June 4, 2023 NHTSA CAMPAIGN NUMBER: 23V401000
Power Cables May Not Be Tightened Properly
A relay that fails in the closed position will continue to power the cabin heater, overheating the relay and increasing the risk of a fire.
NHTSA Campaign Number: 23V401
Manufacturer Volvo Trucks
North America
Components ELECTRICAL SYSTEM
Potential Number of Units Affected 243
Summary
Volvo Trucks North America (Volvo Trucks) is recalling certain 2019-2023 VNR Electric vehicles. The power cables that connect to the windscreen heater relay may have a loose connection and cause the relay to fail.
Remedy
Dealers will tighten the power cable to relay connections, free of charge. Owner notification letters are expected to be mailed August 4, 2023. Owners may contact Volvo Trucks’ customer service at 1-800-528-6586. Volvo Trucks’ number for this recall is RVXX2306.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Description of Defect:
Insufficient torque on the power cables to relays may result in a relay failure which could continue to power the cabin heater. Relay failure and overheating could result in a vehicle fire.
There have been no warranty claims, field reports, accidents or injuries reported with this issue.
Vehicles will be recalled and the power cables to relays will be properly torqued.
Models/ Model Years Affected:
Certain 2020 to 2023 Volvo VNR Electric model vehicles manufactured from June 29, 2018 through October 19, 2022.
Vehicle Quantities:
246 (243 US, 3 Canada)
Dealer’s Responsibility:
The National Traffic and Motor Vehicle Safety Act and Canadian Motor Vehicle Safety Act requires dealers to ensure that all new and used vehicles are free of safety defects and comply with all relevant safety standards at the time of delivery to the consumer.
Dealers should make their personnel aware of the safety recall. In the event that a dealer has a vehicle included in the safety recall in their inventory to be sold, the condition must be corrected before releasing it to a customer.
Release Schedule:
- Vehicle list will be posted on the Trucks Dealer Portal June 9, 2023.
- Owner notification letters will be released on or before August 4, 2023.
- Repair Instruction will be released once they are available.
If you have questions or concerns about this recall, contact the Regulatory Affairs Department at vtna.regulatoryaffairs@volvo.com.
Chronology :
March 2, 2023 Reliability and Quality report to Product Safety Working Group that they have had two cabin coolant heater relay failures which indicated the heater continued to stay powered and damaged the heater.
March 8, 2023 Product Safety Working Group opens an investigation and requests failed components from the field.
March 22, 2023 Engineering provides initial failure analysis results.
March 27, 2023 Product Safety Working Group reviews product safety investigation results and recommends supplier of the relay provide their input and asks for additional review of incidents and vehicle data.
May 15, 2023 Product Safety Working Group meets and recommends that this be brought to to the Product Safety Committee as a potential product safety defect.
May 30, 2023 The Product Safety Committee meets and decides that a product safety defect exists.
June 4, 2023 573 Report filed with NHTSA
There have been 2 field reports, and no accidents or injuries reported with this issue
5 Affected Products
Vehicle
| MAKE | MODEL | YEAR |
| VOLVO | VNRE | 2019-2023 |
3 Associated Documents
Recall Acknowledgement
RCAK-23V401-8012.pdf 645.864KB
Defect Notice 573 Report
RCLRPT-23V401-5033.PDF 215.221KB
Volvo Trucks – Safety Recall Alert – June 2023
RCMN-23V401-0080.pdf 137.879KB
Latest Recalls Documents
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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 23V-401 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Volvo Trucks North America Submission Date : JUN 04, 2023 NHTSA Recall No. : 23V-401 Manufacturer Recall No. : RVXX2306 Manufacturer Information : Manufacturer Name : Volvo Trucks North America Address : 7900 National Service Road Greensboro NC 27409 Company phone : 800 528 6586 Population : Number of potentially involved : 243 Estimated percentage with defect : 1 % Vehicle Information : Vehicle 1 : 2019-2023 Volvo VNR Electric Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : HYBRID ELECTRIC Descriptive Information : Vehicles which were built during a period where power cable to relay torque are suspect of not being sufficient or properly controlled. Production Dates : JUN 29, 2019 – OCT 19, 2021 VIN Range 1 : Begin : 4V4W19KN0NN611441 End : 4V5W39KN4MN600141 ✔ Not sequential Description of Defect : Description of the Defect : Insufficient torque on the power cables to relays may result in a relay failure which could continue to power the cabin heater. