Safety Recall NHTSA · 26V509000 Reported August 6, 2026

Steering gearbox fasteners may loosen

Q: What is recall 26V509000?

NHTSA recall 26V509000 was issued by Mack Trucks, Inc. on August 6, 2026. It addresses: Steering gearbox fasteners may loosen. The recall affects approximately 341 vehicles , with the defect involving the Steering component.

Q: Is my vehicle included in this recall?

The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls . NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.

Q: How long do I have to get a recall repair done?

There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.

Mack Trucks, Inc. · Steering · 341 vehicles potentially affected

NHTSA ID

26V509000

Manufacturer Campaign

SC0497

Manufacturer

Mack Trucks, Inc.

Component

Steering

Vehicles Affected

341

Recall Type

Vehicle

Report Received

August 6, 2026

Defect Summary

Mack trucks, inc. (mack) is recalling certain 2025 terrapro trucks. The steering gearbox fasteners may loosen.

Safety Consequence

A loose steering gearbox can result in a loss of steering, increasing the risk of a crash.

Corrective Action

Dealers will inspect and tightened or replace the fasteners as necessary, free of charge. Owner notification letters are expected to be mailed october 5, 2026. Owners may contact mack's customer service at 1-800-866-1177. Mack's number for this recall is sc0497.

What you should do

Look up your VIN at nhtsa.gov/recalls to confirm this recall applies to your vehicle.
Contact an authorized Mack Trucks, Inc. dealer and reference recall ID 26V509000 or campaign SC0497.
Schedule the free repair. By federal law, the manufacturer must remedy the defect at no cost.

View Official NHTSA Notice →

Similar Recalls

Other recalls from Mack Trucks, Inc. or involving Steering.

Recall 26V515000

Mack Trucks, Inc.

Marker lights may fail to illuminate/fmvss 108

N/A · 513 affected · Aug 6, 2026

Recall 26V500000

Honda (american Honda Motor Co.)

Handlebar lock screw may detach and interfere with steering

Steering · 43,913 affected · Jul 30, 2026

Recall 78V222000

Mack Trucks, Inc.

Electrical system:wiring

Electrical System · 161 affected · Oct 11, 1978

Recall 26E045000

Tenneco Automotive

Loss of steering

Steering · 5,290 affected · Jul 10, 2026

Recall 73V002000

International Truck & Engine Corporation

Steering:linkages:link:drag:connection

Steering · 100 affected · Nov 2, 1973

FAQ: Recall 26V509000

Your rights, the repair process, and what each field on this page means.

What is recall 26V509000?

NHTSA recall 26V509000 was issued by Mack Trucks, Inc. on August 6, 2026. It addresses: Steering gearbox fasteners may loosen. The recall affects approximately 341 vehicles, with the defect involving the Steering component.

How do I get this recall repaired?

Contact any authorized Mack Trucks, Inc. dealer and reference NHTSA recall ID 26V509000 or the manufacturer campaign number SC0497. Under federal law, the repair is completely free regardless of vehicle age or owner history.

Is my vehicle included in this recall?

The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.

How long do I have to get a recall repair done?

There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.

Where does the data on this page come from?

All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-08-17. For the most current official notice, visit nhtsa.gov/recalls.