Mack and Volvo Issue Do-Not-Drive Recall for Wheel-Off Risk

How many trucks are affected by the Mack and Volvo wheel-off recall?

Mack and Volvo have issued do-not-drive recalls covering hundreds of 2026 and 2027 model-year trucks for a wheel-off risk. The largest group is 446 Mack Granite units built between June 3, 2025, and May 19, 2026. Smaller numbers of Mack Pinnacle and Pioneer trucks from the same model years are also affected. On the Volvo side, the recall covers certain 2026 VAH units, 2026-2027 VN, VHD, and VNL models, and 2027 VNR vehicles.

Owners will receive advance notice not to operate affected vehicles until the remedy is performed. Neither manufacturer has disclosed the root cause of the wheel-off risk or the specific repair procedure.

What the recall means for fleets

A do-not-drive designation is the most severe recall classification. It means the OEM and NHTSA believe the defect poses immediate danger if the truck remains in service. For fleets with affected units, that means pulling trucks from dispatch until dealers complete the fix, even if wheels show no visible looseness or damage.

Wheel-off events typically stem from improper torque, damaged studs, or hub-mounting surface contamination. The production window (June 2025 through May 2026 for the Granite units) suggests a manufacturing or assembly process issue rather than a design flaw common to all units of these models.

Fleets should check VIN lists as soon as Mack and Volvo publish them. If a truck is on the list, park it. Wheel separation at highway speed can cause loss of control, rollover, or collision with other vehicles. The liability exposure for operating a truck under a do-not-drive notice is severe.

Recall timing and dealer capacity

The recall was announced June 15, 2026. Owners will receive written notice, but fleets should not wait for mail. Contact your Mack or Volvo dealer with VINs of 2026-2027 units in the affected model ranges to confirm status.

Dealer service bays will face a surge. If you have multiple affected trucks, expect scheduling delays. The remedy will likely involve wheel removal, hub inspection, stud replacement if needed, and retorque to spec. Budget two to four hours per truck if no parts need replacement, longer if studs or hubs are damaged.

Mack and Volvo have not stated whether loaner trucks or rental reimbursement will be offered. That is not standard practice for safety recalls, even do-not-drive notices. Fleets with thin spare capacity should plan for temporary shortages.

How this compares to other recent wheel-off recalls

Wheel-off recalls are not new, but do-not-drive classifications are rare. Most wheel-separation campaigns allow continued operation with increased inspection frequency until the fix is performed. The fact that both Mack and Volvo issued do-not-drive language suggests the failure mode is abrupt rather than progressive.

In May 2026, Fontaine issued a do-not-use warning for Fusion flatbeds due to hydrogen embrittlement in galvanized main beams. That recall involved structural failure risk, not wheel separation, but the severity language was similar. Both cases underscore the importance of monitoring recall notices in real time rather than waiting for annual safety audits.

What to do if you own an affected truck

First, verify your VINs against the recall list as soon as Mack and Volvo publish it. If a truck is on the list, take it out of service immediately. Do not wait for the dealer appointment.

Second, document the downtime. If the truck is under warranty or lease, check whether the agreement covers lost revenue during recall repairs. Most do not, but some lease contracts include downtime reimbursement for manufacturer defects.

Third, inspect your other trucks in the same model-year range, even if they are not on the recall list. Look for wheel-end play, stud elongation, or rust staining around lug nuts (a sign of movement). If you find anything abnormal, bring the truck in for inspection before the next load.

Fourth, when the repair is complete, get written confirmation from the dealer that the remedy was performed and the truck is cleared for service. Keep that paperwork with the truck's maintenance file. If a wheel-off incident occurs later and the truck was under recall, that documentation is your proof of compliance.