Hearth Record

Parking brake (Proterra)

Vehicle recall 22V-855. NHTSA received Proterra Operating Company, Inc.’s report on Nov 18, 2022.

NHTSA’s own record, on nhtsa.gov

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The short answer

NHTSA received Proterra Operating Company, Inc.’s report on Nov 18, 2022. Copied from NHTSA on Oct 28, 2026.

Every line below is in NHTSA’s own words, with its source beside it.

What’s wrong with it?

Unintentional engagement of the parking brake increases the risk of a crash.

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.

Source:

NHTSA, Recalls flat file. Released Oct 28, 2026. Updated daily.

  • NHTSA’s part: Parking brake.

What should you do?

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.

Source:

NHTSA, Recalls flat file. Released Oct 28, 2026. Updated daily.

  • How to reach the firm: Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
  • Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.

Which ones are recalled?

NHTSA counts 386 vehicles potentially involved, across everything this recall names.

Each model year opens its own page: every recall naming it, its owner complaints and its crash ratings.

Source:

NHTSA, Recalls flat file. Released Oct 28, 2026. Updated daily.

Who is recalling it?

  • Made by Proterra Operating Company, Inc..
Source:

NHTSA, Recalls flat file. Released Oct 28, 2026. Updated daily.

What the record doesn’t say

  • NHTSA’s recall file doesn’t say whether anyone was hurt. Owners’ complaints are counted on each vehicle’s page.
  • Whether one vehicle or seat has been fixed: only its maker, or NHTSA’s lookup with a VIN, can say.
  • How many have been returned or fixed isn’t in the notice.
Source:

Hearth Record wrote these lines.

Sources

  • National Highway Traffic Safety Administration, Recalls flat file (FLAT_RCL_POST_2010).

    Released Oct 28, 2026 and checked Oct 28, 2026. Updated daily. Public domain (U.S. Government work).

Source:

Vehicle, car seat, tire and vehicle equipment recalls, owner complaints and crash ratings are from the National Highway Traffic Safety Administration (NHTSA). Copied on Oct 28, 2026.

How to read a record

Four things every record does, shown on an example record made up for this guide.

An example record, made up for this guide

An example nursing home

Made up for this guide: no real place is shown

Not fully inspected in over two years (CMS flag)

11 health citations at the latest inspection cycle

The state average is 14.3.

Source:

CMS, State and US Averages and Health Deficiencies. Released Oct 28, 2026. Updated monthly.

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Every fact names its source.

Who published it, when, and how often it changes sit beside each fact, with a link to the agency’s own file.

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