2016 PROTERRA CATALYST
6 recalls, 0 complaints - 5 TSBs
22V114000 Feb 28, 2022
STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
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 ... Read more
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.
19V283000 Apr 9, 2019
SERVICE BRAKES
Defect Description
Proterra, Inc. (Proterra) is recalling certain 2015-2018 Catalyst 40 buses equipped with an optional tow fitting and airline that allows a tow truck to operate the rear brakes on the vehicle. The mesh cap covering the airline for the tow fitting can be clogged with road debris in inclement weather,... Read more
Consequence
A build up of air pressure can cause the brakes to drag and possibly overheat, increasing the risk of fire.
Remedy
Proterra will notify owners, and dealers will install an additional shield to the tow fitting that protects the mesh cap, free of charge. The recall began June 4, 2019. Owners may contact Proterra customer service at 1-864-438-0000.
19V062000 Jan 30, 2019
SUSPENSION:FRONT
Defect Description
Proterra Inc., (Proterra) is recalling certain 2015-2018 Catalyst 40 and 35 transit buses. The affected vehicles are equipped with a four point height control system that may cause a load imbalance, overloading the front tires.
Consequence
An overloaded front tire may fail unexpectedly, increasing the risk of crash.
Remedy
Proterra will notify owners, and dealers will convert the current four point ride height system into a three point system to prevent the front tires from being overloaded, free of charge. The recall began March 26, 2019. Owners may contact Proterra customer service at 1-864-438-0000.
19V061000 Jan 29, 2019
SERVICE BRAKES, AIR:SUPPLY:RESERVOIR/TANK
Defect Description
Proterra Inc., (Proterra) is recalling certain 2015-2018 Catalyst 40 transit buses. The affected vehicles lack a Graham White air brake supply reservoir, possibly resulting in long term moisture build up in the air brake system. As a result, these vehicles fail to comply with Federal Motor Vehicle ... Read more
Consequence
Built-up of moisture in the air brake system may lead to brake failure, increasing the risk of crash.
Remedy
Proterra will notify owners, and dealers will install a supply reservoir with a drain between the air dryer and the air supply manifold, free of charge. The recall is expected to begin March 28, 2019. Owners may contact Proterra customer service at 1-864-438-0000.
19V034000 Jan 16, 2019
EQUIPMENT:OTHER:LABELS
Defect Description
Proterra, Inc is recalling certain 2015-2018 Catalyst 40, and Catalyst 35 buses. The certification label may list an incorrect gross front axle weight rating and/or incorrect tire pressures. As such, these vehicles fail to comply with the requirements of 49 CFR Part 567, "Certification."
Consequence
If the tire pressure is understated, an underinflated tire may result in an increased risk of tire failure, increasing the risk of a crash.
Remedy
Proterra will notify owners, and dealers will replace the certification labels with correct information for all affected customers, free of charge. The recall began March 12, 2019. Owners may contact Proterra customer service at 1-864-438-0000.
18V750000 Oct 23, 2018
SERVICE BRAKES, AIR:DISC:CALIPER
Defect Description
Proterra is recalling certain 2016-2017 Proterra Catalyst 40 transit buses equipped with axles with radial air disk brakes. Surface roughness of a guide pin in the radial brake calipers may cause the brake carriage guide pin support bolt to break.
Consequence
Breakage of the guide pin can cause loss of braking ability or loss of tire pressure, increasing the risk of a crash.
Remedy
Proterra will notify owners and have them replace the calipers on the affected axles, free of charge. Owners may contact Proterra customer service at 1-864-438-0000.
No complaints found for this vehicle.
Technical Service Bulletins, 2016 PROTERRA CATALYST
5 manufacturer communications from 4 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.
Most Affected Components
| Component | Bulletins |
|---|---|
| 118000 ELECTRICAL SYSTEM:SOFTWARE | 1 |
| 020000 SUSPENSION | 1 |
| 160000 STRUCTURE | 1 |
| 170000 LATCHES/LOCKS/LINKAGES | 1 |
| 110000 ELECTRICAL SYSTEM | 1 |
SC-19-72
Jul 10, 2019
160000 STRUCTURE
The brackets and latches on 40ft Catalyst buses holding the lid on the clamshell covering rooftop components can come loose, possibly causing the lid to open. An open lid on a moving vehicle could become damaged or in an extreme case discon
SC-19-72
Jul 10, 2019
170000 LATCHES/LOCKS/LINKAGES
The brackets and latches on 40ft Catalyst buses holding the lid on the clamshell covering rooftop components can come loose, possibly causing the lid to open. An open lid on a moving vehicle could become damaged or in an extreme case discon
SC-19-84
Jul 10, 2019
110000 ELECTRICAL SYSTEM
Pin placement in the dash DMUXK connector was incorrect and caused the ICAN network to be improperly terminated. Proterra issued this service bulletin to relocate the pin to properly terminate the ICAN network.
SB-18-74
Feb 14, 2019
020000 SUSPENSION
Technical Service Bulletin Front Axle Control Arm Retrofit (RL75EC to RL82EC) was issued to replace the Control Arms on the front axle to allow a higher front axle weight.
SB-19-07
Feb 4, 2019
118000 ELECTRICAL SYSTEM:SOFTWARE
Technical Service Bulletin Catalyst 40 FC Vehicle Software Update was issued to update the BMC Software to expand the max number of vehicles that can dock on the Proterra overhead charging system.
NHTSA Safety Investigations, PROTERRA CATALYST
Investigations opened by NHTSA into potential safety defects. These are separate from recalls and may or may not result in a recall.
RQ25001
Opened: Jun 27, 2025
Remedy Effectiveness of Recall 22V887
In November 2022, Proterra Operating Company, Inc. (Proterra) filed a safety recall (NHTSA recall 22V887) covering nineteen 2017-2019 Proterra Catalyst transit buses to address the potential of liquid accumulation in the 400-volt battery packs, increasing the risk of a fire. On December 16, 2022, Pr... Read more
PROTERRA CATALYST - All Years Overview
Complete safety history for the PROTERRA CATALYST across all model years (2015, 2022).
52
Total Recalls
1
Total Complaints
1
Investigations
0
Reported Crashes
0
Reported Fires
0
Reported Deaths