains the warning label advising the driver the collision mitigation system is not operational. Part 573 Safety Recall Report 22V-283 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 • 3/28/22 Navistar engineering conducts a study to determine what warning may exist to the driver if the forward radar is missing and there is no label warning driver of this condition. • 3/29/22 Inspections completed at manufacturing facilities indicate all units onsite were correctly prepared for shipment with the warning label installed. • 4/7/22 Navistar engineering completes the study and finds normal dash warnings lamps and messages may be present to the driver indicating the collision mitigation system is not operational. • 04/14/2022 through 04/20/2022 – Navistar reviews plant shipping and inspection data to finalize the suspect population of vehicles that were potentially shipped without a warning label. • 04/21/2022 – Navistar declares a Safety Recall; the aim being to ensure the driver has multiple indications the collision mitigation system is not operational. Description of Remedy : Description of Remedy Program : • Navistar will mail the warning label with installation instructions to affected vehicle owners. • A plan for reimbursement of pre-notification remedies is not needed as all the vehicles are within their original warranty period. How Remedy Component Differs from Recalled Component : The label was not installed at time of manufacture. Identify How/When Recall Condition was Corrected in Production : 03/28/2022 – Issue contained in manufacturing by releasing a ‘pre-wire’ package which allows vehicles to be safely operated without a forward radar. This package contains the warning label advising the driver the collision mitigation system is not operational. Recall Schedule : Description of Recall Schedule : it is estimated that the Customer and Dealer notification letters will be mailed by 06/24/2022. Planned Dealer Notification Date : JUN 24, 2022 – JUN 24, 2022 Planned Owner Notification Date : JUN 24, 2022 – JUN 24, 2022 * NR – Not Reported

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