Mack 2024-2025 LR Natural Gas Vehicles: Electrical System Recall
Mack recalls certain 2024-2025 LR natural gas vehicles due to a potential methane detector failure that could lead to fire or injury. Owners should contact Mack customer service for free fuse installation.
Use caution until it’s fixed
An inoperative methane detector can fail to detect a gas leak, increasing the risk of a fire or injury.
What happened, in plain English
Mack is recalling specific 2024-2025 LR natural gas trucks because a missing fuse might cause the methane detector to fail, increasing fire or injury risk. Affected owners should get the free fuse fix from a dealer. Read more at govinfonow.com/recall/1342258-mack-2024-2025-lr-natural-gas-vehicles-electrical-system-recall.
Source Summary by GovInfoNow · govinfonow.com/recall/1342258-mack-2024-2025-lr-natural-gas-vehicles-electrical-system-recall · Updated October 8, 2026 · Official notice: NHTSA #24V232000
Cite this page
“Mack 2024-2025 LR Natural Gas Vehicles: Electrical System Recall.” GovInfoNow, updated October 8, 2026. https://govinfonow.com/recall/1342258-mack-2024-2025-lr-natural-gas-vehicles-electrical-system-recall. Based on NHTSA recall #24V232000 (https://www.nhtsa.gov/recalls?nhtsaId=24V232000).
Why it’s dangerous
The methane detector may not work properly because a fuse is missing. This could allow gas leaks to go undetected, leading to fire or injury if the leak is not noticed.
Who’s affected
Owners of 2024-2025 Mack LR natural gas vehicles are affected. Drivers using these trucks for commercial transport face the highest risk due to potential gas leaks.
How to tell if you have this one
Check if your truck is a 2024-2025 Mack LR natural gas vehicle. The recall covers specific models with a missing fuse in the electrical system.
- Brand
Mack- Category
Vehicle
What to do — step by step
Contact Mack Customer Service
Call 1-800-866-1177 to schedule a free fuse installation at a dealer.
Get Free Fuse Installation
Dealers will install a fuse at no cost to fix the methane detector issue.
What NHTSA says to do
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.
How this recall unfolded
Recall timeline
Owners were mailed letters 14 days after NHTSA received the defect report.
- NHTSA received the defect report
- Owner letters mailed
- Added to GovInfoNow
Dates from the agency record only; steps without a date are left out.
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Where this comes from
The facts (hazard, remedy, dates, manufacturer) are pulled from the official NHTSA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
- Official source: NHTSA Recall #24V232000 (March 27, 2024)
- Plain-language summary written by qwen3:4b on October 8, 2026, from the official record above. Not reviewed by a person — if it conflicts with the NHTSA notice, the notice is correct. Report an error on this page.
- GovInfoNow is an independent service and is not a government agency. We republish official NHTSA recall data; we don’t issue, amend or administer recalls.