Safety Recall NHTSA · 15V644000 Reported October 13, 2015

Fifth wheel locking mechanism may not engage

Mack Trucks, Inc. · Trailer Hitches · 448 vehicles potentially affected

NHTSA ID
15V644000
Manufacturer Campaign
SC0395
Manufacturer
Mack Trucks, Inc.
Component
Trailer Hitches
Vehicles Affected
448
Recall Type
Vehicle
Report Received
October 13, 2015
Completion Rate
21.88

Defect Summary

Mack trucks, inc. (mack) is recalling certain model year 2011-2014 pinnacle (chu and cxu) trucks manufactured september 10, 2010, to june 17, 2013. the affected trucks are equipped with fontaine ultra lt fifth wheel connectors, which, due to cumulative damage to the fifth wheel and its locking mechanism, have a locking mechanism that may fail to operate or to properly engage.

Safety Consequence

If the fifth wheel and locking mechanism are sufficiently damaged, the locking mechanism may fail to operate as intended and the trailer may unexpectedly detach from the tractor, increasing the risk of a crash.

Corrective Action

Mack will notify owners, and fontaine dealers will replace the fifth wheel with an ultra nt model fifth wheel, free of charge. the recall began on november 18, 2015. owners may contact mack customer service at 1-800-866-1177. mack's number for this recall is sc0395.

What you should do

  1. Look up your VIN at nhtsa.gov/recalls to confirm this recall applies to your vehicle.
  2. Contact an authorized Mack Trucks, Inc. dealer and reference recall ID 15V644000 or campaign SC0395.
  3. Schedule the free repair. By federal law, the manufacturer must remedy the defect at no cost.
View Official NHTSA Notice →
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FAQ: Recall 15V644000

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

What is recall 15V644000?

NHTSA recall 15V644000 was issued by Mack Trucks, Inc. on October 13, 2015. It addresses: Fifth wheel locking mechanism may not engage. The recall affects approximately 448 vehicles, with the defect involving the Trailer Hitches component.

How do I get this recall repaired?

Contact any authorized Mack Trucks, Inc. dealer and reference NHTSA recall ID 15V644000 or the manufacturer campaign number SC0395. 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: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.