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Mack Pinnacle (Cxu) Recall 15V644: Trailer May Detach From Truck Due to Fifth Wheel Lock Failure

NHTSA campaign 15V644, reported October 13, 2015, 448 vehicles potentially affected.

What this recall means for you

Certain 2011-2014 Mack Pinnacle trucks (CHU and CXU models, built between September 10, 2010 and June 17, 2013) are equipped with Fontaine Ultra LT fifth wheel connectors. Over time, cumulative damage to the fifth wheel and its locking mechanism can cause the lock to fail to operate or to properly engage.

If the fifth wheel and locking mechanism are sufficiently damaged, the trailer may unexpectedly detach from the tractor, which increases the risk of a crash.

Mack will notify affected owners. Fontaine dealers will replace the fifth wheel with an Ultra NT model at no cost to you. The recall began November 18, 2015. To learn more, contact Mack customer service at 1-800-866-1177 (recall number SC0395), and check your VIN for any open recalls.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 15V644Mack Trucks, Inc.
Component
TRAILER HITCHES:FIFTH WHEEL ASSEMBLY
Problem
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.
Risk
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.
Remedy
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.
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 (Chu)2011201220132014
Mack Pinnacle (Cxu)2011201220132014