# NHTSA recall 01V189004

A recall listed here may apply to a vehicle of this year, make and model. Only the manufacturer can say whether it applies to one vehicle: check the VIN with the official lookups.

- Published by: NHTSA \(United States\)
- Campaign number: 01V189004
- Manufacturer: MACK TRUCKS, INCORPORATED
- Reported: 2001\-08\-01
- Owners notified: 2001\-11\-16
- Component: SERVICE BRAKES, AIR:CONTROLS, PEDALS AND LINKAGES
- Units potentially affected: 8268

## What is wrong

VEHICLE DESCRIPTION:   HEAVY DUTY TRUCKS EQUIPPED WITH CERTAIN MERITOR\-WABCO BRAKE SYSTEM TWO AND FOUR PORT RELAY VALVES.  THE VALVE MAY STICK OPEN WHEN A HIGH\-PRESSURE APPLICATION IS RELEASED.


## What can happen

WHEN THE VALVE STICKS OPEN, IT CAN RESULT IN A TOTAL LOSS OF AIR FROM EITHER THE SERVICE OR THE PARK BRAKE SYSTEM.  THE DRIVER MAY LOSE BRAKING ABILITY UNDER A SERVICE APPLICATION, POSSIBLY RESULTING IN A VEHICLE CRASH.


## The remedy

DEALERS WILL REPLACE THESE VALVES.   OWNER NOTIFICATION BEGAN NOVEMBER 16, 2001.   OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MACK AT 1\-610\-709\-3011 OR MERITOR WABCO AT 800\-535\-5560.


## Notes

ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1\-888\-DASH\-2\-DOT \(1\-888\-327\-4236\).


## Vehicles this campaign lists

- [2000 MACK CH](/makes/mack/ch/2000/recalls.md). Built 2000\-09\-19 to 2001\-03\-30.
- [2001 MACK CH](/makes/mack/ch/2001/recalls.md). Built 2000\-09\-19 to 2001\-03\-30.
- [2000 MACK CL](/makes/mack/cl/2000/recalls.md). Built 2000\-09\-19 to 2001\-03\-30.
- [2001 MACK CL](/makes/mack/cl/2001/recalls.md). Built 2000\-09\-19 to 2001\-03\-30.
- 2000 MACK CV. Built 2000\-09\-19 to 2001\-03\-30.
- 2001 MACK CV. Built 2000\-09\-19 to 2001\-03\-30.
- 2000 MACK CX. Built 2000\-09\-19 to 2001\-03\-30.
- 2001 MACK CX. Built 2000\-09\-19 to 2001\-03\-30.
- [2000 MACK DM](/makes/mack/dm/2000/recalls.md). Built 2000\-09\-19 to 2001\-03\-30.
- [2001 MACK DM](/makes/mack/dm/2001/recalls.md). Built 2000\-09\-19 to 2001\-03\-30.
- [2000 MACK DMM](/makes/mack/dmm/2000/recalls.md). Built 2000\-09\-19 to 2001\-03\-30.
- [2001 MACK DMM](/makes/mack/dmm/2001/recalls.md). Built 2000\-09\-19 to 2001\-03\-30.
- [2000 MACK MR](/makes/mack/mr/2000/recalls.md). Built 2000\-09\-19 to 2001\-03\-30.
- [2001 MACK MR](/makes/mack/mr/2001/recalls.md). Built 2000\-09\-19 to 2001\-03\-30.
- [2000 MACK RB](/makes/mack/rb/2000/recalls.md). Built 2000\-09\-19 to 2001\-03\-30.
- [2001 MACK RB](/makes/mack/rb/2001/recalls.md). Built 2000\-09\-19 to 2001\-03\-30.
- [2000 MACK RD](/makes/mack/rd/2000/recalls.md). Built 2000\-09\-19 to 2001\-03\-30.
- [2001 MACK RD](/makes/mack/rd/2001/recalls.md). Built 2000\-09\-19 to 2001\-03\-30.

## Bulletins for the same vehicles and component

A bulletin is the manufacturer's note to its dealers. It is not part of this recall.

- [CBR 407 072025](/bulletins/11021333.md), 2025-08-04, Service bulletin
- [CBR\-407 202409](/bulletins/11008366.md), 2024-10-03, Service bulletin

## Check a VIN

- [NHTSA recall lookup by VIN, United States](https://www.nhtsa.gov/recalls)
- [Transport Canada recall search, Canada](https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng)

JSON: [/v1/recalls/nhtsa/01V189004](/v1/recalls/nhtsa/01V189004)

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