Defect: Proterra Operating Company, Inc. (Proterra) is recalling certain 2019-2022 40' and 35' Catalyst 800V transit buses equipped with ProDrive 1.0, and 40' and 35' ZX5 800V transit buses equipped with ProDrive 1.0. A transistor inside the inverter may overheat and fail, which can result in a loss of power steering and drive power.
Consequence: A loss of power steering and/or drive power increases the risk of a crash.
Remedy: Dealers will replace the inverter, free of charge. Owner notification letters were mailed December 16, 2023. Owners may contact Proterra customer service at 1-864-438-0000.
Defect: 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.
Remedy: 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.
Defect: 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.
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.
Do not drive: No. Park outside: No.
Investigations
0 investigations; 0 open.
Manufacturer communications
65 manufacturer communications.
Communications by system
System
Count
ELECTRICAL SYSTEM
23
STRUCTURE
19
POWER TRAIN
10
SERVICE BRAKES
10
FUEL/PROPULSION SYSTEM
5
SUSPENSION
3
ENGINE
2
EXTERIOR LIGHTING
2
11006603
Date: 2024-05-16. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM, ENGINE, ENGINE AND ENGINE COOLING.
Software update for the 800vRRs Vehicle and Body Software to reduce the radiator fan current draw to 80%. Additionally corrects a bug to properly route ESM faults away from the coolant light icon.
11009063
Date: 2023-12-11. Type: Service Bulletin/Repair Instructions. Systems: SERVICE BRAKES, SUSPENSION.
Relocation of the air compressors intake as well as adding a preliminary filter at the top of the air intake.
11007754
Date: 2023-10-14. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM, POWER TRAIN.
This procedure describes the process for updating the 800VvRR DuoPower Vehicle, Powertrain, Body Controller, ESM and Charge Controller software to BuSCoM 2.0.
11011235
Date: 2023-10-04. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.
Service Bulletin for Transit Vehicles to reduce the gearboxes PMI interval due to failing filters.
11012920
Date: 2023-10-02. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
Repair instruction to inspect heavy duty transit vehicles for humidity in the battery pack and perform preventative maintenance.
11010912
Date: 2023-08-08. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
Bulletin instructions for rotating the ambient temp sensor 180deg on transit buses to reduce road debris from accumulating on the temp sensor.
11009072
Date: 2023-07-18. Type: Service Bulletin/Repair Instructions. Systems: FUEL/PROPULSION SYSTEM.
Replaces DuoPower Drive Motor when a failure occurs on the streetside electric motor.
11008991
Date: 2023-06-02. Type: Service Bulletin/Repair Instructions. Systems: STRUCTURE.
The procedure describes the process of replacing the overhead bracket and brackets between hat bracket overhead to a more robust design.
11007829
Date: 2023-06-01. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.
The procedure describes the process of updating the gearboxes from a dual turn to a single turn snap ring on Duopower buses.
11007833
Date: 2023-05-24. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM, ENGINE, FUEL/PROPULSION SYSTEM, POWER TRAIN, SERVICE BRAKES.
This procedure describes the process for updating the 800V DuoPower Body, Vehicle and Powertrain Controllers software to the latest version.
Notes on this record
Complaints from the API and bulk file are merged and deduplicated by ODI number; the API alone misses records.
System and subsystem counts are numbers of distinct complaints, recalls or communications that name them. One record can name several systems, so shares across systems can add to more than 100 percent; a single share never exceeds 100 percent.
Recalls are counted once per campaign, investigations once per action and manufacturer communications once per NHTSA id, even when NHTSA lists several model names for the same record.
A sales denominator is a calendar-year proxy, not the population of vehicles still in use. Rates are copied from verified pipeline output.
NHTSA's complaints API and bulk file list no complaint for this make, model and model year in this data build.