Hearth Record

Service brakes, air: supply (Wabco)

Vehicle equipment recall 01E-020-001. NHTSA received MERITOR WABCO’s report on May 22, 2001.

NHTSA’s own record, on nhtsa.gov

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The short answer

NHTSA received MERITOR WABCO’s report on May 22, 2001. 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?

THE DRIVER MAY LOSE BRAKING ABILITY UNDER A SERVICE APPLICATION, POSSIBLY RESULTING IN A VEHICLE CRASH.

EQUIPMENT DESCRIPTION: TWO AND FOUR PORT RELAY VALVES MANUFACTURED BETWEEN SEPTEMBER 19, 2000, AND FEBRUARY 10, 2001.

THESE VALVES ARE USED TO CONTROL EITHER THE SERVICE BRAKE SYSTEM OR PARK BRAKE SYSTEMS ON TRACTORS, TRUCKS, AND TRAILERS.

THE VALVE MAY STICK OPEN WHEN A HIGH- PRESSURE APPLICATION IS RELEASED.

THESE VALVES CAN BE IDENTIFIED WITH A DATE CODE ON THE VALVE OF 380K, 390K, 400K, 410K, 420K, 430K, 440K, 450K, 460K, 470K, 480K, 490K, 500K, 510K, 520K, 011K, 021K, 031K, 041K, 051K, OR 061K, AND ARE DARK GREEN IN COLOR.

WHEN THE VALVE STICKS OPEN, IT CAN RESULT IN A TOTAL LOSS OF AIR FROM EITHER THE SERVICE OR THE PARK BRAKE SYSTEM.

Source:

NHTSA, Recalls flat file before 2010. Released Oct 20, 2026. Updated daily.

  • NHTSA’s part: Service brakes, air: supply.

What should you do?

MERITOR WABCO WILL CONTACT THE AFFECTED VEHICLE MANUFACTURERS AND REQUEST THAT THEY NOTIFY VEHICLE OWNERS TO HAVE THE AFFECTED RELAY VALVES REPLACED OR REBUILT FREE OF CHARGE.

Source:

NHTSA, Recalls flat file before 2010. Released Oct 20, 2026. Updated daily.

  • How to reach the firm: OEM’S WERE NOTIFIED .OWNER NOTIFICATION BEGAN JULY 2, 2001.IF YOU TAKE YOUR VEHICLE TO AN AUTHORIZED DEALER AT THE AGREED UPON SERVICE AND DO NOT RECEIVE THE REMEDY WITHIN A REASONABLE TIME, YOU SHOULD CONTACT MERITOR WABCO AT 800-535-5560.ALSO, YOU MAYCONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION’S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).

Which ones are recalled?

NHTSA counts 12,700 items potentially involved, across everything this recall names.

Source:

NHTSA, Recalls flat file before 2010. Released Oct 20, 2026. Updated daily.

  • Wabco Park Brake Relay ValveBuilt from Sep 19, 2000 to Feb 10, 2001

Who is recalling it?

  • Made by MERITOR WABCO.
Source:

NHTSA, Recalls flat file before 2010. 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

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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