How many recall campaigns are listed for the 2021 Proterra Catalyst?

5 campaign records are listed in this dataset for this make, model, and model year.

Does this page confirm that my vehicle is affected?

No. This model-level record is not a VIN lookup and does not determine vehicle eligibility or repair status. Check official NHTSA resources for the vehicle identification number.

Where do the campaign summaries come from?

The summaries and related details are shown from public NHTSA recall records. The local dataset was retrieved 2026-11-01.

Vehicle recall record

2021 Proterra Catalyst

5 recall campaigns · 2022–2024 · 0 with a do-not-park-indoors warning

Campaigns: 5
First notice: 2022-02-28
Latest notice: 2024-09-06
Same-make model-year average: 5.0

Risk markers carried in the record

No park-it or park-outside warning is flagged in this vehicle's collected record. This does not establish that the vehicle is defect-free or that every notice is included.

The markers above summarize fields available in this dataset. A missing marker is not a safety finding. Recall status and remedy eligibility can depend on vehicle identification number, equipment, production date, and whether a repair has already been completed.

Recall distribution by component

4 component categories

Counts and shares use the vehicle-level recall records shown below. The horizontal bar is scaled to the largest category on this page.
Component	Campaigns	Share
ELECTRICAL SYSTEM	2	40.0%
STEERING	1	20.0%
PARKING BRAKE	1	20.0%
VISIBILITY	1	20.0%

Component labels follow the source record's component field. Where the source includes a more detailed subcomponent after a colon, this distribution groups the record under the first component segment. Shares are calculated against 5 campaigns and rounded to one decimal place, so displayed percentages may not sum to exactly 100 percent.

Recall dates by calendar year

3 calendar years

These are recall notice dates, not vehicle model years.
Calendar year	Campaigns	Relative volume
2022	2
2023	2
2024	1

The timeline groups campaign records by their reported recall date. This explains why the date range (2022–2024) can begin before or end after model year 2021. The underlying vehicle may be covered by notices issued in several different calendar years.

Recall campaign details

5 vehicle-level records

Campaign summaries, consequences, and remedies are preserved from the collected NHTSA source text.
Campaign	Date	Component	Summary and source details	Flags
24V655000	2024-09-06	ELECTRICAL SYSTEM	Phoenix Motorcars (Phoenix) is recalling certain 2019-2021 800V Catalyst and 2020-2022 ZX5 transit buses. The vehicle controller software may allow the electrical circuit for the radiator fan to overheat. Read the complete source text Summary Phoenix Motorcars (Phoenix) is recalling certain 2019-2021 800V Catalyst and 2020-2022 ZX5 transit buses. The vehicle controller software may allow the electrical circuit for the radiator fan to overheat. Consequence Electrical circuits that overheat increase the risk of a fire. Remedy Dealers will update the vehicle software, free of charge. Owner notification letters were mailed October 15, 2024. Owners may contact Phoenix customer service at 1-909-987-0815.	No listed flag
23V697000	2023-10-17	ELECTRICAL SYSTEM	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.… Read the complete source text Summary 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.	No listed flag
23V078000	2023-02-13	VISIBILITY:WINDSHIELD WIPER/WASHER:MOTOR	Proterra Operating Company, Inc. (Proterra) is recalling certain 2020-2022 35" Catalyst, 35" ZX5, and 40" ZX5 vehicles. The windshield wiper motors may operate intermittently or may fail to operate. As such,… Read the complete source text Summary Proterra Operating Company, Inc. (Proterra) is recalling certain 2020-2022 35" Catalyst, 35" ZX5, and 40" ZX5 vehicles. The windshield wiper motors may operate intermittently or may fail to operate. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 104, "Windshield Wiping and Washing Systems." Consequence Inoperative windshield wipers can reduce visibility in certain driving conditions, increasing the risk of a crash. Remedy Dealers will replace the wiper motors, free of charge. Owner notification letters were mailed April 3, 2023. Owners may contact Proterra customer service at 1-864-438-0000.	No listed flag
22V855000	2022-11-18	PARKING BRAKE	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 bra… Read the complete source text Summary 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.	No listed flag
22V114000	2022-02-28	STEERING:GEAR BOX (OTHER THAN RACK AND PINION)	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 plexu… Read the complete source text Summary 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.	No listed flag

Each row represents a campaign listed for this make, model, and model year. A campaign can also cover other vehicles. The excerpt above is a direct beginning of the source summary; expand a row to read the complete summary and any consequence or remedy text included in the local record.

How 2021 Proterra Catalyst compares within Proterra

1 listed 2021 model-year records

Other collected Proterra records for model year 2021.
Vehicle	Campaigns	Date range
No other Proterra model-year record is present in this dataset.

This comparison is calculated from vehicle records for the same make and model year in this snapshot. It is a simple arithmetic average, not an industry benchmark. A model may appear under more than one configuration in the source data, and campaign counts do not indicate the probability that a specific vehicle has an unresolved defect.

Data source and interpretation

NHTSA Office of Defects Investigation, retrieved 2026-11-01. Recall records reflect manufacturer reports submitted to NHTSA. Absence of a recall here does not mean a vehicle is defect-free.

This page reports 5 campaign records, groups them into 4 component categories, and places the notice dates into these calendar years: 2022: 2; 2023: 2; 2024: 1. These are derived views of the supplied records, not additional findings from NHTSA.

The collection includes model-year records with one or more recalls. It is not a complete vehicle history, VIN eligibility result, repair-status check, safety rating, or guarantee that the source has no later updates. Confirm current campaign details and vehicle applicability with official NHTSA information and the manufacturer.