Alternator Belt May Overheat Seized Bearing – 2020 Volvo 9700

April 6, 2022 NHTSA CAMPAIGN NUMBER: 22V222000

Alternator Belt May Overheat Seized Bearing

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

 

NHTSA Campaign Number: 22V222000

Manufacturer Volvo Bus Corporation

Components ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM

Potential Number of Units Affected 47

 

Summary

Volvo Bus Corporation (Volvo Bus) is recalling certain 2020 Volvo 9700 DOT vehicles. In the event of the alternator front bearing seizing, the alternator belt may continue to operate, causing the bearing to overheat.

 

Remedy

Volvo Bus will replace the alternator belt, free of charge. Owner notification letters are expected to be mailed June 3, 2022. Owners may contact Volvo Bus 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.

 


1 Affected Product

Vehicle

MAKE MODEL YEAR
VOLVO BUS 9700 2020

 


3 Associated Documents

Recall Acknowledgement

RCAK-22V222-6536.pdf 645.407KB

RCAK-22V222-6536

 


Defect Notice 573 Report

RCLRPT-22V222-6814.PDF 213.821KB

RCLRPT-22V222-6814

 


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

RCLRPT-22V222-9414.PDF 213.982KB

RCLRPT-22V222-9414

 


Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=22V222&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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Last update on 2022-10-04 / Affiliate links / Images from Amazon Product Advertising API

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