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Mack Pinnacle (Cxu) Recall 15V139: Trailer May Unhitch Unexpectedly, Raising Crash Risk

NHTSA campaign 15V139, reported March 11, 2015, 262 vehicles potentially affected.

What this recall means for you

Certain 2012-2015 Mack Pinnacle (CXU) trucks, built between February 4, 2011 and December 23, 2014, have an air release fifth wheel latch with a release switch that can be pushed accidentally. If this happens after the parking brake has been released, the trailer can unintentionally disconnect from the tractor.

An unintended trailer separation increases the risk of a crash. Owners should check whether their vehicle is affected and whether it has an open recall for this issue by entering their VIN on the NHTSA recall lookup or by contacting Mack customer service at 1-800-528-6586, referencing recall number SC0390.

Mack will notify owners, and dealers will install a secondary action that operators must activate before the fifth wheel will release. The repair is free of charge at an authorized Mack dealer. The recall began on May 6, 2015.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 15V139Mack Trucks, Inc.
Component
TRAILER HITCHES:FIFTH WHEEL ASSEMBLY
Problem
Mack Trucks, Inc (Mack) is recalling certain model year 2012-2015 CXU trucks manufactured February 4, 2011, to December 23, 2014, and equipped with an air release fifth wheel latch. The affected vehicles have a switch to release the fifth wheel latch that may invertently be pushed and cause the trailer to unintentionally disconnect from the tractor after the parking brake has been released.
Risk
An inadvertent decoupling of the trailer from the tractor may increase the risk of a crash.
Remedy
Mack will notify owners, and dealers will install a secondary action that operators will need to activate before the fifth wheel will release, free of charge. The recall began on May 6, 2015. Owners may contact Mack customer service at 1-800-528-6586. Mack's number for this recall is SC0390.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Affected vehicles

Mack Pinnacle (Cxu)2012201320142015