22E030 – Alternator Belt May Overheat Seized Bearing – Prevost

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April 6, 2022 NHTSA CAMPAIGN NUMBER: 22E030000

Alternator Belt May Overheat Seized Bearing

An overheated alternator bearing can increase the risk of a fire.

 

NHTSA Campaign Number: 22E030

Manufacturer Prevost Car (US) Inc.

Components ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM, EQUIPMENT

Potential Number of Units Affected 16,974

 

Summary

Prevost Car (US) Inc. (Prevost) is recalling certain alternator belts. Please see the safety recall report for a complete list of affected part numbers. In the event of the alternator front bearing seizing, the alternator belt may continue to operate, causing the bearing to overheat.

 

Remedy

Prevost will replace the alternator belt, free of charge. Owner notification letters were mailed September 26, 2022. Owners may contact Prevost customer service at 1-866-870-2046.

 

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.

 

Prevost Technical Publications

 


NHTSA SAFETY RECALL #22E-030

May 2022

 

INTERIM NOTICE We are currently preparing the remedy. We will notify you again when   the       parts    become available.

 

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IMPORTANT SAFETY RECALL

 

Dear Customer,

This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act.

Prevost Car (US) Inc. has decided that a defect which relates to motor vehicle safety exists in certain alternator belts sold through its parts network from 2015 to 2022.

These alternator belts where sold to customers as replacement for 2010 to 2023 Prevost vehicles and 2020 to 2022 Volvo 9700 coaches.

You are receiving this notice because our records indicate that you may have purchased at least one of the belts in the table below from a Prevost Parts Center.

 

Prevost Part Number Belt Type
506015 Belt, Poly V 10PK1892
506020 Belt, Poly V 8PK1575
506026 Belt, Poly V 10PK1695
506034 Belt, Poly V 10PK1695
506067 Belt Poly V 10PK1705
506070 Belt, Poly V 8PK1587
506077 Belt, Poly V 10PK1705
506080 Belt, Poly V 8PK1575
506083 Belt, Poly V 8PK1435
506114 Belt, Poly V 8PK1524
506134 Belt, Poly V 8PK1587
506167 Belt, Poly V 8PK1512
506188 Belt, Poly V 8PK1600
5060140 Belt, Poly V 8PK1840
23577315 Belt, Poly V 8PK1410 (Volvo 9700 only)
506084 Belt, Poly V 10PK1708

 

ISSUE DESCRIPTION

Upon the failure of an alternator front bearing, these robust alternator belts may continue to turn the alternator bearing even after the failure.

 

SAFETY RISK

If an alternator belt continues to turn a front damaged bearing, it could overheat causing a local fire.

 

REMEDY PROGRAM

Prevost will take back and reimburse you for non-installed belts listed in the table above.

If the belt has been installed, Prevost will change the defective belts for polyester belts free of charge (parts and labor) for the affected customers.

Prevost will shortly issue safety recall SR22-04 and safety recall SR22-83 and send a distinct notification letter to the owners of the affected vehicles. If one of your current vehicle is equipped with a belt listed above, these recall will instruct you how to proceed to get the proper remedy program.

 

New replacement belts are expected to be available on August 2022. A second notice informing customers when and how to proceed to get the new parts will be sent once remedy parts are available. Timelines may change based on supply chain improvements or challenges.

 

WHAT YOU NEED TO DO

We appreciate your patience while we are waiting for the parts. You will receive a second notification when the parts become available. 

In the meantime, the belts listed above have to be removed from your inventory and must not be installed in a vehicle to drive an alternator.

 

ASSISTANCE

If you need assistance, please contact your nearest Prevost Part Center. You will find the Prevost Parts & Service Centers location at this web address: https://prevostcar.com/contact/parts-service-center

 

COMPLAINTS

You may submit a complaint if you believe that Prevost Car US has failed or is unable to remedy the defect without charge or within 60 days of the owners first tender to obtain repair following the earliest remedy program repair date mentioned above.

You may submit the complaint to the Administrator of the National Highway Traffic Safety Administration located at 1200 New Jersey Avenue SE, Washington, DC 20590, USA or call the toll-free Vehicle Safety Hotline at: 1-888-327-4236, (TTY): 1-800-424-9153) or go to https://www.safercar.gov

 

We regret any inconvenience this may cause to your operations but hope you will appreciate our sincere efforts to demonstrate Prevost’s commitment to provide our customers with the best possible product.

