Proterra Catalyst, model years 2016 to 2018. Filed by Proterra Inc. and reported to NHTSA on 29 January 2019. 55 vehicles potentially affected.
What the notice says 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 …
Is your vehicle included? Check with your VIN at NHTSA, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.
What owners ask about this recall
- Which vehicles does recall 19V061 cover?
- Proterra Catalyst, model years 2016-2018.
- What is wrong with them?
- 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.
- What can happen if it is not put right?
- Built-up of moisture in the air brake system may lead to brake failure, increasing the risk of crash.
- Is there a fix yet?
- Yes, and it is free. 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.
- What should I do now?
- Check your own vehicle by its VIN with NHTSA, which is the record to act on.
Answered from the register this site holds. NHTSA is the record to act on.
What the authority says can happen if this is not fixed: “Built-up of moisture in the air brake system may lead to brake failure, increasing the risk of crash.”
affected
in the notice
caught
| Campaign | 19V061 |
|---|---|
| Filed by | Proterra Inc. |
| System at fault | Service Brakes, Air:Supply:Reservoir/Tank |
| Reported to NHTSA | 29 January 2019 |
| Model years | 2016-2018 |
| Vehicles named | PROTERRA CATALYST |
What the notice says today
The consequence
Built-up of moisture in the air brake system may lead to brake failure, increasing the risk of crash.
The 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.
What it said before
This campaign is in the register but not yet in the dated wording archive, so we cannot yet say whether its text has moved. It enters the archive on the next pass.
This is one of 353 notices in the record whose component field names service brakes, air. Across that group the median wait before owners were written to was 43 days.
Last checked . No change has been recorded in the wording.
The models named here, across their whole recall history
How to cite this record
Quoting the wording on this page means quoting a version, so the date belongs in the citation:
CarsMultiverse, recall 19V061, wording as read on 16 September 2026. https://carsmultiverse.com/recall/19v061/
The cross-border matches used on this site are deposited as a citable dataset: doi:10.5281/zenodo.22087136. The recall wording itself is published by the national authority named above and is theirs, not ours.
The recall record and its wording are published by the US National Highway Traffic Safety Administration and are US Government public domain. The dated archive, the comparison and any before-and-after above are CarsMultiverse. How fresh every engine behind this page is, is public on the status page. To check a specific vehicle, use NHTSA’s own VIN lookup.
Other Proterra notices we hold
- 23V697: 2019-2022 40' and 35' Catalyst 800V transit buses equipped with ProDrive 1
- 23V078: 2020-2022 35" Catalyst, 35" ZX5, and 40" ZX5
- 22V887: 2017-2019 Catalyst transit buses
- 22V855: 2020-2021 Catalyst and 2019-2022 ZX5 transit buses
- 22V829: 2022 ZX5 transit buses
- 22V114: 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
- 22E065: battery packs, model number S1-15, with part numbers 129-6202, 139-6181, and 163-3642
- 22E052: High Voltage Junction Box (HVJB) DC Links, with part number 051071
All 20 Proterra campaigns we hold · Every manufacturer in the record
The fingerprint of this notice
We take a SHA-256 of each of the three blocks of text the authority publishes and keep the first eight characters. As we last read campaign 19V061 on 23 August 2026, they were:
- Defect summary
1e7d3348 - Consequence
002e63b0 - Remedy
58ef1496
We first read this notice on 21 August 2026. It has not moved since. If it ever does, these characters will not match, and the change will be dated here.
The wording we hold for 19V061 · how the whole register is watched
This notice names one vehicle among several registers that have written about it. Every notice this site holds for the Proterra Catalyst, in all seven, is kept on that vehicle's own page, with the newest in each.
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