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May 28, 2024 NHTSA CAMPAIGN NUMBER: 24V374000
Incorrect Fuse May Overheat and Cause Fire
An incorrect fuse may overheat and increase the risk of a fire.
NHTSA Campaign Number: 24V374
Manufacturer BYD Coach & Bus
Components ELECTRICAL SYSTEM, VISIBILITY
Potential Number of Units Affected 227
Summary
BYD Coach & Bus (BYD) is recalling certain 2019-2023 BYD RIDE C10M, K7M, K8M, K9M, K9S, K9MD, and K11M transit buses. The rearview mirror control switch module may have been manufactured with an incorrect fuse.
Remedy
BYD will replace the fuse in the mirror control switch module with a 1-AMP fuse, free of charge. Owner notification letters are expected to be mailed June 10, 2024. Owners may contact BYD customer service at 1-661-940-3250.
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.safercar.gov.
Chronology :
1. On 2/2/2024, a BYD/RIDE customer reported malfunctioning external rear-view mirror switches on three buses including overheating at the mirror switch base. BYD/RIDE identified the issue as related to Safe Fleet mirror switches and notified Safe Fleet. On 2/7/2024, BYD/RIDE shipped two of the customer’s switches to Safe Fleet and requested it conduct a failure cause analysis.
2. From 2/6/2024 to 2/14/2024, four additional cases of external rear-view mirror switch malfunctions were reported to BYD/RIDE. No further malfunctions of the same or similar type have been reported since.
3. On 2/29/2024, Safe Fleet informed BYD/RIDE that the technical solution to prevent similar failures was to replace the 5A fuse in the switches with a 1A fuse.
4. On 3/1/2024, BYD/RIDE confirmed that its bus design was not the cause of the switch failures and informed Safe Fleet of its findings, providing the bus side mirror and switch diagrams to substantiate its conclusion.
5. On 4/3/2024, NHTSA informed BYD/RIDE that bus manufacturer Gillig LLC had filed recall 23V-812, indicating a safety defect in certain 2021-2023 Gillig Low Floor buses using the same mirror control switch module from Safe Fleet. BYD/RIDE then investigated whether it used the same switch module and conducted a warranty analysis, concluding that it did use the same module indicated in the Gillig recall but BYD had not observed instances of heavy smoke as reported by Gillig.
6. On 5/20/2024, BYD/RIDE decided to file a safety recall to address the potentially affected vehicle population. While BYD/RIDE does not definitively know if the same underlying issue reported by Gillig applies to its vehicles, the company is taking this step in an abundance of caution.
35 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| BYD | C10M | 2019-2023 |
| BYD | K11M | 2019-2023 |
| BYD | K7M | 2019-2023 |
| BYD | K8M | 2019-2023 |
| BYD | K9M | 2019-2023 |
| BYD | K9MD | 2019-2023 |
| BYD | K9S | 2019-2023 |
2 Associated Documents
Recall 573 Report
RCLRPT-24V374-6266.PDF 218.916KB
Recall Acknowledgement
RCAK-24V374-6228.pdf 646.272KB
Latest Recalls Documents
https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=24V374&docType=RCL
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Last update on 2024-06-11 / Affiliate links / Images from Amazon Product Advertising API
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OMB Control No.: 2127-0004
Part 573 Safety Recall Report 24V-374
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : BYD Coach & Bus
Submission Date : MAY 28, 2024
NHTSA Recall No. : 24V-374
Manufacturer Recall No. : NR
Manufacturer Information :
Manufacturer Name : BYD Coach & Bus
Address : 46147 BYD Blvd
Lancaster CA 93534
Company phone : 661-940-3250
Population :
Number of potentially involved : 227
Estimated percentage with defect : 100 %
Vehicle Information :
Part 573 Safety Recall Report 24V-374 Page 2
The information contained in this report was submitted pursuant to 49 CFR §573
Vehicle 1 : 2019-2023 BYD/RIDE K7M,K8M,K9M,K9S,K9MD,C10M,K11M
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES
Body Style : OTHER
Power Train : NR
Descriptive Information : The recall population includes vehicles where production records indicate the subject
component was installed at the time of original vehicle manufacture or thereafter.
