The Recall Desk
Our severity:SevereNHTSA·22E052000·Announced 2022-06-21

Proterra Recalls High Voltage Junction Box DC Links for Electrical Defect

Proterra is recalling 185 High Voltage Junction Box DC Links because a battery cable may not be properly connected, risking power loss, ground short circuits, or fire.

What this means for you

Our assessment, not the agency’s: severity 4/5 (Severe).

The hazard poses a serious risk of illness, injury, or structural failure. Stop using the product immediately and contact the manufacturer for a refund or repair.

Our severity reasoning: The recall involves a structural vehicle defect (electrical propulsion system) with explicit risks of fire, crash, and injury to passengers during evacuation, meeting the criteria for a Severe rating.

Plain-English summary

Proterra Operating Company, Inc. is recalling certain High Voltage Junction Box (HVJB) DC Links with part number 051071. The recall affects 185 units. The defect involves a high voltage battery cable that may not be properly connected.

This connection issue can cause a loss of electrical power or a ground short circuit. An unexpected engine shutdown increases the risk of a crash. Additionally, a disabled school bus may require an evacuation procedure in an uncontrolled traffic situation, increasing the risk of injury to passengers. A ground short circuit can also increase the risk of a fire.

Proterra will inspect and repair, or replace the battery cable, as necessary, free of charge. Owner notification letters were mailed on September 12, 2022. Owners may contact Proterra's customer service at 1-864-438-0000. Proterra's number for this recall is SC-22-025. 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.

The recalled product

Product
ELECTRICAL SYSTEM:PROPULSION SYSTEM: CABLES recall
Manufacturer
Proterra Operating Company, Inc.
Category
Vehicle — Electric Propulsion System
Hazard
Affected units
185

Distribution

Distributed nationwide across the United States.

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