Recall CR5220/5221/5222 Door May Open and Close Unexpectedly – 2021 Nova LFS Buses

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NQF705003 VERSION 3 LEVEL DESCRIPTION DIRECT CHARGES TIME LABOUR MATERIAL 1 Verify 3 Upgrade Prerequisites & Perform Abbreviated MRDI Check Nova Bus – 0.75 h 2 – – – – SUBJECT: Rear Plug-Type Door Opening with No Driver Request When Bus Comes to a Stop. JUSTIFICATION: Implementation of a hardwired, active high, door open control signal between the VBEA multiplex system and the vDEC rear door controller to replace the original J1939 network door open control signal. REVISION HISTORY REV. DATE CHANGE DESCRIPTION WRITTEN BY NR 2021NO30 Initial release Devanand DISPOSAL OF PARTS REMOVED PARTS ARE: DISCARDED * RETAINED * Dispose of the unused parts and the defective parts in – – accordance with local environmental standards in effect. APPROVED BY: APPLICATION DEADLINE: N/A CLAIM REFERENCE NUMBER: SR-5222 REFERENCE: Nova Bus Manuals SECTION: 02: Doors and Mechanism RS NO: MQR 7621-2396 EFFECTIVE IN PROD.: 2021NO TC RECALL NO: N/A NHTSA RECALL NO: 21V929 MATERIAL QTY PART NO REV. DESCRIPTION REPLACES PART N° LEVEL 1 – – – – – LEVEL 2 – – – – – CR5222E PAGE 1 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 CLIENT ORDER ROAD NUMBER VIN (2NVY/4RKY…) QTY FROM TO FROM TO New York City Transit New York – NYCT LC79 9624 9628 L82L3M9777783 L82L0M9777787 5 New York City Transit New York – NYCT LC79 9636 9637 L82LXM9777795 L82L1M9777796 2 New York City Transit New York – NYCT LC79 9639 9639 L82L5M9777798 L82L5M9777798 1 New York City Transit New York – NYCT LC79 9644 9644 L82L5M9777803 L82L5M9777803 1 New York City Transit New York – NYCT LC79 9648 9648 L82L2M9777807 L82L2M9777807 1 New York City Transit New York – NYCT LC79 9650 9650 L82L6M9777809 L82L6M9777809 1 New York City Transit New York – NYCT LC79 9652 9654 L82L4M9777811 L82L8M9777813 3 New York City Transit New York – NYCT LC79 9656 9674 L82L1M9777815 L82L3M9777833 19 New York City Transit New York – NYCT LC79 9676 9676 L82L7M9777835 L82L7M9777835 1 New York City Transit New York – NYCT LC79 9678 9678 L82L0M9777837 L82L0M9777837 1 New York City Transit New York – NYCT LC79 9680 9680 L82L4M9777839 L82L4M9777839 1 New York City Transit New York – NYCT LC79 9682 9683 L82L2M9777841 L82L4M9777842 2 New York City Transit New York – NYCT LC79 9691 9691 L82L3M9777850 L82L3M9777850 1 New York City Transit New York – NYCT LC79 9694 9694 L82L9M9777853 L82L9M9777853 1 New York City Transit New York – NYCT LC79 9698 9702 L82L6M9777857 L82L8M9777861 5 New York City Transit New York – NYCT LC79 9707 9707 L82L7M9777866 L82L7M9777866 1 New York City Transit New York – NYCT LC79 9710 9715 L82L2M9777869 L82L8M9777875 6 New York City Transit New York – NYCT LC79 9717 9721 L82L1M9777877 L82L3M9777881 5 New York City Transit New York – NYCT LC79 9723 9724 L82L7M9777883 L82L9M9777884 2 New York City Transit New York – NYCT LC79 9727 9728 L82L4M9777887 L82L6M9777888 2 New York City Transit New York – NYCT LC79 9730 9736 L82L4M9777890 L82L9M9777903 7 New York City Transit New York – NYCT LC79 9738 9740 L82L2M9777905 L82L6M9777907 3 New York City Transit New York – NYCT LC79 9742 9742 L82LXM9777909 L82LXM9777909 1 New York City Transit New York – NYCT LC79 9745 9746 L82LXM9777912 L82L1M9777913 2 New York City Transit New York – NYCT LC79 9748 9780 L82L5M9777915 L82L7M9777950 33 New York City Transit New York – NYCT LC79 9782 9784 L82L0M9777952 L82L4M9777954 3 New York City Transit New York – NYCT LD64 9787 9787 L82L8M9777956 L82L8M9777956 1 New York City Transit New York – NYCT LD64 9796 9796 L82L4M9777971 L82L4M9777971 1 New York City Transit New York – NYCT LD64 9800 9800 L82L1M9777975 L82L1M9777975 1 New York City Transit New York – NYCT LD64 9802 9803 L82L5M9777977 L82L7M9777978 2 New York City Transit New York – NYCT LD64 9805 9806 L82L5M9777980 L82L7M9777981 2 New York City Transit New York – NYCT LD64 9810 9810 L82LXM9777991 L82LXM9777991 1 New York City Transit New York – NYCT LD64 9812 9812 L82L3M9777993 L82L3M9777993 1 New York City Transit New York – NYCT LD64 9829 9832 L82L4M9778022 L82LXM9778025 4 New York City Transit New York – NYCT LD64 9841 9841 L82L6M9778040 L82L6M9778040 1 New York City Transit New York – NYCT LD64 9844 9844 L82L1M9778043 L82L1M9778043 1 CR5222E PAGE 2 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 WARNING FOLLOW YOUR INTERNAL SAFETY PROCEDURES. PROCEDURE 1.1. Park the vehicle on an even surface with transmission on neutral (N). 1.2. Apply the parking brake. 1.3. Set the master control switch to the STOP position (see figure 1). Figure 1 – Master Control Switch in STOP Position Master control switch in STOP position 1.4. Set the battery disconnect switch in the battery compartment to the OFF position (see figure 2). Figure 2 – View of Battery Disconnect Switch Battery disconnect switch in OFF position Main power light turned OFF CR5222E PAGE 3 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 1.5. Locate and access the RF4 panel (panel 79) to check if the N632001060 wire kit is present and properly installed. RF4 Panel (Panel 79) Figure 3 – Location of RF4 Panel (Panel 79) VBI vDEC Module Volvo IOA 50 Module Figure 4 – View of Volvo IOA 50 Module and VBI vDEC Module Inside the RF4 Panel CR5222E PAGE 4 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 Figure 5 – Connection from vDEC “Vehicle” Position 14 (RF4-X79AC3/14) to IOA 50 “J1” Position 13 (RF4-X79H1/13) Check if the N632001060 Wire Kit (Added Wire 79-167) is Properly Installed (Routed, Secured & Connected at Both Ends). NOTE 2.1. While in the RF4 panel, locate the vDEC module USB port (on module lower right corner, next to status LEDs) and connect it with a USB 2.0 A-B cable to a laptop PC running the VBI vDEC V3.12.2 diagnostic software. 