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Blue Bird ALL American School Bus Recall 21V253: Electrical Fault Undetected, Risking Shock to Service Workers

NHTSA campaign 21V253, reported April 12, 2021, 292 vehicles potentially affected.

What this recall means for you

On certain 2018-2021 Blue Bird Vision and All American school buses, the electric drive system cannot detect isolation faults while the high voltage contactors are closed. An undetected high voltage isolation fault can expose service personnel to high voltage, which increases the risk of injury.

Dealers will update the Vehicle Control Unit software or install a different combination of High Voltage Power Distribution Unit hardware, at no cost to owners. Blue Bird will notify owners directly. If you have questions, you can contact Blue Bird customer service at 1-478-822-2242, referencing recall R21BD-SB.

Check your vehicle's VIN for open recalls and contact an authorized Blue Bird dealer to schedule the free repair.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 21V253Blue Bird Body Company
Component
ELECTRICAL SYSTEM:PROPULSION SYSTEM:FUSES, RELAYS, CONTACTS, AND SHUNTS; ELECTRICAL SYSTEM:PROPULSION SYSTEM:SHOCK PROTECTION; ELECTRICAL SYSTEM:SOFTWARE
Problem
Blue Bird Body Company (Blue Bird) is recalling certain 2018-2021 Vision and All American school buses. The electric drive train cannot detect isolation faults when the high voltage contactors are closed.
Risk
An undetected high voltage isolation can expose service personnel to high voltage, increasing the risk of injury.
Remedy
Blue Bird will notify owners, and dealers will update the Vehicle Control Unit software or install a different combination of High Voltage Power Distribution Unit hardware, free of charge. The recall began on May 22, 2021. Owners may contact Blue Bird customer service at 1-478-822-2242. Blue Bird's number for this recall is R21BD-SB.
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.

Affected vehicles

Blue Bird ALL American20182019
Blue Bird ALL American School Bus20202021
Blue Bird Vision20182019
Blue Bird Vision School Bus20202021