# NHTSA recall 24V232000

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: 24V232000
- Manufacturer's number: SC0461
- Manufacturer: Mack Trucks, Inc.
- Reported: 2024\-03\-27
- Owners notified: 2024\-04\-10
- Component: ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS
- Units potentially affected: 106
- Part numbers: 20378934

## What is wrong

Mack Trucks, Inc. \(Mack\) is recalling certain 2024\-2025 LR natural gas vehicles.  The methane detector may be inoperative due to a missing fuse.


## What can happen

An inoperative methane detector can fail to detect a gas leak, increasing the risk of a fire or injury.


## The remedy

Dealers will install a fuse, free of charge.  Owner notification letters were mailed April 10, 2024.  Owners may contact Mack customer service at 1\-800\-866\-1177.  Mack's number for this recall is SC0461.


## Notes

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.


## Remedy progress the manufacturer reported

- Report: Quarterly report 8, for 2026 quarter 1
- Filed with NHTSA: 2026\-04\-15
- Vehicles in the campaign: 106
- Reported remedied: 81 \(76%\)
- Reported unreachable: 0
- Reported removed: 0

These are the manufacturer's totals for the whole campaign at the end of 2026 quarter 1, as filed with NHTSA. They do not say whether one vehicle has been remedied: check the VIN with the official lookups. The reports are from data as of 2026\-10\-19.

## Vehicles this campaign lists

- [2024 MACK LR](/makes/mack/lr/2024/recalls.md)
- [2025 MACK LR](/makes/mack/lr/2025/recalls.md)

## 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/24V232000](/v1/recalls/nhtsa/24V232000)

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