Mack Granite 2025 Vehicle Recall: Brake ECU Safety Risk
Mack recalls 2020-2025 Granite trucks with Bendix EC80 ECU for potential brake system failure. Safety systems may not work correctly, increasing crash risk. Owners must contact Mack for free software update.
Use caution until it’s fixed
Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may have diminished or lost functionality, increasing the risk of a crash.
Contact the company
What happened, in plain English
Mack is recalling certain 2020-2025 Granite trucks that may have brake system safety issues. The ECU software could malfunction, risking crashes. Owners need to get a free software update from dealers. Read more at govinfonow.com/recall/79859-mack-granite-2025-vehicle-recall-brake-ecu-safety-risk.
Source Summary by GovInfoNow · govinfonow.com/recall/79859-mack-granite-2025-vehicle-recall-brake-ecu-safety-risk · Updated September 23, 2026 · Official notice: NHTSA #24V792000
Cite this page
“Mack Granite 2025 Vehicle Recall: Brake ECU Safety Risk.” GovInfoNow, updated September 23, 2026. https://govinfonow.com/recall/79859-mack-granite-2025-vehicle-recall-brake-ecu-safety-risk. Based on NHTSA recall #24V792000 (https://www.nhtsa.gov/recalls?nhtsaId=24V792000).
Why it’s dangerous
Electrical noise or low signal to the power line carrier can cause the ECU to process commands incorrectly or stop working. This may disable critical safety systems like ABS, traction control, and collision avoidance.
Who’s affected
Owners of 2020-2025 Mack Granite trucks with Bendix EC80 ECU are affected. Drivers using these vehicles may face reduced safety features if the ECU malfunctions.
How to tell if you have this one
Check if your 2020-2025 Mack Granite truck has a Bendix EC80 ECU. The recall covers vehicles with this specific electronic control unit.
- Brand
Mack- Category
Vehicle
What to do — step by step
Contact Mack Customer Service
Call 1-800-866-1177 to schedule a free ECU software update at a dealer.
Get ECU Software Update
Dealers will reprogram the ECU software for free to fix the safety issue.
What NHTSA says to do
Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed December 9, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0472.
How this recall unfolded
Recall timeline
Owners were mailed letters 47 days 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.
Contact Mack
We’ve drafted a message you can send Mack to request your refund or repair — edit it as you like.
Subject: Recall 24V792000 — Mack Granite 2025 Vehicle Recall: Brake ECU Safety Risk Hello, I own a Mack Granite 2025 Vehicle Recall: Brake ECU Safety Risk that is covered by recall 24V792000 from Mack. The official recall notice states: Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed December 9, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0472. I’m writing to arrange the remedy described in the recall (a refund, repair, or replacement as applicable). Could you please tell me the next steps to resolve this? Thank you.
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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 #24V792000 (October 23, 2024)
- Plain-language summary written by qwen3:4b on September 23, 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.