Hearth Record

Service brakes, air: disc: chamber (ZF North America)

Vehicle equipment recall 25E-027. NHTSA received Nova Bus (US) Inc.’s report on Apr 14, 2025.

NHTSA’s own record, on nhtsa.gov

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The short answer

NHTSA received Nova Bus (US) Inc.’s report on Apr 14, 2025. Copied from NHTSA on Oct 20, 2026.

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

What’s wrong with it?

A brake chamber air leak may cause the brakes to engage unexpectedly, which can overheat the brakes and increase the risk of a fire. Additionally, unexpected braking can increase the risk of a crash.

Nova Bus (US) Inc.

(Nova Bus) is recalling certain ZF North America Knorr-Bresme 20/22-57 brake chambers, with part number K038830N00, sold as replacement parts for certain buses.

The brake chamber may have been improperly manufactured, which can result in an air leak.

Source:

NHTSA, Recalls flat file. Released Oct 20, 2026. Updated daily.

  • NHTSA’s part: Service brakes, air: disc: chamber.

What should you do?

Nova Bus will replace the brake chambers, free of charge. Owner notification letters were mailed August 21, 2025. Owners may contact Nova Bus customer service at 1-450-472-6410. Nova Bus’s number for this recall is CR5720.

Source:

NHTSA, Recalls flat file. Released Oct 20, 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- 888-275-9171), or go to www.safercar.gov.

Which ones are recalled?

NHTSA counts 2,090 items potentially involved, across everything this recall names.

  • Part no. K038830N00​
Source:

NHTSA, Recalls flat file. Released Oct 20, 2026. Updated daily.

  • ZF North America Brake ChamberNHTSA gives no dates made

Who is recalling it?

  • Made by Nova Bus (US) Inc..
Source:

NHTSA, Recalls flat file. Released Oct 20, 2026. Updated daily.

What the record doesn’t say

  • NHTSA’s recall file doesn’t say whether anyone was hurt.
  • Which ones, by part or lot: the recall’s report on NHTSA’s site gives them where the maker did; this file gives part numbers only where its maker listed them.
  • 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 20, 2026 and checked Oct 20, 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 20, 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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