2.2. Refer to VBI Technical Bulletin “TB08-03-376 – Vapor Dual Electric Controller (vDEC) Diagnostic Program Guide for Version 3” for details on how to install the vDEC diagnostic software and to setup the USB Virtual COM Port (VCP) serial communication interface driver on the laptop PC. 2.3. If the USB-to-serial communication interface setup is completed and the connection is successful, the “Product ID” dialog box should appear on the laptop screen upon launching the vDEC diagnostic software and the vDEC firmware version ID should be displayed within the “Product” field of this dialog box. 2.4. Check if the version ID v3.05.7 (or greater) and the appropriate formalized parameters file name are being displayed in the “Product” and “Parameters” fields to confirm that the vDEC firmware was properly updated. CR5222E PAGE 5 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 Figure 6 – Checking the vDEC Firmware Version CR5222E PAGE 6 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 3.1. Access the Volvo multiplex system “Master ID” DB9 connector located inside the driver overhead left console and connect it with a serial-to-USB cable to a laptop PC running the Volvo application software. 3.2. Refer to section 16-601.41 of the Nova Maintenance Manual for details on how to use the Volvo application software and to setup the USB Virtual COM Port (VCP) serial communication interface driver on the laptop PC. 3.3. If the USB-to-serial communication interface setup is completed and the connection is successful, the VBEA software Full Body (FB) package version and revision should be displayed in Volvo’s application main screen. 3.4. Check if the appropriate FB software package version and revision information is displayed as follows by the Volvo application software to confirm that the VBEA multiplex system software was properly updated. FB_NYC4HE_M_02 rev. J for LC79 buses FB_NYC4HE_M_03 rev. C for LD64 buses Figure 7 – Checking the VBEA Software Version and Revision STANDARD RS232 CABLE CR5222E PAGE 7 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 4.1. Once the 3 previous sections are successfully completed, proceed to perform this final certification / validation test procedure by executing the applicable checklist test plan instructions specified below. 4.2. Test results are to be recorded in an Excel file specific to each tested bus to track and testify that all needed verifications and validation tests were successfully passed before returning the bus into revenue service. Execute the Applicable Certification Checklist Test Plan and Record the Test Results – Complete Checklist (Test Plan Scenario Applicable to First-Of LC79 & LD64 Campaign Buses) QJ 7621-2396 – FT5212 Complete Checklist (Test Plan Scenario for First-Of Campaign Buses) RevB.xlsx QJ 7621-2396 – FT5212 Abbreviated Checklist (Test Plan Scenario for Other Campaign Buses) RevC.xlsx MRDI 88-382 Nova Electric Doors 20211109 – Annotated Copy for FT5212 Abbreviated Checklist RevC.pdf – Abbreviated Checklist (Test Plan Scenario Applicable to Following LC79 & LD64 Campaign Buses) – MRDI (TSB 88-382, dated 11/9/2021) Annotated Copy applicable to FT5212 Abbreviated Checklist 4.3. Set the battery disconnect switch in the battery compartment to the ON position. 4.4. The bus can be returned into service. CR5222E PAGE 8 OF 8 RECALL CAMPAIGN

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NQF705003 VERSION 3 LEVEL DESCRIPTION DIRECT CHARGES TIME LABOUR MATERIAL 1 Installation of the N632001060 wire kit. Nova Bus Nova Bus 0.33 h 2 – – – – SUBJECT: Rear Plug-Type Door Opening with No Driver Request When Bus Comes to a Stop. JUSTIFICATION: Implementation of a hardwired, active high, door open control signal between the VBEA multiplex system and the vDEC rear door controller to replace the original J1939 network door open control signal. REVISION HISTORY REV. DATE CHANGE DESCRIPTION WRITTEN BY NR 2021NO30 Initial release Devanand DISPOSAL OF PARTS REMOVED PARTS ARE: DISCARDED * RETAINED * Dispose of the unused parts and the defective parts in Yes – accordance with local environmental standards in effect. APPROVED BY: APPLICATION DEADLINE: N/A CLAIM REFERENCE NUMBER: SR-5220 REFERENCE: Nova Bus Manuals SECTION: 02: Doors and Mechanism RS NO: MQR 7621-2396 EFFECTIVE IN PROD.: 2021NO TC RECALL NO: N/A NHTSA RECALL NO: 21V929 MATERIAL QTY PART NO REV. DESCRIPTION REPLACES PART N° LEVEL 1 1 N632001060 – Kit Wire Rear Plug Door NYCT – 5 G5007994 – Tie Wrap Nylon Black – LEVEL 2 – – – – – Materials will be available within 42 days once your order has been placed. To order, please contact novabus.parts@volvo.com Or by phone