NHTSA vehicle safety data
2015 Proterra ZX5 Recalls, Ratings & Complaints
The 2015 Proterra ZX5 has 1 NHTSA recall campaign and 0 owner complaints on file as of October 16, 2026. Recall repairs are usually free at an authorized Proterra dealer.
NHTSA recall and complaint data for the 2015 Proterra ZX5. Recall data is refreshed daily from NHTSA.
STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
NHTSA #22V114000Reported February 28, 2022 · Proterra, Inc.
Potentially affected: 724 vehicles
Defect description
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.
Safety consequence
A loose steering gearbox can cause a loss of steering control, increasing the risk of a crash.
Manufacturer 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.
Other Proterra ZX5 model years
Check your 2015 Proterra ZX5 VIN
Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Proterra ZX5 at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.
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