4 recalls found. |
DEFECT #1 - STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
Posted on: 2022-03-01
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.
Consequence
A loose steering gearbox can cause a loss of steering control, increasing the risk of a crash.
Corrective Action
Dealers will install a mechanical fastener and new bolts on the steering gearbox, and install a new torque plate, as necessary, free of charge. Proterra issued owners an interim notification on april 8, 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.
DEFECT #2 - STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
Posted on: 2022-03-01
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.
Consequence
A loose steering gearbox can cause a loss of steering control, increasing the risk of a crash.
Corrective Action
Dealers will install a mechanical fastener and new bolts on the steering gearbox, and install a new torque plate, as necessary, free of charge. Proterra issued owners an interim notification on april 8, 2022. Remedy parts are expected to be available in october 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.
DEFECT #3 - PARKING BRAKE
Posted on: 2022-11-21
Description
Proterra operating company, inc. (proterra) is recalling certain 2020-2021 catalyst and 2019-2022 zx5 transit buses. Back pressure in the shared air exhaust for the pneumatic ride height system and parking brake control valve may engage the parking brake while the vehicle is in motion.
Consequence
Unintentional engagement of the parking brake increases the risk of a crash.
Corrective Action
Proterra will install a redesigned air circuit, free of charge. Owner notification letters are expected to be mailed on december 12, 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.
DEFECT #4 - PARKING BRAKE
Posted on: 2022-11-21
Description
Proterra operating company, inc. (proterra) is recalling certain 2020-2021 catalyst and 2019-2022 zx5 transit buses. Back pressure in the shared air exhaust for the pneumatic ride height system and parking brake control valve may engage the parking brake while the vehicle is in motion.
Consequence
Unintentional engagement of the parking brake increases the risk of a crash.
Corrective Action
Proterra will install a redesigned air circuit, free of charge. Owner notification letters were mailed on december 21, 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.