for CANADA 1-800-771-6682, for USA 1-877-999-8808 Specify document number, quantity of parts required and shipping address. CR5220E PAGE 1 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 CLIENT ORDER ROAD NUMBER VIN (2NVY/4RKY…) QTY FROM TO FROM TO New York City Transit New York – NYCT LC79 9624 9628 L82L3M9777783 L82L0M9777787 5 New York City Transit New York – NYCT LC79 9636 9637 L82LXM9777795 L82L1M9777796 2 New York City Transit New York – NYCT LC79 9639 9639 L82L5M9777798 L82L5M9777798 1 New York City Transit New York – NYCT LC79 9644 9644 L82L5M9777803 L82L5M9777803 1 New York City Transit New York – NYCT LC79 9648 9648 L82L2M9777807 L82L2M9777807 1 New York City Transit New York – NYCT LC79 9650 9650 L82L6M9777809 L82L6M9777809 1 New York City Transit New York – NYCT LC79 9652 9654 L82L4M9777811 L82L8M9777813 3 New York City Transit New York – NYCT LC79 9656 9674 L82L1M9777815 L82L3M9777833 19 New York City Transit New York – NYCT LC79 9676 9676 L82L7M9777835 L82L7M9777835 1 New York City Transit New York – NYCT LC79 9678 9678 L82L0M9777837 L82L0M9777837 1 New York City Transit New York – NYCT LC79 9680 9680 L82L4M9777839 L82L4M9777839 1 New York City Transit New York – NYCT LC79 9682 9683 L82L2M9777841 L82L4M9777842 2 New York City Transit New York – NYCT LC79 9691 9691 L82L3M9777850 L82L3M9777850 1 New York City Transit New York – NYCT LC79 9694 9694 L82L9M9777853 L82L9M9777853 1 New York City Transit New York – NYCT LC79 9698 9702 L82L6M9777857 L82L8M9777861 5 New York City Transit New York – NYCT LC79 9707 9707 L82L7M9777866 L82L7M9777866 1 New York City Transit New York – NYCT LC79 9710 9715 L82L2M9777869 L82L8M9777875 6 New York City Transit New York – NYCT LC79 9717 9721 L82L1M9777877 L82L3M9777881 5 New York City Transit New York – NYCT LC79 9723 9724 L82L7M9777883 L82L9M9777884 2 New York City Transit New York – NYCT LC79 9727 9728 L82L4M9777887 L82L6M9777888 2 New York City Transit New York – NYCT LC79 9730 9736 L82L4M9777890 L82L9M9777903 7 New York City Transit New York – NYCT LC79 9738 9740 L82L2M9777905 L82L6M9777907 3 New York City Transit New York – NYCT LC79 9742 9742 L82LXM9777909 L82LXM9777909 1 New York City Transit New York – NYCT LC79 9745 9746 L82LXM9777912 L82L1M9777913 2 New York City Transit New York – NYCT LC79 9748 9780 L82L5M9777915 L82L7M9777950 33 New York City Transit New York – NYCT LC79 9782 9784 L82L0M9777952 L82L4M9777954 3 New York City Transit New York – NYCT LD64 9787 9787 L82L8M9777956 L82L8M9777956 1 New York City Transit New York – NYCT LD64 9796 9796 L82L4M9777971 L82L4M9777971 1 New York City Transit New York – NYCT LD64 9800 9800 L82L1M9777975 L82L1M9777975 1 New York City Transit New York – NYCT LD64 9802 9803 L82L5M9777977 L82L7M9777978 2 New York City Transit New York – NYCT LD64 9805 9806 L82L5M9777980 L82L7M9777981 2 New York City Transit New York – NYCT LD64 9810 9810 L82LXM9777991 L82LXM9777991 1 New York City Transit New York – NYCT LD64 9812 9812 L82L3M9777993 L82L3M9777993 1 New York City Transit New York – NYCT LD64 9829 9832 L82L4M9778022 L82LXM9778025 4 New York City Transit New York – NYCT LD64 9841 9841 L82L6M9778040 L82L6M9778040 1 New York City Transit New York – NYCT LD64 9844 9844 L82L1M9778043 L82L1M9778043 1 CR5220E PAGE 2 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 WARNING FOLLOW YOUR INTERNAL SAFETY PROCEDURES. PROCEDURE 1.1. Park the vehicle on an even surface with transmission on neutral (N). 1.2. Apply the parking brake. 1.3. Set the master control switch to the STOP position (see figure 1). Figure 1 – Master Control Switch in STOP Position Master control switch in STOP position 1.4. Set the battery disconnect switch in the battery compartment to the OFF position (see figure 2). Figure 2 – View of Battery Disconnect Switch Battery disconnect switch in OFF position Main power light turned OFF CR5220E PAGE 3 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 1.5. Locate and access the RF4 panel (panel 79) to proceed with the installation of the N632001060 wire kit. 1.6. Open the RF4 panel to access the Volvo IOA 50 module (lower left hand side corner) and the VBI vDEC module (upper right hand side corner). RF4 Panel (Panel 79) VBI vDEC Module Volvo IOA 50 Module Figure 3 – Location of RF4 Panel (Panel 79) Figure 4 – View of Volvo IOA 50 Module and VBI vDEC Module inside the RF4 Panel CR5220E PAGE 4 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 1.7. Get N632001060 wire kit and prepare to insert wire 79-167 terminals into connector housings in accordance with the following From To List (see FTL highlighted indications) while running this wire along the routing path shown in the picture below. N632001060 Wire Kit FTL Table Showing Wire 79-167 Origin (1st Record) Destination (2nd Record) Wire ID Wire Specs Breakout ID Termination Specs Prefix Middle AWG Color Nova P/N Cut Lt Loc Device Terminal Seal Pos 79- 167 18 WH N25832-15 1000 mm RF4 X79AC3 N92756 NO SEAL 14 79- 167 18 WH N25832-15 1000 mm RF4 X79H1 N37235-02 NO SEAL 13 Figure 5 – Installation of the N632001060 Wire Kit CR5220E PAGE 5 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 1.8. Start the connection by inserting the 79-167 wire terminal N92756 (TE Connectivity p/n 927771-3) into position 14 of the vDEC module “Vehicle” connector housing (WHA 79, breakout RF4-X79AC3/14). Figure 6 – Insertion of Wire Terminal N92756 into vDEC Module “Vehicle” Connector Position 14 (RF4-X79AC3/14) Vapor vDEC Module Side (WHA 79, breakout RF4-X79AC3/14) TE Junior Power Timer Terminal (Female, Receptacle) – Nova p/n N92756 – TE Connectivity p/n 927771-3 TE Junior Power Timer Connector (Grey, 21-Position Housing) – Nova p/n N92754 – TE Connectivity p/n 1-967625-2 CR5220E PAGE 6 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 1.9. Complete the connection of wire 79-167 terminal N37235-02 (TE Connectivity p/n 1-968849-1) into position 13 of the IOA 50 module “J1” connector housing (WHA 79, breakout RF4-X79H1/13). Figure 7 – Insertion of Wire Terminal N37235-02 into IOA 50 Module “J1” Connector Position 13 (RF4-X79H1/13) Volvo IOA 50 Module Side (WHA 79, breakout RF4-X79H1/13) TE MCP2.8 Terminal (Female, Receptacle) – Nova p/n N37235-02 – TE Connectivity p/n 1-968849-1 TE MCP2.8 Connector (Brown, 21-Position Housing) – Nova p/n N40119-21 – TE Connectivity p/n 8-968975-1 CR5220E PAGE 7 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 1.10. Once the terminals have been properly inserted and locked into the connector housings of both modules, proceed to secure wire 79-167 with the provided G5007994 tie wraps, in accordance with Nova’s STD 0268 standard requirements. 1.11. Set the battery disconnect switch in the battery compartment to the ON position. 1.12. Proceed with CR5221E to update the VBEA multiplex system software. 1.13. Finally proceed with CR5222E to check if the vDEC firmware has been properly updated and to perform the abbreviated MRDI check list needed to validate rear door operation before returning the bus into service. Figure 8 – Mount Tie Wraps to Secure Wire 79-167 CR5220E PAGE 8 OF 8 RECALL CAMPAIGN

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NQF705003 VERSION 3 LEVEL DESCRIPTION DIRECT CHARGES TIME LABOUR MATERIAL 1 Installation of the N632001060 wire kit. Nova Bus Nova Bus 0.33 h 2 – – – – SUBJECT: Rear Plug-Type Door Opening with No Driver Request When Bus Comes to a Stop. JUSTIFICATION: Implementation of a hardwired, active high, door open control signal between the VBEA multiplex system and the vDEC rear door controller to replace the original J1939 network door open control signal. REVISION HISTORY REV. DATE CHANGE DESCRIPTION WRITTEN BY NR 2021NO30 Initial release Devanand DISPOSAL OF PARTS REMOVED PARTS ARE: DISCARDED * RETAINED * Dispose of the unused parts and the defective parts in Yes – accordance with local environmental standards in effect. APPROVED BY: APPLICATION DEADLINE: N/A CLAIM REFERENCE NUMBER: SR-5220 REFERENCE: Nova Bus Manuals SECTION: 02: Doors and Mechanism RS NO: MQR 7621-2396 EFFECTIVE IN PROD.: 2021NO TC RECALL NO: N/A NHTSA RECALL NO: 21V929 MATERIAL QTY PART NO REV. DESCRIPTION REPLACES PART N° LEVEL 1 1 N632001060 – Kit Wire Rear Plug Door NYCT – 5 G5007994 – Tie Wrap Nylon Black – LEVEL 2 – – – – – Materials will be available within 42 days once your order has been placed. To order, please contact novabus.parts@volvo.com Or by phone for CANADA 1-800-771-6682, for USA 1-877-999-8808 Specify document number, quantity of parts required and shipping address. CR5220E PAGE 1 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 CLIENT ORDER ROAD NUMBER VIN (2NVY/4RKY…) QTY FROM TO FROM TO New York City Transit New York – NYCT LC79 9624 9628 L82L3M9777783 L82L0M9777787 5 New York City Transit New York – NYCT LC79 9636 9637 L82LXM9777795 L82L1M9777796 2 New York City Transit New York – NYCT LC79 9639 9639 L82L5M9777798 L82L5M9777798 1 New York City Transit New York – NYCT LC79 9644 9644 L82L5M9777803 L82L5M9777803 1 New York City Transit New York – NYCT LC79 9648 9648 L82L2M9777807 L82L2M9777807 1 New York City Transit New York – NYCT LC79 9650 9650 L82L6M9777809 L82L6M9777809 1 New York City Transit New York – NYCT LC79 9652 9654 L82L4M9777811 L82L8M9777813 3 New York City Transit New York – NYCT LC79 9656 9674 L82L1M9777815 L82L3M9777833 19 New York City Transit New York – NYCT LC79 9676 9676 L82L7M9777835 L82L7M9777835 1 New York City Transit New York – NYCT LC79 9678 9678 L82L0M9777837 L82L0M9777837 1 New York City Transit New York – NYCT LC79 9680 9680 L82L4M9777839 L82L4M9777839 1 New York City Transit New York – NYCT LC79 9682 9683 L82L2M9777841 L82L4M9777842 2 New York City Transit New York – NYCT LC79 9691 9691 L82L3M9777850 L82L3M9777850 1 New York City Transit New York – NYCT LC79 9694 9694 L82L9M9777853 L82L9M9777853 1 New York City Transit New York – NYCT LC79 9698 9702 L82L6M9777857 L82L8M9777861 5 New York City Transit New York – NYCT LC79 9707 9707 L82L7M9777866 L82L7M9777866 1 New York City Transit New York – NYCT LC79 9710 9715 L82L2M9777869 L82L8M9777875 6 New York City Transit New York – NYCT LC79 9717 9721 L82L1M9777877 L82L3M9777881 5 New York City Transit New York – NYCT LC79 9723 9724 L82L7M9777883 L82L9M9777884 2 New York City Transit New York – NYCT LC79 9727 9728 L82L4M9777887 L82L6M9777888 2 New York City Transit New York – NYCT LC79 9730 9736 L82L4M9777890 L82L9M9777903 7 New York City Transit New York – NYCT LC79 9738 9740 L82L2M9777905 