- Component
- STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
- Problem
- Proterra, Inc. (Proterra) is recalling certain 2017-2019 35 foot Catalyst E2, 2017-2019 40 foot E2, 2020-2021 35 foot RR, 2019-2020 40 foot RR, 2019-2022 40 foot ZX5, and 2020-2022 35 foot ZX5 buses. The plexus adhesive between the torque limiter plate and the bus body may be insufficient, causing the bolts that secure the steering gearbox to loosen.
- Risk
- A loose steering gearbox can cause a loss of steering control, increasing the risk of a crash.
- Remedy
- Dealers will install a mechanical fastener and new bolts on the steering gearbox, and install a new torque plate, as necessary, free of charge. Owner notification letters were mailed October 7, 2022. Owners may contact Proterra's customer service at 1-864-438-0000.
- 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.
What this recall means for you
The steering gearbox bolts may loosen because the adhesive bonding the torque limiter plate to the bus body may be insufficient. A loose steering gearbox can cause a loss of steering control and increase the risk of a crash.
An authorized dealer will install a mechanical fastener and new bolts on the steering gearbox and install a new torque plate, as necessary, at no cost to the owner. Owner notification letters were mailed October 7, 2022. Owners with questions can contact Proterra customer service at 1-864-438-0000, and should check their vehicle identification number (VIN) for open recalls.
Check whether this recall is open on your vehicle
Official recall notice
Affected vehicles
| Proterra Catalyst | 20152016201720182019202020212022 |
|---|---|
| Proterra ZX5 | 201520162019202020212022 |