Recalls
Proterra Operation Company, Inc. (Proterra) is recalling certain 2017-2019 Catalyst transit buses. One or more battery packs may allow liquid to leak into and accumulate in the battery pack enclosure.
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.
Proterra, Inc. (Proterra) is recalling certain 2017-2018 Catalyst buses. The vehicles are equipped with swivel valves that may insufficiently protect the air brake system from an air leak between the service reservoir and the source of air pressure. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems."
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, possibly resulting in a build up of air pressure in the rear brake system.
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.
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 Safety Standard (FMVSS) number 121, "Air Brake Systems."
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."
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.
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What Proterra told its dealers about the 2017 Proterra Catalyst: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 11011320 | Service Bulletin for an alternative coolant temp sensor for transit buses as the original sensor installed is challenging to purchase due to supply constraints. |
| 11011233 | Repair instructions to support transit buses when a charge shunt fails. If the installed charge shunt were to fail we can replace with the original shunt installed, therefore this instruction set provides documentation for installing an alternative. |
| 11010998 | Service Bulletin for upgraded battery fans on select heavy duty electric buses. Moving to brushless fans to extend the service life of the fans. |
| 11010653 | Repair instructions for ADA ramp brackets that have come debonded due to water intrusion. |
| 11010425 | Bulletin to add shim under the steering TLP due to build variances of the bodies and bond gaps. |
| 10181013 | This procedure is a updates the rooftop battery thermal management system unit brackets to a more robust design. |
| 10179591 | This retrofit changes the traction motor inverter enable signal from 12 to 24 volts to improve reliability. |
| 10178211 | This retrofit removes an unnecessary bleed line in the coolant system that may lead to air entrapment and reduced efficiency of the cooling system. |
| 10178209 | This retrofit adds reflective tape to the front of the bus to comply with California state regulations. |
| 10168950 | This campaign updates the Grayson battery thermal management system to the latest version for improved performance. |
| 10164633 | The reason for this software update is to update various controllers. All the included Proterra Catalyst E2 vehicles require a change to the software/configuration for the following items: Battery Pack Software, Charge Controller, ESM Software, Powertrain Controller, DWP/Dash Software, and Body Controller (ZR) |
| 10163631 | 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. |
| 10163629 | A software error was causing a false state of charge calculation, shutting off the DC to DC converter, causing the low voltage batteries to lose charge. Loss of power to the low voltage battery could cause ancillary systems in the vehicle to turn off. Proterra issued this service bulletin to update the software that will make SOC calculations more accurate and prevent loss of power to the low voltage system. |
| 10163628 | 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 disconnected, possibly causing a hazard on the road. Proterra issued the service bulletin to replace the clamshell brackets and latches with an improved design. |
| 10160526 | This procedure provides improved grounding for the HVAC unit. |
| 10160522 | This procedure will replace current Air Compressor and Power Steering Variable Frequency Drive EMI Filter with one of more robust design. |
| 10158603 | This Technical Service Bulletin updates the software/configuration on the Catalyst E2 Vehicle controllers including the CCS Charger Controller, Dash, Powertrain Controller, Body Controller, and ESM. The bulletins referenced in SC-19-35's notice lines are the previous versions of the software that need to be installed before the new software is loaded on to the buses. |
| 10158602 | This Technical Service Bulletin updates the vehicle Magnetek. This change will bring the vehicle up to the latest version of Magnetek software and improve charging performance by adding functionality for buses used at multi-charge station sites and other functional updates. |
| 10154939 | 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. |
| 10154937 | Technical Service Bulletin Catalyst 40 FC Vehicle Software Update was issued to update the CCS Charger Controller, Drivers Work Place Controller, Powertrain Controller, Body Controller (ZR), and BMC Software to expand the max number of vehicles that can dock on the Proterra overhead charging system. |
NHTSA manufacturer communications (public domain)
NHTSA investigations
Remedy Effectiveness of Recall 22V887
NHTSA Office of Defects Investigation