L82L6M9777907 3 New York City Transit New York – NYCT LC79 9742 9742 L82LXM9777909 L82LXM9777909 1 New York City Transit New York – NYCT LC79 9745 9746 L82LXM9777912 L82L1M9777913 2 New York City Transit New York – NYCT LC79 9748 9780 L82L5M9777915 L82L7M9777950 33 New York City Transit New York – NYCT LC79 9782 9784 L82L0M9777952 L82L4M9777954 3 New York City Transit New York – NYCT LD64 9787 9787 L82L8M9777956 L82L8M9777956 1 New York City Transit New York – NYCT LD64 9796 9796 L82L4M9777971 L82L4M9777971 1 New York City Transit New York – NYCT LD64 9800 9800 L82L1M9777975 L82L1M9777975 1 New York City Transit New York – NYCT LD64 9802 9803 L82L5M9777977 L82L7M9777978 2 New York City Transit New York – NYCT LD64 9805 9806 L82L5M9777980 L82L7M9777981 2 New York City Transit New York – NYCT LD64 9810 9810 L82LXM9777991 L82LXM9777991 1 New York City Transit New York – NYCT LD64 9812 9812 L82L3M9777993 L82L3M9777993 1 New York City Transit New York – NYCT LD64 9829 9832 L82L4M9778022 L82LXM9778025 4 New York City Transit New York – NYCT LD64 9841 9841 L82L6M9778040 L82L6M9778040 1 New York City Transit New York – NYCT LD64 9844 9844 L82L1M9778043 L82L1M9778043 1 CR5220E PAGE 2 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 WARNING FOLLOW YOUR INTERNAL SAFETY PROCEDURES. PROCEDURE 1.1. Park the vehicle on an even surface with transmission on neutral (N). 1.2. Apply the parking brake. 1.3. Set the master control switch to the STOP position (see figure 1). Figure 1 – Master Control Switch in STOP Position Master control switch in STOP position 1.4. Set the battery disconnect switch in the battery compartment to the OFF position (see figure 2). Figure 2 – View of Battery Disconnect Switch Battery disconnect switch in OFF position Main power light turned OFF CR5220E PAGE 3 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 1.5. Locate and access the RF4 panel (panel 79) to proceed with the installation of the N632001060 wire kit. 1.6. Open the RF4 panel to access the Volvo IOA 50 module (lower left hand side corner) and the VBI vDEC module (upper right hand side corner). RF4 Panel (Panel 79) VBI vDEC Module Volvo IOA 50 Module Figure 3 – Location of RF4 Panel (Panel 79) Figure 4 – View of Volvo IOA 50 Module and VBI vDEC Module inside the RF4 Panel CR5220E PAGE 4 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 1.7. Get N632001060 wire kit and prepare to insert wire 79-167 terminals into connector housings in accordance with the following From To List (see FTL highlighted indications) while running this wire along the routing path shown in the picture below. N632001060 Wire Kit FTL Table Showing Wire 79-167 Origin (1st Record) Destination (2nd Record) Wire ID Wire Specs Breakout ID Termination Specs Prefix Middle AWG Color Nova P/N Cut Lt Loc Device Terminal Seal Pos 79- 167 18 WH N25832-15 1000 mm RF4 X79AC3 N92756 NO SEAL 14 79- 167 18 WH N25832-15 1000 mm RF4 X79H1 N37235-02 NO SEAL 13 Figure 5 – Installation of the N632001060 Wire Kit CR5220E PAGE 5 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 1.8. Start the connection by inserting the 79-167 wire terminal N92756 (TE Connectivity p/n 927771-3) into position 14 of the vDEC module “Vehicle” connector housing (WHA 79, breakout RF4-X79AC3/14). Figure 6 – Insertion of Wire Terminal N92756 into vDEC Module “Vehicle” Connector Position 14 (RF4-X79AC3/14) Vapor vDEC Module Side (WHA 79, breakout RF4-X79AC3/14) TE Junior Power Timer Terminal (Female, Receptacle) – Nova p/n N92756 – TE Connectivity p/n 927771-3 TE Junior Power Timer Connector (Grey, 21-Position Housing) – Nova p/n N92754 – TE Connectivity p/n 1-967625-2 CR5220E PAGE 6 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 1.9. Complete the connection of wire 79-167 terminal N37235-02 (TE Connectivity p/n 1-968849-1) into position 13 of the IOA 50 module “J1” connector housing (WHA 79, breakout RF4-X79H1/13). Figure 7 – Insertion of Wire Terminal N37235-02 into IOA 50 Module “J1” Connector Position 13 (RF4-X79H1/13) Volvo IOA 50 Module Side (WHA 79, breakout RF4-X79H1/13) TE MCP2.8 Terminal (Female, Receptacle) – Nova p/n N37235-02 – TE Connectivity p/n 1-968849-1 TE MCP2.8 Connector (Brown, 21-Position Housing) – Nova p/n N40119-21 – TE Connectivity p/n 8-968975-1 CR5220E PAGE 7 OF 8 RECALL CAMPAIGN NQF705003 VERSION 3 1.10. Once the terminals have been properly inserted and locked into the connector housings of both modules, proceed to secure wire 79-167 with the provided G5007994 tie wraps, in accordance with Nova’s STD 0268 standard requirements. 1.11. Set the battery disconnect switch in the battery compartment to the ON position. 1.12. Proceed with CR5221E to update the VBEA multiplex system software. 1.13. Finally proceed with CR5222E to check if the vDEC firmware has been properly updated and to perform the abbreviated MRDI check list needed to validate rear door operation before returning the bus into service. Figure 8 – Mount Tie Wraps to Secure Wire 79-167 CR5220E PAGE 8 OF 8 RECALL CAMPAIGN

