Recall 23V143 affects 17 2023 Mack Granite (Gr) trucks for loose front-drive steer axle fasteners. Repair is free at any franchised Mack dealer.
Mack is recalling 17 2023 Granite (Gr) trucks because the front-drive steer axle fasteners were not tightened enough and can loosen, resulting in complete separation of the axle assembly joints. If the steer axle assembly separates, the driver can lose vehicle control and face a higher crash risk; Mack dealers will complete the recall repair free of charge.
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What's wrong?
The front-drive steer axle on the 2023 Mack Granite (Gr) is the axle assembly at the front of the truck that supports steering while also sending drive power to the front wheels. Critical fasteners hold the axle joints and related hardware in position, so the axle assembly stays clamped together under load.
On affected trucks, the axle assembly went through a Meritor rework process where the front-drive steer axle fasteners were not tightened to the required torque. With too little clamping force, the fasteners can back off during operation. If the joint loosens far enough, the axle assembly joints can separate completely.
Drivers can notice handling issues before a joint failure. Treat any new handling change as a warning sign, and have the truck inspected so the hardware is torqued correctly and replaced where needed.
Who's affected?
| 2023 Mack Granite (Gr) | steering system |
|---|---|
| Units affected | 17 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific truck is included.
What's the safety risk?
Steer axle assembly separation can cause loss of vehicle control and increase the risk of a crash. If the truck develops handling issues, stop using it and contact a Mack dealer for inspection and repair. Schedule the recall repair soon, even if the truck feels normal. Repair is free at any franchised Mack dealer.
What should I do?
- Check your VIN to confirm your 2023 Mack Granite (Gr) is included in this recall.
- Contact a franchised Mack dealer to schedule the free front-drive steer axle fastener repair.
- Bring the owner letter if you have it, and reference recall number 23V143 when you call.
- Drive cautiously until the repair is complete, and leave extra following distance.
- Call Mack customer service at 1-800-866-1177 with questions and mention Mack recall SC0441.
What happens at the repair
At the dealer, a Mack technician checks the front drive steer axle fasteners, replaces fasteners that need replacement, and tightens the affected axle fasteners to the proper specification. The recall repair is free, with parts and labor covered. If you paid out of pocket for axle fastener work before the recall notice, Mack's standard reimbursement plan covers documented expenses. Keep invoices and repair orders, then contact Mack customer service or ask the dealer service desk how to submit the claim.
| Reimbursement | Reimbursement available |
|---|
Timeline
| March 3, 2023 | NHTSA published the recall |
|---|---|
| March 7, 2023 | Dealer notification began |
| March 7, 2023 | Dealer notification ended |
| March 20, 2023 | Owner notification mailed |
| April 28, 2023 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 23V143?
Recall 23V143 covers 17 2023 Mack Granite (Gr) vehicles with front-drive steer axle fasteners that were not tightened enough. Loose fasteners can let axle assembly joints separate, causing loss of vehicle control and increasing crash risk. Mack dealers will replace and tighten the fasteners for free.
What should I do if my 2023 Mack Granite (Gr) is on this recall?
Check your VIN to confirm your specific 2023 Mack Granite (Gr) is included in recall 23V143. If it is, contact a franchised Mack dealer to schedule axle-fastener replacement and tightening as needed. Reference Mack recall SC0441 or campaign 23V143 when you call. The dealer repair is free.
Is the recall repair free?
Yes. Federal recall law requires manufacturers to repair recall defects at no cost, and Mack will replace and tighten the axle fasteners, as needed, free of charge at a franchised Mack dealer. The repair applies regardless of where the truck was purchased.
Is it safe to drive my 2023 Mack Granite (Gr) before the repair?
The safety risk is loss of vehicle control if the steer axle assembly separates. If your VIN is included, call a franchised Mack dealer before using the truck and ask how they want it brought in for repair. Mack customer service is available at 1-800-866-1177.
When were owners notified about recall 23V143?
Mack mailed owner notification letters on March 20, 2023. 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 Mack dealer and reference recall SC0441 or campaign 23V143.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/23V143000 |
|---|---|
| Mack customer service | 1-800-866-1177 |
| NHTSA recall # | 23V143 |
| NHTSA recall # (full) | 23V143000 |
Source documents
-
Download Quarterly Report (PDF) - Download Owner Notification Letter (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Recall Acknowledgement (PDF)
- Download Recall Report (PDF)
- Download Owner Notice (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →