Insufficient Clearance Between Cable and Fuel Line – 2022-2023 Blue Bird Vision Transit Buses

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BLUE BIRD BODY COMPANY 3920 Arkwright Road, Suite 200, Macon, GA 31210 – (478) 825-2021 R22CB IMPORTANT SAFETY RECALL NOTICE (Interim Notice) NHTSA Recall Number: 22V-739 School Bus NHTSA Recall Number: 22V-740 Non-School Bus DATE: November 30, 2022 SUBJECT: R22CB: 7.3L Gas Supply Line And Shifter Cable Interference Dear Blue Bird Owner: This notice applies to your bus(es) identified by both Blue Bird Body Number and Vehicle Identification Number (VIN) on the enclosed yellow cover sheet. If you no longer own the subject bus(es), please complete the appropriate section of the yellow cover sheet and return to Blue Bird in the enclosed pink postage prepaid envelope. This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. Blue Bird Body Company has decided that a defect which relates to motor vehicle safety exists in:  Certain model year 2022 through 2023 Blue Bird Vision School Buses o manufactured from May 3, 2021 through June 16, 2022  Certain model year 2022 through 2023 Blue Bird Vision Non-School Buses o manufactured from June 11, 2021 through February 25, 2022 On the subject buses, it has been determined that certain Blue Bird Vision (BBCV) School and Non-School Buses equipped with 7.3L gasoline powered engines have a potential for the transmission shift cable to have insufficient clearance to the gasoline fuel supply line at the left rear corner of the engine. The transmission shift cable may come in physical contact with the gasoline fuel line at the rear of the engine. This inadvertent contact could abrade the gasoline fuel line and cause potential leaks. Additionally, some units may be missing the heat shield bracket, which is used to secure the shift cable. Potential interference could cause leak(s) of pressurized gasoline within the approximate area of the hot surfaces of the engine and could increase risk of a fire. Corrective Action: To correct this condition, affected vehicles will need to be inspected and repaired, per R22CB Recall Instructions. The shift cable will need to be inspected and/or properly routed. The affected units will need to be inspected for this condition and possibly rerouted if any signs of a wear are observed. Blue Bird will reimburse the labor cost of the repair related to this recall at no cost to the vehicle owner. Please contact your local Blue Bird dealer to arrange to have the Recall performed. To locate an authorized dealer, search online at www.blue-bird.com/find-a-dealer You may request parts at [email protected] Parts will be available on or before January 24, 2023. Labor Reimbursement: Blue Bird will reimburse the labor cost of the repairs related to this recall at no cost to you the vehicle owner. The standard repair time (SRT) to accomplish these repairs in accordance with the R22CB remedy procedure(s) is outlined below. The remedy would be comprised of Repair A, or Repair A in combination with Repair B, Repair C and/or Repair D based on the inspection findings. BLUE BIRD BODY COMPANY 3920 Arkwright Road, Suite 200, Macon, GA 31210 – (478) 825-2021 Blue Bird Body Company R22CB Page 2 Labor Reimbursement: (continued) Repair A: Inspection Only: 0.2 Hours (12 minutes) Repair B: Re-routing Shift Cable: 0.3 Hours (18 minutes) Repair C: Install Brackets: 0.3 Hours (18 minutes) Repair D: Fuel Line Replacement: 0.7 Hours (42 minutes) Administering the Recall and Parts: Parts to complete Recall R22CB will be available on or before January 24, 2023. You may request parts through [email protected] Federal law requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days. If the modifications directed by this notification were performed on your bus prior to the receipt of this recall notification, attach a copy of the work order/invoice. Mail the documents in the pink self-addressed postage prepaid envelope included with the pink reply sheet to Blue Bird for warranty consideration. Reimbursements will be made in accordance with the requirements of the National Highway Transportation Safety Act, Title 49 Code of Federal Regulations, Parts 573 and 577. Please contact your local Blue Bird Dealer with any questions regarding this recall campaign. If Blue Bird Body Company should fail to or is unable to remedy this condition without charge to you, you may contact: ADMINISTRATOR NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION 1200 NEW JERSEY AVENUE, SE WASHINGTON, D.C. 20590 Or, you may call The National Highway Traffic Safety Administration toll free at: 1-888-327-4236 TTY 1-800-424-9153 or go to: http:/www.safercar.gov

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BLUE BIRD BODY COMPANY 3920 Arkwright Road, Suite 200, Macon, GA 31210 – (478) 825-2021 R22CB FINAL NOTICE DATE: July 11, 2023 TO: Blue Bird Owners Subject: R22CB: 7.3L Gas Supply Line And Shifter Cable Interference According to our records, we have not received confirmation the above referenced recall, dated February 13, 2023, has been completed. A copy of Recall R22CB is attached. Your buses affected by Recall R22CB are identified by Blue Bird body number and VIN under Section 2 on the enclosed cover sheet. If this is the first time you received notification of Recall R22CB, please read the enclosed notification carefully. Recall R22CB must be completed, as soon as possible. Corrective Action: To correct this condition, affected vehicles will need to be inspected and repaired, per R22CB Recall Instructions. The shift cable will need to be inspected and/or properly routed. The affected units will need to be inspected for this condition and possibly rerouted if any signs of a wear are observed. Blue Bird will reimburse the labor cost of the repair related to this recall at no cost to the vehicle owner. Please contact your local Blue Bird dealer to arrange to have the Recall performed. To locate an authorized dealer, search online at www.blue-bird.com/find-a-dealer Parts to complete Recall R22CB are currently available. You may request parts through [email protected] Labor Reimbursement: Blue Bird will reimburse the labor cost of the repairs related to this recall at no cost to you the vehicle owner. The standard repair time (SRT) to accomplish these repairs in accordance with the R22CB remedy procedure(s) is outlined below. The remedy would be comprised of Repair A, or Repair A in combination with Repair B, Repair C and/or Repair D based on the inspection findings. Repair A: Inspection Only: 0.2 Hours (12 minutes) Repair B: Re-routing Shift Cable: 0.3 Hours (18 minutes) Repair C: Install Brackets: 0.3 Hours (18 minutes) Repair D: Fuel Line Replacement: 0.7 Hours (42 minutes) Thank you for your prompt attention to this matter. BLUE BIRD BODY COMPANY 3920 Arkwright Road, Suite 200, Macon, GA 31210 – (478) 825-2021 R22CB IMPORTANT SAFETY RECALL NOTICE NHTSA Recall Number: 22V-739 School Bus NHTSA Recall Number: 22V-740 Non-School Bus DATE: February 13, 2023 SUBJECT: R22CB: 7.3L Gas Supply Line And Shifter Cable Interference Dear Blue Bird Owner: This notice applies to your bus(es) identified by both Blue Bird Body Number and Vehicle Identification Number (VIN) on the enclosed yellow cover sheet. If you no longer own the subject bus(es), please complete the appropriate section of the yellow cover sheet and return to Blue Bird in the enclosed pink postage prepaid envelope. This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. Blue Bird Body Company has decided that a defect which relates to motor vehicle safety exists in:  Certain model year 2022 through 2023 Blue Bird Vision School Buses o manufactured from May 3, 2021 through June 16, 2022  Certain model year 2022 through 2023 Blue Bird Vision Non-School Buses o manufactured from June 11, 2021 through February 25, 2022 On the subject buses, it has been determined that certain Blue Bird Vision (BBCV) School and Non-School Buses equipped with 7.3L gasoline powered engines have a potential for the transmission shift cable to have insufficient clearance to the gasoline fuel supply line at the left rear corner of the engine. The transmission shift cable may come in physical contact with the gasoline fuel line at the rear of the engine. This inadvertent contact could abrade the gasoline fuel line and cause potential leaks. Additionally, some units may be missing the heat shield bracket, which is used to secure the shift cable. Potential interference could cause leak(s) of pressurized gasoline within the approximate area of the hot surfaces of the engine and could increase risk of a fire. Corrective Action: To correct this condition, affected vehicles will need to be inspected and repaired, per R22CB Recall Instructions. The shift cable will need to be inspected and/or properly routed. The affected units will need to be inspected for this condition and possibly rerouted if any signs of a wear are observed. Blue Bird will reimburse the labor cost of the repair related to this recall at no cost to the vehicle owner. Please contact your local Blue Bird dealer to arrange to have the Recall performed. To locate an authorized dealer, search online at www.blue-bird.com/find-a-dealer You may request parts at [email protected] Parts are currently available. Labor Reimbursement: Blue Bird will reimburse the labor cost of the repairs related to this recall at no cost to you the vehicle owner. The standard repair time (SRT) to accomplish these repairs in accordance with the R22CB remedy procedure(s) is outlined below. The remedy would be comprised of Repair A, or Repair A in combination with Repair B, Repair C and/or Repair D based on the inspection findings. BLUE BIRD BODY COMPANY 3920 Arkwright Road, Suite 200, Macon, GA 31210 – (478) 825-2021 Blue Bird Body Company R22CB Page 2 Labor Reimbursement: (continued) Repair A: Inspection Only: 0.2 Hours (12 minutes) Repair B: Re-routing Shift Cable: 0.3 Hours (18 minutes) Repair C: Install Brackets: 0.3 Hours (18 minutes) Repair D: Fuel Line Replacement: 0.7 Hours (42 minutes) Administering the Recall and Parts: Parts to complete Recall R22CB are currently available. You may request parts through [email protected] Federal law requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days. If the modifications directed by this notification were performed on your bus prior to the receipt of this recall notification, attach a copy of the work order/invoice. Mail the documents in the pink self-addressed postage prepaid envelope included with the pink reply sheet to Blue Bird for warranty consideration. Reimbursements will be made in accordance with the requirements of the National Highway Transportation Safety Act, Title 49 Code of Federal Regulations, Parts 573 and 577. Please contact your local Blue Bird Dealer with any questions regarding this recall campaign. If Blue Bird Body Company should fail to or is unable to remedy this condition without charge to you, you may contact: ADMINISTRATOR NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION 1200 NEW JERSEY AVENUE, SE WASHINGTON, D.C. 20590 Or, you may call The National Highway Traffic Safety Administration toll free at: 1-888-327-4236 TTY 1-800-424-9153 or go to: http:/www.safercar.gov 1 7.3L SH RECALL R22CB IFT CABLE-GASOLINE FUEL LINE INTERFERENCE Models Affected: Certain 2022 & 2023 Model Year Blue Bird Vision Buses equipped with 7.3L Gasoline engine Issue: In certain vehicles, the transmission shift cable may come in physical contact with the gasoline fuel line at the rear of the engine. This inadvertent contact could abrade the gasoline fuel line and cause potential leaks. Additionally, some units may be missing the heat shield bracket, which is used to secure the shift cable. Corrective Action: Inspect and if action is needed, re-route & secure the transmission shift cable away from the fuel line, per the below instructions. Replace damaged or missing components, as needed. WARNING: Always follow all Federal, State, Local and Shop safety standards and use proper safety equipment, and thoroughly read and understand all instructions before performing these procedures. Park bus on level surface, apply parking brake, turn off ignition key, and chock wheels. Related Tools: Description Tool Number Fuel line disconnect tool Rotunda 310-250 or equivalent Hand tools Side cutters Service Parts: Item Description Part Number Quantity 1 TIE,CABLE,NYLON,BUTTON HD,14.75L X .22W 00024076 1 2 BRACKET,HEAT SHIELD,HYD BRAKE,FORD CV 10062357 1 3 BRACKET,STEEL,MNT,HYD BRAKE 10068143 1 4 NUT,HEX HD,5/16-18,SER WASHER,YEL ZN DICH 00829390 2 5 WASHER,FLAT,5/16 X 3/4 X 5/64,YEL ZN DICH 10029717 2 6 CAPSCREW,HEX HD,5/16-18X7/8,GR8,YEL ZN DICH 00854414 2 7 FUEL LINE,GAS,SUPPLY,SECTION 1 10070231 1 Labor Operations: Repair Description Labor Hours Parts Needed A Inspection 0.2 Hours (12 minutes) No Parts B Re-routing Shift Cable 0.3 Hours (18 minutes) Item 1 C Install Brackets 0.3 Hours (18 minutes) Items 1 – 6 D Fuel Line Replacement 0.7 Hours (42 minutes) Items 1 – 7 Instructions: Step 1: Inspect the left rear corner of the engine from the top, and the bottom. If there is greater than 3” of clearance between the shift cable and the fuel line, no further action is required. Ref. Figure 1 for an example of insufficient clearance. If <3” of clearance, proceed to step 2. CAUTION: DO NOT STEP ON THE ENGINE 2 7.3L SH RECALL R22CB IFT CABLE-GASOLINE FUEL LINE INTERFERENCE Step 2: If vehicle is equipped with an air system, ensure shift cable is routed on the toe-box side of the air bundle. If not routed properly, shift to neutral & secure the chassis. Remove shift cable from transmission bracket and shift arm. CAUTION: For vehicles with transmission park position feature; double check parking brake is set & wheels are chocked prior to shifting to neutral and removing shift cable. Step 3: Verify the heat shield bracket (Item 2), regardless of brake type is in place. Reference Figure 2. If missing, install per Figure 3. Step 4: Verify shift cable is routed properly and secured to the bracket with the HD button cable tie, p/n 00024076 per Figure 3 Step 5: With transmission in neutral, and shifter in neutral, make needed adjustments to the cable trunnion that allows smooth engagement into the transmission shifter arm. Step 6: Carefully inspect the gasoline fuel line. Any physical damage to the fuel line requires replacement. Step 7: If fuel line replacement is necessary, follow the below steps- A- Remove the fuel system fuse. Fuse FH16(NEA), or fuse FB1-2(non-NEA). B- Start the engine and allow it to stall. Attempt to start again until the engine no longer starts. C- Disconnect the battery negative terminal. a. NOTE: Even if equipped with a battery disconnect, remove battery negative terminal. D- Wearing appropriate PPE, lay an absorbent cloth below the fuel line connection at the fuel rail and slowly disconnect the fuel line using Rotunda 310-250 or equivalent. See Figure 4 a. NOTICE: When reusing liquid or vapor tube connectors, make sure to use compressed air to remove any foreign material from the connector retaining clip area before separating from the tube or damage to the tube or connector retaining clip can occur. Apply clean engine oil to the end of the tube before inserting the tube into the connector. b. NOTICE: Fuel injection equipment is manufactured to very precise tolerances and fine clearances. It is essential that absolute cleanliness is observed when working with these components or component damage can occur. Always install plugs to any open orifices or tubes. E- Replace fuel line. Discard fuel laden cloth appropriately. F- Re-connect negative battery terminal and torque to 44-72 in-lbs. G- Install the fuel system fuse. The fuel pump should run for ~3 seconds. Check the system for leaks. If none found, start the engine. Verify no leaks are present. Step 8: Connect IDS or RDT and reset fault codes. Step 9: Open datalogger and monitor TR_DC%. Verify value reports between 40-46% in Neutral. Make necessary shift cable adjustments if out of specification. 3 7.3L SH RECALL R22CB IFT CABLE-GASOLINE FUEL LINE INTERFERENCE Fig 1 Fig 2 4 7.3L SH RECALL R22CB IFT CABLE-GASOLINE FUEL LINE INTERFERENCE Fig 3 5 7.3L SH RECALL R22CB IFT CABLE-GASOLINE FUEL LINE INTERFERENCE Fig 4

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1 7.3L SH RECALL R22CB IFT CABLE-GASOLINE FUEL LINE INTERFERENCE Models Affected: Certain 2022 & 2023 Model Year Blue Bird Vision Buses equipped with 7.3L Gasoline engine Issue: In certain vehicles, the transmission shift cable may come in physical contact with the gasoline fuel line at the rear of the engine. This inadvertent contact could abrade the gasoline fuel line and cause potential leaks. Additionally, some units may be missing the heat shield bracket, which is used to secure the shift cable. Corrective Action: Inspect and if action is needed, re-route & secure the transmission shift cable away from the fuel line, per the below instructions. Replace damaged or missing components, as needed. WARNING: Always follow all Federal, State, Local and Shop safety standards and use proper safety equipment, and thoroughly read and understand all instructions before performing these procedures. Park bus on level surface, apply parking brake, turn off ignition key, and chock wheels. Related Tools: Description Tool Number Fuel line disconnect tool Rotunda 310-250 or equivalent Hand tools Side cutters Service Parts: Item Description Part Number Quantity 1 TIE,CABLE,NYLON,BUTTON HD,14.75L X .22W 00024076 1 2 BRACKET,HEAT SHIELD,HYD BRAKE,FORD CV 10062357 1 3 BRACKET,STEEL,MNT,HYD BRAKE 10068143 1 4 NUT,HEX HD,5/16-18,SER WASHER,YEL ZN DICH 00829390 2 5 WASHER,FLAT,5/16 X 3/4 X 5/64,YEL ZN DICH 10029717 2 6 CAPSCREW,HEX HD,5/16-18X7/8,GR8,YEL ZN DICH 00854414 2 7 FUEL LINE,GAS,SUPPLY,SECTION 1 10070231 1 Labor Operations: Repair Description Labor Hours Parts Needed A Inspection 0.2 Hours (12 minutes) No Parts B Re-routing Shift Cable 0.3 Hours (18 minutes) Item 1 C Install Brackets 0.3 Hours (18 minutes) Items 1 – 6 D Fuel Line Replacement 0.7 Hours (42 minutes) Items 1 – 7 Instructions: Step 1: Inspect the left rear corner of the engine from the top, and the bottom. If there is greater than 3” of clearance between the shift cable and the fuel line, no further action is required. Ref. Figure 1 for an example of insufficient clearance. If <3” of clearance, proceed to step 2. CAUTION: DO NOT STEP ON THE ENGINE 2 7.3L SH RECALL R22CB IFT CABLE-GASOLINE FUEL LINE INTERFERENCE Step 2: If vehicle is equipped with an air system, ensure shift cable is routed on the toe-box side of the air bundle. If not routed properly, shift to neutral & secure the chassis. Remove shift cable from transmission bracket and shift arm. CAUTION: For vehicles with transmission park position feature; double check parking brake is set & wheels are chocked prior to shifting to neutral and removing shift cable. Step 3: Verify the heat shield bracket (Item 2), regardless of brake type is in place. Reference Figure 2. If missing, install per Figure 3. Step 4: Verify shift cable is routed properly and secured to the bracket with the HD button cable tie, p/n 00024076 per Figure 3 Step 5: With transmission in neutral, and shifter in neutral, make needed adjustments to the cable trunnion that allows smooth engagement into the transmission shifter arm. Step 6: Carefully inspect the gasoline fuel line. Any physical damage to the fuel line requires replacement. Step 7: If fuel line replacement is necessary, follow the below steps- A- Remove the fuel system fuse. Fuse FH16(NEA), or fuse FB1-2(non-NEA). B- Start the engine and allow it to stall. Attempt to start again until the engine no longer starts. C- Disconnect the battery negative terminal. a. NOTE: Even if equipped with a battery disconnect, remove battery negative terminal. D- Wearing appropriate PPE, lay an absorbent cloth below the fuel line connection at the fuel rail and slowly disconnect the fuel line using Rotunda 310-250 or equivalent. See Figure 4 a. NOTICE: When reusing liquid or vapor tube connectors, make sure to use compressed air to remove any foreign material from the connector retaining clip area before separating from the tube or damage to the tube or connector retaining clip can occur. Apply clean engine oil to the end of the tube before inserting the tube into the connector. b. NOTICE: Fuel injection equipment is manufactured to very precise tolerances and fine clearances. It is essential that absolute cleanliness is observed when working with these components or component damage can occur. Always install plugs to any open orifices or tubes. E- Replace fuel line. Discard fuel laden cloth appropriately. F- Re-connect negative battery terminal and torque to 44-72 in-lbs. G- Install the fuel system fuse. The fuel pump should run for ~3 seconds. Check the system for leaks. If none found, start the engine. Verify no leaks are present. Step 8: Connect IDS or RDT and reset fault codes. Step 9: Open datalogger and monitor TR_DC%. Verify value reports between 40-46% in Neutral. Make necessary shift cable adjustments if out of specification. 3 7.3L SH RECALL R22CB IFT CABLE-GASOLINE FUEL LINE INTERFERENCE Fig 1 Fig 2 4 7.3L SH RECALL R22CB IFT CABLE-GASOLINE FUEL LINE INTERFERENCE Fig 3 5 7.3L SH RECALL R22CB IFT CABLE-GASOLINE FUEL LINE INTERFERENCE Fig 4

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1 7.3L SH RECALL R22CB-C: IFT CABLE-GASOLINE FUEL LINE INTERFERENCE Models Affected: Certain 2022 & 2023 Model Year Blue Bird Vision Buses equipped with 7.3L Gasoline engine Issue: In certain vehicles, the transmission shift cable may come in physical contact with the gasoline fuel line at the rear of the engine. This inadvertent contact could abrade the gasoline fuel line and cause potential leaks. Additionally, some units may be missing the heat shield bracket, which is used to secure the shift cable. Corrective Action: Inspect and if action is needed, re-route & secure the transmission shift cable away from the fuel line, per the below instructions. Replace damaged or missing components, as needed. WARNING: Always follow all Federal, State, Local and Shop safety standards and use proper safety equipment, and thoroughly read and understand all instructions before performing these procedures. Park bus on level surface, apply parking brake, turn off ignition key, and chock wheels. Related Tools: Description Tool Number Fuel line disconnect tool Rotunda 310-250 or equivalent Hand tools Side cutters Service Parts: Item Description Part Number Quantity 1 TIE,CABLE,NYLON,BUTTON HD,14.75L X .22W 00024076 1 2 BRACKET,HEAT SHIELD,HYD BRAKE,FORD CV 10062357 1 3 BRACKET,STEEL,MNT,HYD BRAKE 10068143 1 4 NUT,HEX HD,5/16-18,SER WASHER,YEL ZN DICH 00829390 2 5 WASHER,FLAT,5/16 X 3/4 X 5/64,YEL ZN DICH 10029717 2 6 CAPSCREW,HEX HD,5/16-18X7/8,GR8,YEL ZN DICH 00854414 2 7 FUEL LINE,GAS,SUPPLY,SECTION 1 10070231 1 Labor Operations: Repair Description Labor Hours Parts Needed A Inspection 0.2 Hours (12 minutes) No Parts B Re-routing Shift Cable 0.3 Hours (18 minutes) Item 1 C Install Brackets 0.3 Hours (18 minutes) Items 1 – 6 D Fuel Line Replacement 0.7 Hours (42 minutes) Items 1 – 7 Instructions: Step 1: Inspect the left rear corner of the engine from the top, and the bottom. If there is greater than 3” of clearance between the shift cable and the fuel line, no further action is required. Ref. Figure 1 for an example of insufficient clearance. If <3” of clearance, proceed to step 2. CAUTION: DO NOT STEP ON THE ENGINE 2 7.3L SH RECALL R22CB-C: IFT CABLE-GASOLINE FUEL LINE INTERFERENCE Step 2: If vehicle is equipped with an air system, ensure shift cable is routed on the toe-box side of the air bundle. If not routed properly, shift to neutral & secure the chassis. Remove shift cable from transmission bracket and shift arm. CAUTION: For vehicles with transmission park position feature; double check parking brake is set & wheels are chocked prior to shifting to neutral and removing shift cable. Step 3: Verify the heat shield bracket (Item 2), regardless of brake type is in place. Reference Figure 2. If missing, install per Figure 3. Step 4: Verify shift cable is routed properly and secured to the bracket with the HD button cable tie, p/n 00024076 per Figure 3 Step 5: With transmission in neutral, and shifter in neutral, make needed adjustments to the cable trunnion that allows smooth engagement into the transmission shifter arm. Step 6: Carefully inspect the gasoline fuel line. Any physical damage to the fuel line requires replacement. Step 7: If fuel line replacement is necessary, follow the below steps- A- Remove the fuel system fuse. Fuse FH16(NEA), or fuse FB1-2(non-NEA). B- Start the engine and allow it to stall. Attempt to start again until the engine no longer starts. C- Disconnect the battery negative terminal. a. NOTE: Even if equipped with a battery disconnect, remove battery negative terminal. D- Wearing appropriate PPE, lay an absorbent cloth below the fuel line connection at the fuel rail and slowly disconnect the fuel line using Rotunda 310-250 or equivalent. See Figure 4 a. NOTICE: When reusing liquid or vapor tube connectors, make sure to use compressed air to remove any foreign material from the connector retaining clip area before separating from the tube or damage to the tube or connector retaining clip can occur. Apply clean engine oil to the end of the tube before inserting the tube into the connector. b. NOTICE: Fuel injection equipment is manufactured to very precise tolerances and fine clearances. It is essential that absolute cleanliness is observed when working with these components or component damage can occur. Always install plugs to any open orifices or tubes. E- Replace fuel line. Discard fuel laden cloth appropriately. F- Re-connect negative battery terminal and torque to 44-72 in-lbs. G- Install the fuel system fuse. The fuel pump should run for ~3 seconds. Check the system for leaks. If none found, start the engine. Verify no leaks are present. Step 8: Connect IDS or RDT and reset fault codes. Step 9: Open datalogger and monitor TR_DC%. Verify value reports between 40-46% in Neutral. Make necessary shift cable adjustments if out of specification. 3 7.3L SH RECALL R22CB-C: IFT CABLE-GASOLINE FUEL LINE INTERFERENCE Fig 1 Fig 2 4 7.3L SH RECALL R22CB-C: IFT CABLE-GASOLINE FUEL LINE INTERFERENCE Fig 3 5 7.3L SH RECALL R22CB-C: IFT CABLE-GASOLINE FUEL LINE INTERFERENCE Fig 4

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BLUE BIRD BODY COMPANY 3920 Arkwright Road, Suite 200, Macon, GA 31210 – (478) 825-2021 R22CB IMPORTANT SAFETY RECALL NOTICE NHTSA Recall Number: 22V-739 School Bus NHTSA Recall Number: 22V-740 Non-School Bus DATE: February 13, 2023 SUBJECT: R22CB: 7.3L Gas Supply Line And Shifter Cable Interference Dear Blue Bird Owner: This notice applies to your bus(es) identified by both Blue Bird Body Number and Vehicle Identification Number (VIN) on the enclosed yellow cover sheet. If you no longer own the subject bus(es), please complete the appropriate section of the yellow cover sheet and return to Blue Bird in the enclosed pink postage prepaid envelope. This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. Blue Bird Body Company has decided that a defect which relates to motor vehicle safety exists in:  Certain model year 2022 through 2023 Blue Bird Vision School Buses o manufactured from May 3, 2021 through June 16, 2022  Certain model year 2022 through 2023 Blue Bird Vision Non-School Buses o manufactured from June 11, 2021 through February 25, 2022 On the subject buses, it has been determined that certain Blue Bird Vision (BBCV) School and Non-School Buses equipped with 7.3L gasoline powered engines have a potential for the transmission shift cable to have insufficient clearance to the gasoline fuel supply line at the left rear corner of the engine. The transmission shift cable may come in physical contact with the gasoline fuel line at the rear of the engine. This inadvertent contact could abrade the gasoline fuel line and cause potential leaks. Additionally, some units may be missing the heat shield bracket, which is used to secure the shift cable. Potential interference could cause leak(s) of pressurized gasoline within the approximate area of the hot surfaces of the engine and could increase risk of a fire. Corrective Action: To correct this condition, affected vehicles will need to be inspected and repaired, per R22CB Recall Instructions. The shift cable will need to be inspected and/or properly routed. The affected units will need to be inspected for this condition and possibly rerouted if any signs of a wear are observed. Blue Bird will reimburse the labor cost of the repair related to this recall at no cost to the vehicle owner. Please contact your local Blue Bird dealer to arrange to have the Recall performed. To locate an authorized dealer, search online at www.blue-bird.com/find-a-dealer You may request parts at [email protected] Parts are currently available. Labor Reimbursement: Blue Bird will reimburse the labor cost of the repairs related to this recall at no cost to you the vehicle owner. The standard repair time (SRT) to accomplish these repairs in accordance with the R22CB remedy procedure(s) is outlined below. The remedy would be comprised of Repair A, or Repair A in combination with Repair B, Repair C and/or Repair D based on the inspection findings. BLUE BIRD BODY COMPANY 3920 Arkwright Road, Suite 200, Macon, GA 31210 – (478) 825-2021 Blue Bird Body Company R22CB Page 2 Labor Reimbursement: (continued) Repair A: Inspection Only: 0.2 Hours (12 minutes) Repair B: Re-routing Shift Cable: 0.3 Hours (18 minutes) Repair C: Install Brackets: 0.3 Hours (18 minutes) Repair D: Fuel Line Replacement: 0.7 Hours (42 minutes) Administering the Recall and Parts: Parts to complete Recall R22CB are currently available. You may request parts through [email protected] Federal law requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days. If the modifications directed by this notification were performed on your bus prior to the receipt of this recall notification, attach a copy of the work order/invoice. Mail the documents in the pink self-addressed postage prepaid envelope included with the pink reply sheet to Blue Bird for warranty consideration. Reimbursements will be made in accordance with the requirements of the National Highway Transportation Safety Act, Title 49 Code of Federal Regulations, Parts 573 and 577. Please contact your local Blue Bird Dealer with any questions regarding this recall campaign. If Blue Bird Body Company should fail to or is unable to remedy this condition without charge to you, you may contact: ADMINISTRATOR NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION 1200 NEW JERSEY AVENUE, SE WASHINGTON, D.C. 20590 Or, you may call The National Highway Traffic Safety Administration toll free at: 1-888-327-4236 TTY 1-800-424-9153 or go to: http:/www.safercar.gov

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BLUE BIRD BODY COMPANY 3920 Arkwright Road, Suite 200, Macon, GA 31210 – (478) 825-2021 R22CB IMPORTANT SAFETY RECALL NOTICE (Interim Notice) NHTSA Recall Number: 22V-739 School Bus NHTSA Recall Number: 22V-740 Non-School Bus DATE: November 30, 2022 TO: U.S. DEALERS SUBJECT: R22CB: 7.3L Gas Supply Line And Shifter Cable Interference This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. This important safety recall notice applies to your buses identified by both Blue Bird Body Number and Vehicle Identification Number (VIN) on the attached yellow cover sheet. Blue Bird Body Company has decided that a defect which relates to motor vehicle safety exists in:  Certain model year 2022 through 2023 Blue Bird Vision School Buses o manufactured from May 3, 2021 through June 16, 2022  Certain model year 2022 through 2023 Blue Bird Vision Non-School Buses o manufactured from June 11, 2021 through February 25, 2022 On the subject buses, it has been determined that certain Blue Bird Vision (BBCV) School and Non-School Buses equipped with 7.3L gasoline powered engines have a potential for the transmission shift cable to have insufficient clearance to the gasoline fuel supply line at the left rear corner of the engine. The transmission shift cable may come in physical contact with the gasoline fuel line at the rear of the engine. This inadvertent contact could abrade the gasoline fuel line and cause potential leaks. Additionally, some units may be missing the heat shield bracket, which is used to secure the shift cable. Potential interference could cause leak(s) of pressurized gasoline within the approximate area of the hot surfaces of the engine and could increase risk of a fire. Corrective Action: To correct this condition, affected vehicles will need to be inspected and repaired, per R22CB Recall Instructions. The shift cable will need to be inspected and/or properly routed. The affected units will need to be inspected for this condition and possibly rerouted if any signs of a wear are observed. Blue Bird will reimburse the labor cost of the repair related to this recall at no cost to the Dealer or to the vehicle owner. You may request parts at [email protected] Parts will be available on or before January 24, 2023. Labor Reimbursement: Blue Bird will reimburse the labor cost of the repairs related to this recall at no cost to the Dealer or the vehicle owner. The standard repair time (SRT) to accomplish these repairs in accordance with the R22CB remedy procedure(s) is outlined below. The remedy would be comprised of Repair A, or Repair A in combination with Repair B, Repair C and/or Repair D based on the inspection findings. Repair A: Inspection Only: 0.2 Hours (12 minutes) Repair B: Re-routing Shift Cable: 0.3 Hours (18 minutes) Repair C: Install Brackets: 0.3 Hours (18 minutes) Repair D: Fuel Line Replacement: 0.7 Hours (42 minutes) BLUE BIRD BODY COMPANY 3920 Arkwright Road, Suite 200, Macon, GA 31210 – (478) 825-2021 Blue Bird Body Company R22CB Page 2 Administering the Recall and Parts: Parts to complete Recall R22CB will be available on or before January 24, 2023. You may request parts through [email protected] If Blue Bird’s records indicate bus(es) subject to this recall were delivered in your service area, a list of affected bus(es) will be enclosed. The bus(es) will be identified by Blue Bird Body Number and Vehicle Identification Number (VIN) on the enclosed yellow cover sheet. Dealers should verify correct owners and assure that complete mailing and shipping addresses are provided for each listed owner. It is the dealer’s responsibility to verify that the correct owner name, address, and telephone number is provided for each listed vehicle. Any corrections or updates should be made in ClaimsCenter. Addresses that cannot be updated should be forwarded to the Recall Administrator. Federal law requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days. Dealers are reminded of their responsibilities under Section 154 of The National Traffic and Motor Vehicle Safety Act of 1991. Dealers are required to complete modifications on units in their inventory before delivering to the final owner. Reference Blue Bird Body Company Distributor Memo No. 42-92. If you have in your possession or have sold a bus that was purchased from another dealer, that may be affected by this recall, please notify Lisa Hancock at 478-822-2242 or [email protected] Questions regarding this recall campaign should be directed to Lisa Hancock, as well. Sincerely, Lisa Hancock Corporate Recall Administrator Blue Bird Corporation 402 Blue Bird Blvd, Fort Valley, Georgia 31030 Phone 478.822.2242 [email protected]

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-740 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Blue Bird Body Company Submission Date : OCT 05, 2022 NHTSA Recall No. : 22V-740 Manufacturer Recall No. : R22CB (NSB) Manufacturer Information : Manufacturer Name : Blue Bird Body Company Address : P.O. Box 937 402 Blue Bird Boulevard Fort Valley GA 31030 Company phone : 478-822-2242 Population : Number of potentially involved : 25 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2022-2023 Blue Bird Vision Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : GAS Descriptive Information : It has been determined that certain Blue Bird BBCV Non-School Buses equipped with 7.3L gasoline powered Blue Bird Vision buses have a potential for the transmission shift cable to have insufficient clearance to the gasoline fuel supply line at the left rear corner of the engine. Potential interference could cause leak(s) of pressurized gasoline within approx. area of the hot surfaces of the engine and increased risk of fire. Production Dates : JUN 11, 2021 – FEB 25, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : It has been determined that certain Blue Bird BBCV Non-School Buses equipped with 7.3L gasoline powered Blue Bird Vision buses have a potential for the transmission shift cable to have insufficient clearance to the gasoline fuel supply line at the left rear corner of the engine. Potential interference could cause leak(s) of pressurized gasoline within approx. area of the hot surfaces of the engine and increased risk of fire. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : Some 7.3L gasoline powered Blue Bird Vision buses have a potential for the transmission shift cable to have insufficient clearance to the gasoline fuel supply line at the left rear corner of the engine. Potential interference could cause leak(s) of pressurized gasoline within approx. area of the hot surfaces of the engine and increased risk of fire. Part 573 Safety Recall Report 22V-740 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Description of the Cause : It has been determined that certain Blue Bird BBCV Non-School Buses equipped with 7.3L gasoline powered Blue Bird Vision buses have a potential for the transmission shift cable to have insufficient clearance to the gasoline fuel supply line at the left rear corner of the engine. Potential interference could cause leak(s) of pressurized gasoline within approx. area of the hot surfaces of the engine and increased risk of fire. Identification of Any Warning that can Occur : There is no advanced warning of the condition without inspection of the fuel line routing in relation to the transmission shift cable in the area described. Involved Components : Component Name 1 : TUBE ASSY,FUEL,/VPR, ENGINE BNDL, GAS, M10 Component Description : Gas fuel line Component Part Number : 10062098 Component Name 2 : CABLE,TRANSMISSION,SHIFTER,60 Component Description : Transmission shifter cable Component Part Number : 00105993 Supplier Identification : Component Manufacturer Name : NR Address : NR NR Country : NR Chronology : June 20, 2022: Blue Bird Field Service noted improper shift cable to gasoline fuel line clearance on June 20, 2022, after being alerted by New York Bus Sales on unit F524910. Luke Myers within BB field service inspected 9 units in the chassis field and noted 85% of audited units had the transmission shift cable rubbing on the gasoline fuel line at the left rear corner of the engine. The Quality Department was notified and immediate stop gap corrective actions were implemented. Field Service and Quality Assurance team members engaged and collaborated on stop gap measures to re-route the shift cable closer to the toe-box to increase clearance to the fuel line. Part 573 Safety Recall Report 22V-740 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 September 30, 2022: The CIRG team presented this issue to Blue Bird’s Product Safety Committee on September 30, 2022, where it was approved to conduct a voluntary safety recall to correct this potential issue. Description of Remedy : Description of Remedy Program : The Quality Department implemented immediate containment by rerouting the transmission shift cable on June 20th, 2022. All units on property were inspected and reworked, if necessary. All affected units in the field will need to be inspected and potentially reworked to provide the needed clearance. Blue Bird will reimburse the labor cost of the repair related to this recall at no cost to the Dealer or to the vehicle owner. If the modifications directed by this notification were performed on your bus prior to the receipt of this recall notification, provide a copy of the work order/invoice to [email protected] for Blue Bird warranty consideration. How Remedy Component Differs from Recalled Component : The remedy component and recall component are the same. It is the routing of the components that the remedy affects. Identify How/When Recall Condition was Corrected in Production : June 20, 2022: Blue Bird Field Service noted improper shift cable to gasoline fuel line clearance on June 20, 2022, after being alerted by New York Bus Sales on unit F524910. Luke Myers within BB field service inspected 9 units in the chassis field and noted 85% of audited units had the transmission shift cable rubbing on the gasoline fuel line at the left rear corner of the engine. The Quality Department was notified and immediate stop gap corrective actions were implemented. Field Service and Quality Assurance team members engaged and collaborated on stop gap measures to re-route the shift cable closer to the toe-box to increase clearance to the fuel line. Recall Schedule : Description of Recall Schedule : Dealer and Owner Notifications are to be issued on or before November 30, 2022. Blue Bird will reimburse the labor cost of the repair related to this recall at no cost to the Dealer or to the vehicle owner. If the modifications directed by this notification were performed on your bus prior to the receipt of this recall notification, provide a copy of the work order/ invoice to [email protected] for Blue Bird warranty consideration. Parts are required and are available at this time. Planned Dealer Notification Date : NOV 30, 2022 – NOV 30, 2022 Planned Owner Notification Date : NOV 30, 2022 – NOV 30, 2022 * NR – Not Reported

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