The recall population excludes vehicles produced prior to sourcing of the subject
component and after the date on which containment of the subject component was
implemented.
Production Dates : JAN 01, 2021 – MAY 02, 2024
VIN Range 1 : Begin : 4B9KDLA43P2038021 End : 4B9KDLA43P2038027 Not sequential
VIN Range 2 : Begin : 4B9KDLA44P2038030 End : 4B9KDLA46P2038031 Not sequential
VIN Range 3 : Begin : 4B9KTHA84P2038001 End : 4B9KTHA84P2038001 Not sequential
VIN Range 4 : Begin : 4B9KALA68P2038011 End : 4B9KALA61P2038013 Not sequential
VIN Range 5 : Begin : 4B9KDLA6XP2038017 End : 4B9KDLA63P2038022 Not sequential
VIN Range 6 : Begin : 4B9KCGA84P2038011 End : 4B9KCGA81P2038015 ✔ Not sequential
VIN Range 7 : Begin : 4B9KALA65P2038001 End : 4B9KALA62P2038005 Not sequential
VIN Range 8 : Begin : 4B9KDLA60P2038009 End : 4B9KDLA68P2038016 Not sequential
VIN Range 9 : Begin : 4B9KSLA65N2038011 End : 4B9KSLA60N2038014 Not sequential
VIN Range 10 : Begin : 4B9KTHA86P2038002 End : 4B9KTHA83P2038006 Not sequential
VIN Range 11 : Begin : 4B9KALA62N2038003 End : 4B9KALA62N2038003 Not sequential
VIN Range 12 : Begin : 4B9KALA64P2038006 End : 4B9KALA68P2038008 Not sequential
VIN Range 13 : Begin : 4B9KDLA62N2038008 End : 4B9KDLA62N2038008 Not sequential
VIN Range 14 : Begin : 4B9KDLA42N2038041 End : 4B9KDLA46N2038043 Not sequential
VIN Range 15 : Begin : 4B9KSLA80N2038001 End : 4B9KSLA84N2038003 Not sequential
VIN Range 16 : Begin : 4B9KDLA41N2038001 End : 4B9KDLA48P2038015 ✔ Not sequential
VIN Range 17 : Begin : 4B9KALA66M2038004 End : 4B9KALA6XM2038006 Not sequential
VIN Range 18 : Begin : 4B9KTHA81N2038003 End : 4B9KTHA81N2038003 Not sequential
VIN Range 19 : Begin : 4B9KALA64N2038004 End : 4B9KALA66N2038005 Not sequential
VIN Range 20 : Begin : 4B9KDLA65K2038001 End : 4B9KDLA67K2038002 Not sequential
VIN Range 21 : Begin : 4B9KDLA43MB038001 End : 4B9KDLA43MB038001 Not sequential
VIN Range 22 : Begin : 4B9KALA60M2038001 End : 4B9KALA60M2038001 Not sequential
VIN Range 23 : Begin : 4B9KSLA64M2038015 End : 4B9KSLA66M2038016 Not sequential
VIN Range 24 : Begin : 4B9KTHA8XM2038001 End : 4B9KTHA8XM2038001 Not sequential
VIN Range 25 : Begin : 4B9KDLA61M2038001 End : 4B9KDLA61M2038001 Not sequential
VIN Range 26 : Begin : 4B9KSLA86M2038003 End : 4B9KSLA88N2038005 Not sequential
VIN Range 27 : Begin : 4B9KSLA64M2038001 End : 4B9KSLA62M2038014 Not sequential
VIN Range 28 : Begin : 4B9KDLA45M2038002 End : 4B9KDLA4XM2038030 Not sequential
VIN Range 29 : Begin : 4B9KSLA65L2038006 End : 4B9KSLA67L2038024 ✔ Not sequential
VIN Range 30 : Begin : 4B9KCGA89M2038002 End : 4B9KCGA8XM2038011 Not sequential
VIN Range 31 : Begin : 4B9KCGA89L2038001 End : 4B9KCGA86L2038005 Not sequential
Part 573 Safety Recall Report 24V-374 Page 3
The information contained in this report was submitted pursuant to 49 CFR §573
Description of Defect :
Description of the Defect : The fuse rating of the mirror control switch module may be inadequate to
ensure appropriate protection against overheating. As a result, BYD/RIDE has
decided to voluntarily initiate a safety recall campaign for the vehicle
population that may be affected by the issue.