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NQF705003 VERSION 3 LEVEL DESCRIPTION DIRECT CHARGES TIME LABOUR MATERIAL 1 Update the VBEA program Nova Bus – 0.33 h 2 – – – – SUBJECT: VBEA Software Reprogramming. JUSTIFICATION: Implementation of a hardwired, active high, door open control signal between the VBEA multiplex system and the vDEC rear door controller to replace the original J1939 network door open control signal. REVISION HISTORY REV. DATE CHANGE DESCRIPTION WRITTEN BY NR 2021NO30 Initial release Devanand DISPOSAL OF PARTS REMOVED PARTS ARE: DISCARDED * RETAINED * Dispose of the unused parts and the defective parts in – – accordance with local environmental standards in effect. APPROVED BY: APPLICATION DEADLINE: N/A CLAIM REFERENCE NUMBER: SR-5221 REFERENCE: Nova Bus Manuals SECTION: 02: Doors and Mechanism RS NO: MQR 7621-2396 EFFECTIVE IN PROD.: 2021NO TC RECALL NO: N/A NHTSA RECALL NO: 21V929 MATERIAL QTY PART NO REV. DESCRIPTION REPLACES PART N° LEVEL 1 – – – – – LEVEL 2 – – – – – CR5221E PAGE 1 OF 4 RECALL CAMPAIGN NQF705003 VERSION 3 * Please contact your customer support manager to obtain the version of the software update CLIENT ORDER ROAD NUMBER VIN (2NVY/4RKY…) QTY PROGRAM REV. FROM TO FROM TO New York City Transit New York – NYCT LC79 9624 9628 L82L3M9777783 L82L0M9777787 5 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9636 9637 L82LXM9777795 L82L1M9777796 2 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9639 9639 L82L5M9777798 L82L5M9777798 1 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9644 9644 L82L5M9777803 L82L5M9777803 1 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9648 9648 L82L2M9777807 L82L2M9777807 1 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9650 9650 L82L6M9777809 L82L6M9777809 1 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9652 9654 L82L4M9777811 L82L8M9777813 3 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9656 9674 L82L1M9777815 L82L3M9777833 19 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9676 9676 L82L7M9777835 L82L7M9777835 1 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9678 9678 L82L0M9777837 L82L0M9777837 1 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9680 9680 L82L4M9777839 L82L4M9777839 1 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9682 9683 L82L2M9777841 L82L4M9777842 2 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9691 9691 L82L3M9777850 L82L3M9777850 1 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9694 9694 L82L9M9777853 L82L9M9777853 1 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9698 9702 L82L6M9777857 L82L8M9777861 5 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9707 9707 L82L7M9777866 L82L7M9777866 1 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9710 9715 L82L2M9777869 L82L8M9777875 6 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9717 9721 L82L1M9777877 L82L3M9777881 5 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9723 9724 L82L7M9777883 L82L9M9777884 2 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9727 9728 L82L4M9777887 L82L6M9777888 2 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9730 9736 L82L4M9777890 L82L9M9777903 7 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9738 9740 L82L2M9777905 L82L6M9777907 3 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9742 9742 L82LXM9777909 L82LXM9777909 1 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9745 9746 L82LXM9777912 L82L1M9777913 2 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9748 9780 L82L5M9777915 L82L7M9777950 33 FB_NYC4HE_M_02 J New York City Transit New York – NYCT LC79 9782 9784 L82L0M9777952 L82L4M9777954 3 FB_NYC4HE_M_02 J CR5221E PAGE 2 OF 4 RECALL CAMPAIGN NQF705003 VERSION 3 * Please contact your customer support manager to obtain the version of the software update CLIENT ORDER ROAD NUMBER VIN (2NVY/4RKY…) QTY PROGRAM REV. FROM TO FROM TO New York City Transit New York – NYCT LD64 9787 9787 L82L8M9777956 L82L8M9777956 1 FB_NYC4HE_M_03 C New York City Transit New York – NYCT LD64 9796 9796 L82L4M9777971 L82L4M9777971 1 FB_NYC4HE_M_03 C New York City Transit New York – NYCT LD64 9800 9800 L82L1M9777975 L82L1M9777975 1 FB_NYC4HE_M_03 C New York City Transit New York – NYCT LD64 9802 9803 L82L5M9777977 L82L7M9777978 2 FB_NYC4HE_M_03 C New York City Transit New York – NYCT LD64 9805 9806 L82L5M9777980 L82L7M9777981 2 FB_NYC4HE_M_03 C New York City Transit New York – NYCT LD64 9810 9810 L82LXM9777991 L82LXM9777991 1 FB_NYC4HE_M_03 C New York City Transit New York – NYCT LD64 9812 9812 L82L3M9777993 L82L3M9777993 1 FB_NYC4HE_M_03 C New York City Transit New York – NYCT LD64 9829 9832 L82L4M9778022 L82LXM9778025 4 FB_NYC4HE_M_03 C New York City Transit New York – NYCT LD64 9841 9841 L82L6M9778040 L82L6M9778040 1 FB_NYC4HE_M_03 C New York City Transit New York – NYCT LD64 9844 9844 L82L1M9778043 L82L1M9778043 1 FB_NYC4HE_M_03 C CR5221E PAGE 3 OF 4 RECALL CAMPAIGN NQF705003 VERSION 3 WARNING FOLLOW YOUR INTERNAL SAFETY PROCEDURES. PROCEDURE Program the V-BEA system using the program and revision indicated in the client listing or the one recommended by your customer support manager. See section 16: V-BEA (VOLVO BUS ELECTRONIC ARCHITECTURE) of the Nova LFS maintenance manual for the programming procedure. NOTE CR5221E PAGE 4 OF 4 RECALL CAMPAIGN