 

Truly yours,

Prevost Part & Service Team

 


ER22-15A

ALTERNATOR BELTS REPLACEMENT

DESCRIPTION

Prevost has decided that a defect which relates to motor vehicle safety exists in certain alternator belts sold through its parts network from 2015 to 2022.

These alternator belts were sold to customers as replacement for 2010 to 2023 Prevost vehicles and 2020 to 2022 Volvo 9700 coaches

 

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Chronology :

-From 2016 to 2019 ten cases were reported through field reports for thermal events related to failure on alternator front bearings .

-2021-04-23 First analysis on alternator front bearing failure. No evidence was found to consider this failure as a safety related issue.

-2022-03-15 Internal inquiry was started to analyse root cause for thermal events on alternator front bearing.

A link between the introduction of new belts and an increase of thermal events related to alternator’ front bearing failure was identified. The case will be presented to Volvo Product Safety Committee (PSC)

-2022-03-30 Case presented to PSC. PSC decided there is a safety related defect and a recall is required

-2022-03-31 Preliminary discussion with NHTSA to expose the findings

-2022-04-06 Prevost submitted the vehicle defect report to NHTSA

 


1 Affected Product

Equipment

BRAND PART NO. PRODUCTION DATES
PREVOST ALTERNATOR BELT

 


17 Associated Documents

Recall Acknowledgement

RCAK-22E030-2940.pdf 645.868KB

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Defect Notice 573 Report

RCLRPT-22E030-6555.PDF 215.885KB

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Recall 573 Report-Amendment 1-04/12/2022

RCLRPT-22E030-6368.PDF 216.135KB

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ISSUED Interim Owner Notification Letter(Part 577)

RIONL-22E030-3933.pdf 172.26KB

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Recall 573 Report-Amendment 2 – 09/26/2022

RCLRPT-22E030-2817.PDF 244.655KB

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ISSUED Owner Notification Letter(Part 577)

RCONL-22E030-2575.pdf 1077.012KB

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Recall 573 Report – Amendment 3 – 10/03/2022

RCLRPT-22E030-6099.PDF 216.141KB

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Recall Quarterly Report #1, 2022-3

RCLQRT-22E030-8460.PDF 211.144KB

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Safety Bulletin

RCSB-22E030-7650.pdf 845.963KB

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Recall Quarterly Report #2, 2022-4

RCLQRT-22E030-6713.PDF 211.247KB

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Safety Bulletin

RCSB-22E030-6722.pdf 758.511KB

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Recall 573 Report-Amendment 4 – 02/13/2023

RCLRPT-22E030-6691.PDF 216.311KB

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ISSUED Owner Notification Letter(Part 577) – 2nd Letter

RCONL-22E030-7271.pdf 1077.012KB

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Recall Quarterly Report #3, 2023-1

RCLQRT-22E030-2006.PDF 211.339KB

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Recall Quarterly Report #4, 2023-2

RCLQRT-22E030-2377.PDF 211.447KB

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ISSUED Renotification Notice

RCRN-22E030-8295.pdf 1012.932KB

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Recall Quarterly Report #5, 2023-3

RCLQRT-22E030-1191.PDF 211.693KB

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Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=22E030&docType=RCL

 


1 Associated Investigation

Alternator Front Bearing Failure
NHTSA ID: PE21011
Dated opened: May 13, 2021

NHTSA’s Office of Defects Investigation (ODI) is opening a Preliminary Evaluation after receiving a tip from a fleet safety manager concerning alternator front bearing failures that cause elevated temperatures within the engine compartment, resulting in the fire suppression system (FSS) activating, immediately shutting the engine down, and rendering the bus inoperable.

Review of Early Warning Reporting Data identified 9 field reports for Model Year (MY)2015 through MY2019 H3 and X3 Prevost buses, describing alternator failures in any of 3 alternators equipped on the bus. In some cases, a minor fire occurred damaging nearby electrical harnesses.

An immediate shut down of the bus can increase the risk of a crash or injury of passengers when transferring to another bus.

ODI is opening this investigation to evaluate the cause, consequence, scope and frequency of the alleged defect in the subject Prevost buses.


 

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