FMVSS 1 : NR
FMVSS 2 : NR
Description of the Safety Risk : An incorrect fuse rating may cause the mirror control switch module to
overheat, which could potentially increase the risk of malfunction or
overheating.
Description of the Cause : NR
Identification of Any Warning
that can Occur :
BYD/RIDE is not aware of any warning that can occur.
Involved Components :
Component Name 1 : Mirror Control Joystick Switch
Component Description : The switch is to adjust the external rear view mirror, right and left, up and down
Component Part Number : X516-3ASY
Supplier Identification :
Component Manufacturer
Name : Safe Fleet
Address : 13501 S. Ridge Drive,
Charlotte North Carolina 28273
Country : United States
Chronology :
1. On 2/2/2024, a BYD/RIDE customer reported malfunctioning external rear-view mirror switches on
three buses including overheating at the mirror switch base. BYD/RIDE identified the issue as related to Safe
Fleet mirror switches and notified Safe Fleet. On 2/7/2024, BYD/RIDE shipped two of the customer’s switches
to Safe Fleet and requested it conduct a failure cause analysis.
2. From 2/6/2024 to 2/14/2024, four additional cases of external rear-view mirror switch malfunctions
Part 573 Safety Recall Report 24V-374 Page 4
The information contained in this report was submitted pursuant to 49 CFR §573
were reported to BYD/RIDE. No further malfunctions of the same or similar type have been reported since.
3. On 2/29/2024, Safe Fleet informed BYD/RIDE that the technical solution to prevent similar failures
was to replace the 5A fuse in the switches with a 1A fuse.
4. On 3/1/2024, BYD/RIDE confirmed that its bus design was not the cause of the switch failures and
informed Safe Fleet of its findings, providing the bus side mirror and switch diagrams to substantiate its
conclusion.
5. On 4/3/2024, NHTSA informed BYD/RIDE that bus manufacturer Gillig LLC had filed recall 23V-812,
indicating a safety defect in certain 2021-2023 Gillig Low Floor buses using the same mirror control switch
module from Safe Fleet. BYD/RIDE then investigated whether it used the same switch module and conducted a
warranty analysis, concluding that it did use the same module indicated in the Gillig recall but BYD had not
observed instances of heavy smoke as reported by Gillig.
6. On 5/20/2024, BYD/RIDE decided to file a safety recall to address the potentially affected vehicle
population. While BYD/RIDE does not definitively know if the same underlying issue reported by Gillig applies
to its vehicles, the company is taking this step in an abundance of caution.
Description of Remedy :
Description of Remedy Program : All vehicle owners involved will be notified of the recall, and all affected
vehicles will be corrected at no cost to the customer by replacing the
current 5AMP fuse in the mirror control switch module with a 1AMP fuse.
BYD/RIDE will cover all costs incurred by the customers for any
prenotification repair in accordance with the recall reimbursement plan
on file with NHTSA.
How Remedy Component Differs
from Recalled Component :
The remedy component consists of a modified switch that incorporates a
1AMP protection fuse.
Identify How/When Recall Condition
was Corrected in Production :
BYD\RIDE implemented factory containment on 5/2/2024, any vehicle
delivery after this date is not affected by this issue.
Recall Schedule :
Description of Recall Schedule : BYD/RIDE did not sell the vehicles listed through dealers.
Planned Dealer Notification Date : NR – NR
Planned Owner Notification Date : JUN 10, 2024 – JUL 25, 2024
* NR – Not Reported
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