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : The risk is a loose connection to the relays which could result in a relay failure and overheating and failing in a closed position which could continue to power the cabin heater which could result in a fire. Description of the Cause : Torque control in the factory in-sufficient for application. Identification of Any Warning that can Occur : There are no warnings associated with this issue. Involved Components : Part 573 Safety Recall Report 23V-401 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : Relay Component Description : Windscreen Heater 24V/50A Component Part Number : 20709545 Supplier Identification : Component Manufacturer Name : Volvo Address : NR NR Country : NR Chronology : March 2, 2023 Reliability and Quality report to Product Safety Working Group that they have had two cabin coolant heater relay failures which indicated the heater continued to stay powered and damaged the heater. March 8, 2023 Product Safety Working Group opens an investigation and requests failed components from the field. March 22, 2023 Engineering provides initial failure analysis results. March 27, 2023 Product Safety Working Group reviews product safety investigation results and recommends supplier of the relay provide their input and asks for additional review of incidents and vehicle data. May 15, 2023 Product Safety Working Group meets and recommends that this be brought to to the Product Safety Committee as a potential product safety defect. May 30, 2023 The Product Safety Committee meets and decides that a product safety defect exists. June 4, 2023 573 Report filed with NHTSA There have been 2 field reports, and no accidents or injuries reported with this issue Description of Remedy : Description of Remedy Program : Vehicles will be recalled and the power cables to relays will be properly torqued. Reimbursement for the recall will be covered by Manufacturer’s Reimbursement Plan on file with NHTSA. How Remedy Component Differs from Recalled Component : The remedy component has proper torque on the fasteners on the power cables to the relays. Relay, Windscreen Heater 24V, 20709545 Identify How/When Recall Condition was Corrected in Production : All vehicles impacted put on hold until the issue has been corrected Vehicles on hold will be corrected before being released. Production was corrected on March 29, 2023 Part 573 Safety Recall Report 23V-401 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Recall Schedule : Description of Recall Schedule : Dealer notification will begin on June 9, 2023 and owner notification will begin on August 4, 2023 Planned Dealer Notification Date : JUN 09, 2023 – JUN 09, 2023 Planned Owner Notification Date : AUG 04, 2023 – AUG 04, 2023 * NR – Not Reported
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Volvo Trucks Uptime Page 1 of 1 © 2023 Volvo Group North America, LLC. CONFIDENTIAL – For limited distribution only to circulation list above. This bulletin, and any information herein, is subject to change by Company without notice. For the most current and accurate information, always refer to Trucks Dealer Portal for the electronic version of this document.. Recall Alerts Description of Defect: Insufficient torque on the power cables to relays may result in a relay failure which could continue to power the cabin heater. Relay failure and overheating could result in a vehicle fire. There have been no warranty claims, field reports, accidents or injuries reported with this issue. Vehicles will be recalled and the power cables to relays will be properly torqued. Models/ Model Years Affected: Certain 2020 to 2023 Volvo VNR Electric model vehicles manufactured from June 29, 2018 through October 19, 2022. Vehicle Quantities: 246 (243 US, 3 Canada) Dealer’s Responsibility: The National Traffic and Motor Vehicle Safety Act and Canadian Motor Vehicle Safety Act requires dealers to ensure that all new and used vehicles are free of safety defects and comply with all relevant safety standards at the time of delivery to the consumer. Dealers should make their personnel aware of the safety recall. In the event that a dealer has a vehicle included in the safety recall in their inventory to be sold, the condition must be corrected before releasing it to a customer. Release Schedule: • Vehicle list will be posted on the Trucks Dealer Portal June 9, 2023. • Owner notification letters will be released on or before August 4, 2023. • Repair Instruction will be released once they are available. If you have questions or concerns about this recall, contact the Regulatory Affairs Department at vtna.regulatoryaffairs@volvo.com. To: Dealer Principals Service Managers Warranty Managers Parts Managers Region: ☒U.S. ☒CAN Bulletin: SRA-V23-04 Date: June 9, 2023 Valid to: N/A Action Required? ☒Yes ☐No From: Gerard Hones, Product Regulation Specialist Subject: Safety Recall RVXX2306, E Mob Heater Relay
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