Mack 2018 MRU Trucks: ABS Warning Light Missing May Cause Trailer Crash
Mack recalls 2010-2018 MRU and 2019-2025 Terrapro towing vehicles missing ABS warning lights. This could cause trailer brakes to fail during driving, increasing crash risk. Owners received letters April 28, 2025.
Use caution until it’s fixed
Driving without a functioning anti-lock brake system may result in the trailer not braking as intended, increasing the risk of a crash.
What happened, in plain English
Mack is recalling certain 2010-2018 MRU and 2019-2025 Terrapro towing vehicles that lack anti-lock brake warning lights and circuitry. This means the trailer brakes may not work properly during driving, raising the risk of a crash. Owners received notification letters in April 2025. Read more at govinfonow.com/recall/1225194-mack-2018-mru-trucks-abs-warning-light-missing-may-cause.
Source Summary by GovInfoNow · govinfonow.com/recall/1225194-mack-2018-mru-trucks-abs-warning-light-missing-may-cause · Updated October 4, 2026 · Official notice: NHTSA #25V030000
Cite this page
“Mack 2018 MRU Trucks: ABS Warning Light Missing May Cause Trailer Crash.” GovInfoNow, updated October 4, 2026. https://govinfonow.com/recall/1225194-mack-2018-mru-trucks-abs-warning-light-missing-may-cause. Based on NHTSA recall #25V030000 (https://www.nhtsa.gov/recalls?nhtsaId=25V030000).
Why it’s dangerous
The vehicles lack the anti-lock brake warning light and circuitry needed to monitor trailer brakes. Without this system, the trailer may not brake properly during driving, especially in emergency situations. This violates federal safety standards for air brake systems.
Who’s affected
Truck owners with 2010-2018 MRU or 2019-2025 Terrapro towing vehicles are affected. Drivers using these vehicles with trailers face the highest risk due to potential brake failure.
How to tell if you have this one
Check if your truck has a 2010-2018 MRU or 2019-2025 Terrapro model. The recall covers vehicles missing the ABS warning light and circuitry that controls trailer brakes.
- Brand
Mack- Category
Vehicle
What to do — step by step
Contact Mack Customer Service
Call 1-800-866-1177 to confirm your vehicle is affected and schedule the free ABS warning light and circuitry installation.
Get ABS Warning Light and Circuitry
Dealers will add the ABS warning light and circuitry for free to fix the missing brake monitoring system.
What NHTSA says to do
Dealers will add an ABS warning light and circuitry, free of charge. Owner notification letters were mailed April 28, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0474.
How this recall unfolded
Recall timeline
Owners were mailed letters 3 months after NHTSA received the defect report.
- NHTSA received the defect report
- Owner letters mailed
Dates from the agency record only; steps without a date are left out.
Questions people ask
Do I need to stop using my truck immediately?
No, the recall requires a fix that dealers will install. You can keep using the truck after the repair.
Keep exploring
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 #25V030000 (January 23, 2025)
- Plain-language summary written by qwen3:4b on October 4, 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.