Recall 25V867 affects 679 2010-2016 Mack Granite (Gu) trucks for incorrect brake chambers and rear brake overheating. Repair is free at any franchised Mack dealer.
Mack is recalling 679 2010-2016 Granite (Gu) trucks because incorrect brake parts installed during later repairs can create a brake imbalance and overheat the rear brakes. Overheated brakes can cause a tire blowout or fire and increase crash risk; Mack dealers will complete the repair free of charge.
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What's wrong?
The brake chamber on a 2010-2016 Mack Granite (Gu) truck is part of the air brake system. It uses air pressure to move a mechanical pushrod, which applies the brake at the wheel. The chamber has to match the truck's axle and brake setup so each brake position gets the right force.
On affected trucks, the problem traces back to repair information tied to an earlier Mack recall. The dealer service system listed incorrect brake chamber parts for later repairs. When the wrong chamber is installed, braking force is not balanced correctly between axle positions, and the rear brakes can do too much work and overheat.
There is no warning sign before failure. A driver should not count on a dashboard light, pedal change, or other early symptom to show that the wrong chamber is installed.
Who's affected?
Spans the 2010-2016 model years, all tied to the brake chamber in the air disc brake system.
| 2014 Mack Granite (Gu) | brake system |
|---|---|
| 2011 Mack Granite (Gu) | brake system |
| 2012 Mack Granite (Gu) | brake system |
| 2015 Mack Granite (Gu) | brake system |
| 2013 Mack Granite (Gu) | brake system |
| 2010 Mack Granite (Gu) | brake system |
| 2016 Mack Granite (Gu) | brake system |
| Units affected | 679 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not confirm inclusion. Check your VIN to confirm whether your specific truck is included.
What's the safety risk?
Overheated brakes can cause a tire blowout or fire, increasing the risk of a crash. There is no warning sign before failure, so schedule the inspection soon and treat brake heat, smoke, or tire damage as a reason to stop and call the dealer. Repair is free at any franchised Mack dealer.
What should I do?
- Check your VIN to confirm your 2010-2016 Mack Granite (Gu) is included in this recall.
- Contact your nearest franchised Mack dealer to schedule the free brake-chamber inspection and replacement that corrects the brake imbalance tied to rear-brake overheating.
- Bring the recall notice if Mack mailed one. If not, reference recall number 25V867 and Mack recall SC0491 when you call.
- Tell the dealer if your truck received the earlier Recall 15V804 (SC0398) remedy, because Mack says those trucks need the new remedy completed.
- Drive cautiously until the repair is complete, leave extra following distance, and stop driving if the brakes overheat.
What happens at the repair
At the dealer, a Mack technician inspects the brake chambers and replaces any covered chambers that fail inspection. The replacement parts and labor are free under the recall. Trucks repaired under recall 15V804 (SC0398) still need this new remedy completed. Mack used its general reimbursement plan for this campaign, so documented out-of-pocket repairs for the same brake chamber issue can be submitted for review. Bring the related repair paperwork to the service desk or contact Mack customer service for the claim path.
| Reimbursement | Reimbursement available |
|---|
Timeline
| December 15, 2025 | NHTSA published the recall |
|---|---|
| December 22, 2025 | Dealer notification began |
| December 22, 2025 | Dealer notification ended |
| December 22, 2025 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| February 2, 2026 | Interim owner notification (was planned for this date) |
| April 14, 2026 | Owner notification mailed |
Frequently asked questions
What is recall 25V867?
Recall 25V867 covers 679 2010-2016 Mack Granite (Gu) trucks that received a remedy under earlier recall 15V804 (SC0398) and need a new inspection for incorrect brake chambers. Incorrect parts can create a brake imbalance and overheat the rear brakes.
What should I do if my 2010-2016 Mack Granite (Gu) is on this recall?
Check your VIN to confirm your specific truck is included in recall 25V867. If it is, contact a franchised Mack dealer to schedule the brake-chamber inspection and replacement, if needed. Reference Mack recall number SC0491 when you call. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost. Mack dealers will inspect the brake chambers and replace them as needed, free of charge, for trucks included in recall 25V867.
What is the safety risk?
The safety risk is brake overheating. If incorrect brake chambers create a brake imbalance, the rear brakes can overheat, which can lead to a tire blowout or fire and increase crash risk. The dealer repair path is inspection and brake-chamber replacement as needed.
When did Mack notify owners about recall 25V867?
Mack mailed owner letters on April 14, 2026. If you bought the truck used or never received a letter, the VIN still decides whether the recall applies. Check your VIN, then call a franchised Mack dealer with recall number SC0491.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/25V867000 |
|---|---|
| Mack customer service | 1-800-866-1177 |
| NHTSA recall # | 25V867 |
| NHTSA recall # (full) | 25V867000 |
Source documents
-
Download Recall Investigation Document (PDF) (PDF) - Download Owner Notification Letter (PDF)
- Download Recall Report (PDF)
- Download Recall Document (PDF) (PDF)
- Download Owner Notice (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 19, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →