The Recall Desk
HighNHTSA·22V114000·Announced 2024-04-02

Proterra buses recalled for loose steering gearbox securing bolts

Proterra is recalling 2017-2022 Catalyst and ZX5 buses because steering gearbox securing bolts may loosen due to insufficient adhesive, risking loss of steering control. Owner notifications were sent October 7, 2022.

What this means for you

Real risk of harm even if no illness or injury has been reported yet. Stop using the product and follow the agency's guidance.

Our severity reasoning: Structural vehicle defect affecting steering control without reported injuries or deaths. Loss of steering control is a high-risk failure mode; however, the rubric caps theoretical hazards at High severity.

Plain-English summary

Proterra, Inc. is recalling certain 2017-2022 Catalyst and ZX5 buses. The plexus adhesive securing the torque limiter plate to the bus body may be insufficient, causing the bolts that secure the steering gearbox to loosen. A loose steering gearbox can cause loss of steering control, increasing the risk of a crash.

The recall affects 724 buses with various configurations, including 35-foot and 40-foot models. Owner notification letters were mailed October 7, 2022.

Dealers will install mechanical fasteners, new bolts on the steering gearbox, and a new torque plate as necessary, free of charge. Owners should contact Proterra customer service at 1-864-438-0000 or the NHTSA Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153) for recall details and remedy scheduling.

The recalled product

Product
2022 PROTERRA CATALYST
Brand
PROTERRA
Manufacturer
Proterra, Inc.
Category
Vehicle — Transit Bus
Hazard
  • steering-failure
  • crash-risk
Affected units
724

Is your product affected?

Check your packaging against the codes below. If any of them match, the product is part of this recall.

Model numbers (2)

  • CATALYST
  • ZX5

Distribution

Distributed nationwide across the United States.

Related recalls

Same brand · PROTERRA

Same category