# NHTSA recall 03V253000

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: 03V253000
- Manufacturer's number: SC0281
- Manufacturer: MACK TRUCKS, INCORPORATED
- Reported: 2003\-07\-17
- Owners notified: 2003\-11\-26
- Component: SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
- Units potentially affected: 1232

## What is wrong

CERTAIN HEAVY DUTY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS."  IMPROPER SEATING OF THE CHECK VALVE RETAINER IN THE BRASS FITTING HOUSING HAS OCCURRED.  IT IS POSSIBLE FOR THE AIR BRAKE SYSTEM PRESSURE TO PUSH THE CHECK VALVE INTERNAL PARTS INTO THE PRIMARY SYSTEM RESERVOIR AND A VEHICLE OPERATOR WOULD NOT KNOW THAT THIS HAS HAPPENED.


## What can happen

IN THIS CONDITION, THE VEHICLE WOULD NOT MEET THE EMERGENCY REQUIREMENTS OF THE STANDARD.


## The remedy

DEALERS WILL REPLACE THE CHECK VALVE.  OWNER NOTIFICATION BEGAN NOVEMBER 26, 2003.  OWNERS SHOULD CONTACT MACK AT 1\-610\-709\-3337.


## Notes

MACK RECALL NO. SC0281.CUSTOMERS CAN 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

- [2003 MACK CH](/makes/mack/ch/2003/recalls.md). Built 2003\-05\-19 to 2003\-06\-20.
- [2003 MACK CL](/makes/mack/cl/2003/recalls.md). Built 2003\-05\-19 to 2003\-07\-11.
- 2003 MACK CV. Built 2003\-05\-19 to 2003\-07\-11.
- 2003 MACK CX. Built 2003\-05\-19 to 2003\-06\-20.
- 2003 MACK DM6. Built 2003\-05\-19 to 2003\-07\-11.
- [2003 MACK DMM](/makes/mack/dmm/2003/recalls.md). Built 2003\-05\-19 to 2003\-07\-11.
- [2003 MACK LE](/makes/mack/le/2003/recalls.md). Built 2003\-05\-19 to 2003\-07\-11.
- [2003 MACK MR](/makes/mack/mr/2003/recalls.md). Built 2003\-05\-19 to 2003\-07\-11.
- 2003 MACK RD6. Built 2003\-05\-19 to 2003\-07\-11.
- 2003 MACK RD8. Built 2003\-05\-19 to 2003\-07\-11.

## 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
- [KC\-593](/bulletins/10210987.md), 2022-05-05, 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/03V253000](/v1/recalls/nhtsa/03V253000)

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