Electrical Short Circuit May Cause Engine Stall – 2022 Rosenbauer Commander & 2023 Commercial M2-106 Fire Trucks

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1 Lisa Sampson From: Lisa Sampson Sent: Saturday, August 27, 2022 11:21 AM To: recalls Subject: Informal Notification – Upcoming Recall 22V-620 / 2022-459 Attachments: Cummins Letter to Rosenbauer_22E-063 Notification 04AUG22.pdf Hello Valued Rosenbauer Dealers, We have submitted our initial paperwork to NHTSA and Transport Canada regarding an upcoming recall initiated by Cummins for X12, X15 and L9 Engines that could have defective ECMs resulting in an unexpected stall of the engine. We have a total of 17 trucks impacted thus far for the US and Canada but note: all will be remedied prior to leaving Rosenbauer unless we find out more trucks are involved. I have attached the notification letter we received from Cummins which will describe the safety risk. You can also access the US recall filing from Rosenbauer at this link. At this time, we know we will be making a revision to our impacted make and models since we were still gathering information at the time of the recall. The Cummins recall is not live in QuickServe Online since Rosenbauer was given special approval to remedy our trucks before some of the general population. If you ask your Cummins representative about the recall, they may not know about it. This email is to provide an informal notification. If all recalled trucks are remedied in Production, we are not required to formally notify the customers, but we will update our Dealers with an email. We will also enter the SRS tickets to track what was remedied. There is a small chance that the population will expand beyond the 17 trucks so if that happens, we will follow the proper procedures regarding notification with a remedy plan. Feel free to reach out should you have any questions regarding recalls or technical service bulletins at recalls@rosenbaueramerica.com. Thank you, Lisa Sampson Rosenbauer America, LLC Compliance Manager 100 3rd St. Lyons, SD 57041 www.RosenbauerAmerica.com redacted

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-620 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Rosenbauer America Submission Date : AUG 11, 2022 NHTSA Recall No. : 22V-620 Manufacturer Recall No. : C2614 Manufacturer Information : Manufacturer Name : Rosenbauer America Address : 5190 260th street Wyoming MN 55092 Company phone : 6514621000 Population : Number of potentially involved : 11 Estimated percentage with defect : 2 % Vehicle Information : Vehicle 1 : 2022-2022 Rosenbauer Commander Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : Power Train : NR Descriptive Information : Certain Cummins X12, X15 and L9 engines have been recalled due their Engine Control Modules (ECM) developing an internal electrical short, possibly resulting in an engine stalling without warning, which may lead to an increased risk of a crash. Production Dates : JUN 03, 2022 – AUG 11, 2022 VIN Range 1 : Begin : 54F2GCCX7NWM13359 End : 54F3JECL2NWM13381 ✔ Not sequential Vehicle 2 : 2023-2023 Commercial M2-106 Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : Power Train : NR Descriptive Information : Certain Cummins X12, X15 and L9 engines have been recalled due their Engine Control Modules (ECM) developing an internal electrical short, possibly resulting in an engine stalling without warning, which may lead to an increased risk of a crash. Production Dates : JUN 03, 2022 – AUG 11, 2022 VIN Range 1 : Begin : 1FVDCYFE0PHUD0634 End : 1FVDCYFE2PHUD0635 ✔ Not sequential Description of Defect : Description of the Defect : The Engine Control Modules (ECM) in some engines installed in Rosenbauer firetrucks may have a defect that could develop an internal electrical short. The possible result could be a stalled engine that cannot be restarted until the ECM is replaced. FMVSS 1 : NR Part 573 Safety Recall Report 22V-620 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 FMVSS 2 : NR Description of the Safety Risk : The engine may stall unexpectedly, without warning and not be able to restart which could increase the risk of a crash. Description of the Cause : Per Cummins: a screw in the supplier’s selective solder fixture backed out of position, pushing an electrolytic capacitor frame into the Printed Circuit Board (PCB) during ECM