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260 Banker Rd, Plattsburgh, NY, USA 12901 | Tel: 1 800 350-6682 | Fax: 450 974-3001 | us.novabus.com Nova Bus (US) Inc. IMPORTANT SAFETY RECALL THIS NOTICE APPLIES TO YOUR VEHICLE – SEE VIN IN ANNEX A M. Joe Customer Bus transit co 260, Banker Road Plattsburgh, NY, 12901 Saint-Eustache, December 15, 2021 This Notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. Nova Bus (US) Inc. has decided that a defect which relates to motor vehicle safety exists in certain Nova Bus LFS 2021 manufactured from December 7th, 2020 to October 6th, 2021 equipped with a Vapor vDEC electronic control module and certain vehicle multiplex software. Nova Bus (US) Inc. have voluntary filed the vehicle recall 21V929 and will issue a recall campaign service document CR5220E to address this situation. Certain affected vehicles may under certain conditions, the rear passenger doors may open and close (full cycle) unexpectedly without a driver request when the bus comes to a stop. Rear passenger doors opening unexpectedly when the bus comes to a stop may increase the risk of injury or death to passengers that may exit the bus while the vehicle is not in a safe location. Nova Bus has not received any report of injury or death associated with this defect. Therefore, we consider this as a proactive measure to protect the public from the potential safety risk associated with this defect. Nova Bus (US) Inc. will release a service document explaining the remedy. This document will be available to you on our web site at http://www.novabus.com/on-line-services.html. The necessary replacement parts are available via the Prevost Parts distribution network. Nova Bus (US) Inc. will assume the parts and labour costs according to the warranty claim policies in effect. The vehicle can be remedied starting from December 3th 2021 (according to Prevost Parts kit availability). The repairs should take approximately 20 minutes to complete. Any lessor who receives a notification of a determination of a safety-related defect or noncompliance pertaining to any leased motor vehicle shall send a copy of such notice to the lessee. This requirement applies to both initial and follow-up notifications. After contacting your customer support manager, if you are still not able to have the safety defect remedied without charge and within reasonable time, you may submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, SE, Washington, DC 20590; or call the toll-free Vehicle Safety Hotline 1-888-327-4236 (TTY: 1-800-424-9153); or go to http://www.safercar.gov. 260 Banker Rd, Plattsburgh, NY, USA 12901 | Tel: 1 800 350-6682 | Fax: 450 974-3001 | us.novabus.com You may be eligible to receive reimbursement for the cost of obtaining a pre-notification remedy of a problem associated with this defect. Submit copies of all documentation supporting your claim according to the rules specified in the “General Plan for Reimbursement of Pre-notification Remedies” provided in this mailing under the heading “Annex B”. If you have any questions regarding the requirements of this campaign, please contact your customer support manager. Sincerely, Daniel Theriault Director, Field Service 260 Banker Rd, Plattsburgh, NY, USA 12901 | Tel: 1 800 350-6682 | Fax: 450 974-3001 | us.novabus.com ANNEX A Make Model Model Year Road #. VIN Nova Bus Nova Bus Nova Bus Nova Bus Nova Bus Nova Bus Nova Bus Nova Bus Nova Bus Nova Bus Nova Bus Nova Bus Nova Bus Nova Bus Nova Bus 260 Banker Rd, Plattsburgh, NY, USA 12901 | Tel: 1 800 350-6682 | Fax: 450 974-3001 | us.novabus.com ANNEX B General Plan for Reimbursement of Pre-Notification Remedies When a Nova Bus vehicle is affected by a safety recall and the owner/purchaser (claimant) has the safety-related defect or FMVSS regulatory noncompliance remedied at their own expense prior to receiving the manufacturer notification of the safety recall, Nova Bus (US) Inc. will reimburse the owner/purchaser for the reasonable amount paid (i.e. the cost of parts, labor, disposal fees and taxes) that addressed the safety-related defect or FMVSS regulatory noncompliance as described in the safety recall notification. To qualify, repairs must have been completed no earlier than one year prior to the release of the safety recall (notification to the government) and no later than 10 days after the last mailing of the initial customer notification letter pertaining to the recall. All claims must be accompanied by accurate and complete documentation (the invoice/receipt must provide the VIN, date of repairs, total amount paid and include a breakdown of the parts, labor, and other costs. Specific costs associated with the recall repair must be highlighted or circled on the invoice). The following information is required for your claim to be processed. Please print legibly. Date: _________________ Recall #: ______________ 17 digits VIN: ________________________________ Owner’s Name: ________________________________ Own / Lease (circle one) Address: ______________________________________ Date of Repair: _______________________________ City, State, Zip: ________________________________ Amount Requested: ___________________________ Phone#: _______________________________________ Email: _______________________________________ I CERTIFY THAT I PAID FOR REPAIRS THAT REMEDIED THE