production. Identification of Any Warning that can Occur : None per Cummins Involved Components : Component Name 1 : Cummins X12 Engine Component Description : D0S3009BX03 Component Part Number : 8623191, 8623190 Component Name 2 : Cummins L9 Engine Component Description : D563027BX03 Component Part Number : n/a Supplier Identification : Component Manufacturer Name : Cummins Address : 800 West Ryan Road Oak Creek Wisconsin 53154 Country : United States Chronology : “On 8/4/2022, Cummins contacted Rosenbauer alerting them of a recall impacting 7 engines we purchased for our Rosenbauer chassis. The ESNs were provided and matched up to the VINs that same day and verified on Friday 8/5/2022. The list was sent back to Cummins and Production at Rosenbauer was alerted. The engines were not installed in trucks yet and were located on Monday 8/8/2022 at Rosenbauer Motors (Chassis) Plant in MN. Cummins White Bear Lake was notified and Cummins Corporate shipped replacement ECMs to Cummins WBL. The Cummins tech came to Rosenbauer Motors on 8/10/2022 and successfully replaced the Part 573 Safety Recall Report 22V-620 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 ECMs on all but 1 engine for Rosenbauer chassis. On Monday 8/8/2022, Cummins alerted Rosenbauer of the Commercial chassis that were impacted as well per their report on shipped engines to Daimler Trucks. On Wednesday 8/10/2022, those ESNs and VINs were matched up and 4 more have been added to the population. Because these trucks are assumed to be in Production, they were alerted Thursday 8/11/2022 to locate the chassis. Rosenbauer fully expects more Commercial trucks to be added and will need to file an amendment as information is acquired. However, we have notified Cummins Sioux Falls to replace the ECMs since the trucks are located at our Lyons, SD plant. Description of Remedy : Description of Remedy Program : Cummins will perform the remedy to recalled trucks while in Production and prior to shipment by replacing the ECM and possibly the fuse. If any trucks are added to the population, we will work with Cummins to address trucks in production immediately and if any of those additional trucks are with the customer or dealer, we will notify officially in 60 days or sooner. All parts and labor to perform the remedy will be provided to our customers free of charge. Rosenbauer will work with our Dealers as well if there are any recalled trucks in their possession. How Remedy Component Differs from Recalled Component : None was given by Cummins. Identify How/When Recall Condition was Corrected in Production : All Rosenbauer firetrucks impacted as listed in the 8/11/2022 recall filing will be remedied before shipment or delivery to customer. Recall Schedule : Description of Recall Schedule : Rosenbauer will notify any customers with impacted trucks in the next 60 days or sooner if parts are available through regionalized Cummins facilities. Dealers will be notified informally once a recall number has been assigned and then officially when the customers are notified. Planned Dealer Notification Date : AUG 16, 2022 – OCT 11, 2022 Planned Owner Notification Date : SEP 25, 2022 – OCT 11, 2022 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-620 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Rosenbauer America Submission Date : OCT 31, 2022 NHTSA Recall No. : 22V-620 Manufacturer Recall No. : C2614 Manufacturer Information : Manufacturer Name : Rosenbauer America Address : 5190 260th street Wyoming MN 55092 Company phone : 6514621000 Population : Number of potentially involved : 11 Estimated percentage with defect : 2 % Vehicle Information : Vehicle 1 : 2022-2022 Rosenbauer Commander Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : Power Train : NR Descriptive Information : Certain Cummins X12, X15 and L9 engines have been recalled due their Engine Control Modules (ECM) developing an internal electrical short, possibly resulting in an engine stalling without warning, which may lead to an increased risk of a crash. Production Dates : JUN 03, 2022 – AUG 11, 2022 VIN Range 1 : Begin : 54F2GCCX7NWM13359 End : 54F3JECL2NWM13381 ✔ Not sequential Vehicle 2 : 2023-2023 Commercial M2-106 Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : Power Train : NR Descriptive Information : Certain Cummins X12, X15 and L9 engines have been recalled due their Engine Control Modules (ECM) developing an internal electrical short, possibly resulting in an engine stalling without warning, which may lead to an increased risk of a crash. Production Dates : JUN 03, 2022 – AUG 11, 2022 VIN Range 1 : Begin : 1FVDCYFE0PHUD0634 End : 1FVDCYFE2PHUD0635 ✔ Not sequential Description of Defect : Description of the Defect : The Engine Control Modules (ECM) in some engines installed in Rosenbauer firetrucks may have a defect that could develop an internal electrical short. The possible result could be a stalled engine that cannot be restarted until the ECM is replaced. FMVSS 1 : NR Part 573 Safety Recall Report 22V-620 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 FMVSS 2 : NR Description of the Safety Risk : The engine may stall unexpectedly, without warning and not be able to restart which could increase the risk of a crash. Description of the Cause : Per Cummins: a screw in the supplier’s selective solder fixture backed out of position, pushing an electrolytic capacitor frame into the Printed Circuit Board (PCB) during ECM production. Identification of Any Warning that can Occur : None per Cummins Involved Components : Component Name 1 : Cummins X12 Engine Component Description : D0S3009BX03 Component Part Number : 8623191, 8623190 Component Name 2 : Cummins L9 Engine Component Description : D563027BX03 Component Part Number : n/a Supplier Identification : Component Manufacturer Name : Cummins Address : 800 West Ryan Road Oak Creek Wisconsin 53154 Country : United States Chronology : On 8/4/2022, Cummins contacted Rosenbauer alerting them of a recall impacting 7 engines we purchased for our Rosenbauer chassis. The ESNs were provided and matched up to the VINs that same day and verified on Friday 8/5/2022. The list was sent back to Cummins and Production at Rosenbauer was alerted. The engines were not installed in trucks yet and were located on Monday 8/8/2022 at Rosenbauer Motors (Chassis) Plant in MN. Cummins White Bear Lake was notified and Cummins Corporate shipped replacement ECMs to Cummins WBL. The Cummins tech came to Rosenbauer Motors on 8/10/2022 and successfully replaced the Part 573 Safety Recall Report 22V-620 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 ECMs on all but 1 engine for Rosenbauer chassis. On Monday 8/8/2022, Cummins alerted Rosenbauer of the Commercial chassis that were impacted as well per their report on shipped engines to Daimler Trucks. On Wednesday 8/10/2022, those ESNs and VINs were matched up and 4 more have been added to the population. Because these trucks are assumed to be in Production, they were alerted Thursday 8/11/2022 to locate the chassis. Rosenbauer fully expects more Commercial trucks to be added and will need to file an amendment as information is acquired. However, we have notified Cummins Sioux Falls to replace the ECMs since the trucks are located at our Lyons, SD plant. As of 9/13/22, all trucks were remedied while in Production at Rosenbauer prior to any delivery or shipment to customers. Description of Remedy : Description of Remedy Program : Cummins will perform the remedy to recalled trucks while in Production and prior to shipment by replacing the ECM and possibly the fuse. If any trucks are added to the population, we will work with Cummins to address trucks in production immediately and if any of those additional trucks are with the customer or dealer, we will notify officially in 60 days or sooner. All parts and labor to perform the remedy will be provided to our customers free of charge. Rosenbauer will work with our Dealers as well if there are any recalled trucks in their possession. How Remedy Component Differs from Recalled Component : None was given by Cummins. Identify How/When Recall Condition was Corrected in Production : All Rosenbauer firetrucks impacted as listed in the 8/11/2022 recall filing will be remedied before shipment or delivery to customer. Recall Schedule : Description of Recall Schedule : Rosenbauer did not need to notify customers in any capacity since all trucks were remedied in August-September 2022 while in Production, prior to shipment or delivery to Customers or Dealers. Planned Dealer Notification Date : AUG 16, 2022 – OCT 11, 2022 Planned Owner Notification Date : SEP 25, 2022 – OCT 11, 2022 * NR – Not Reported

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