SAFETY-RELATED DEFECT OR FMVSS REGULATORY NONCOMPLIANCE AS DESCRIBED IN THE OWNER NOTIFICATION LETTER PRIOR TO BEING NOTIFIED. I ALSO CERTIFY THAT I HAVE PROVIDED CLEAR DOCUMENTATION OF THESE REPAIRS AND THAT ALL INFORMATION PROVIDED IS COMPLETE AND ACCURATE TO THE BEST OF MY KNOWLEDGE. Claimant __________________________________________________________________ _____________________ Authorized signature and date Contact Information Submit your claim together with copies of all supporting documentation to: Nova Bus Warranty, TMAC 850, chemin Olivier Saint-Nicolas (QC) G7A 2N1 Canada Email: adm.novabus.warranty@volvo.com Allow 60 days for processing and decision. Nova Bus (US) Inc. is not responsible for claims submitted to the wrong address. This process is not intended to handle incident, accident or property damage claims. Claims of that nature must be directed to our legal department at 1000 Industriel Boulevard, Saint-Eustache, QC, Canada J7R 5A5.

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 21V-929 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Nova Bus (US) Inc. Submission Date : NOV 26, 2021 NHTSA Recall No. : 21V-929 Manufacturer Recall No. : CR5220/5221/5222 Manufacturer Information : Manufacturer Name : Nova Bus (US) Inc. Address : 260 Banker Road PLATTSBURGH NY 12901 Company phone : 450-472-6410 Population : Number of potentially involved : 125 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2021-2021 Nova Bus LFS Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : NR Descriptive Information : Certain vehicles equipped with electrically actuated rear passenger exit doors with a Vapor vDEC electronic control module and certain vehicle multiplex software. Production Dates : DEC 14, 2020 – JUL 02, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : Under certain conditions, the rear passenger doors may open and close (full cycle) unexpectedly without a driver request when the bus comes to a stop. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : Rear passenger doors opening unexpectedly when the bus comes to a stop may increase the risk of injury or death to passengers that may exit the bus while the vehicle is not in a safe location. Nova Bus has not received any report of injury or death associated with this defect. Therefore, we consider this as a proactive measure to protect the public from the potential safety risk associated with this defect. Description of the Cause : Under certain conditions, a latched event in the vehicle multiplex software may cause the door system electronic control module to receive an invalid request to open the doors. Identification of Any Warning that can Occur : None. Part 573 Safety Recall Report 21V-929 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Involved Components : Component Name 1 : Software Component Description : Vehicle multiplex software (VBEA) Component Part Number : FB_NYC4HE_M_02 rev G; FB_NYC4HE_M_03 rev A Supplier Identification : Component Manufacturer Name : NR Address : NR NR Country : NR Chronology : 2021-10-15: Nova Bus receives 2 reports of rear doors opening with no request from the same customer. 2021-10-20: Nova Bus issues a proactive delivery stop for the affected vehicle. 2021-11-04: Nova Bus Product Safety Working Group is informed of the of the Potential Safety-Related Issue. 2021-11-04: Nova Bus Product Safety Working Group confirms this is a Potential Safety-Related Issue and opened the evaluation. 2021-11-04: Nova Bus releases some service documents. 2021-11-12: Nova Bus Product Safety Working Group raises the case to the Nova Bus Product Safety Committee. 2021-11-18: Nova Bus Product Safety Committee determines a Safety-Related defect exists. 2021-11-25: Nova Bus submits a vehicle recall report to NHTSA. Description of Remedy : Description of Remedy Program : Nova Bus will provide a service document to perform the remedy. All costs associated with this corrective measure will be covered by Nova Bus. Prenotification remedies will be addressed using the general reimbursement plan on file with NHTSA. How Remedy Component Differs from Recalled Component : The vehicle multiplex software was updated, the rear electric doors electronic control module firmware/software was updated and a hardware dedicated wire kit was added for the rear door authorization request. Part 573 Safety Recall Report 21V-929 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Identify How/When Recall Condition was Corrected in Production : The vehicle multiplex software was updated, the rear electric doors electronic control module firmware/software was updated and a hardware dedicated wire kit was added for the rear door authorization request starting on 2021-11-23. Off line vehicle were also addressed with an internal campaign. Recall Schedule : Description of Recall Schedule : Note Nova Bus does not have a dealer network and the dates entered for the planned dealer notification begin/end date are only to avoid NHTSA Recall Portal error while submitting the recall report. Planned Dealer Notification Date : DEC 17, 2021 – DEC 17, 2021 Planned Owner Notification Date : DEC 17, 2021 – DEC 17, 2021 * NR – Not Reported

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