The Recall Desk
SevereNHTSA·11V461000·Announced 2011-09-01

Mack Pinnacle Trucks Recalled for Fifth Wheel Coupling Defect

Mack Trucks is recalling 2011-2012 Pinnacle CXU trucks because the fifth wheel lock may not fully engage, potentially allowing a trailer to detach.

What this means for you

Illness, injury, or structural failure has been reported. Stop using the product immediately and contact the manufacturer for a refund or repair.

Our severity reasoning: The recall involves a structural vehicle defect where a trailer can detach, potentially resulting in a vehicle crash, which aligns with the 'Severe' criteria for structural defects and significant injury/property-damage risks.

Plain-English summary

Mack Trucks, Inc. is recalling certain model year 2011-2012 Pinnacle CXU trucks manufactured between May 1, 2010, and January 31, 2011. The recall involves the fifth wheel assembly, specifically the lock bar mechanism used to couple trailers.

During the coupling process, it is possible for the driver to partially close the fifth wheel lock. If the driver relies solely on a tug test to verify the connection, they may incorrectly believe the lock is properly coupled to the trailer king pin when it is not. If the vehicle is driven with a trailer that is not properly coupled, the trailer can come loose, potentially resulting in a vehicle crash.

Mack Trucks will notify owners, and dealers will replace the lock bar free of charge. The safety recall began on December 7, 2011. Owners may contact Mack Trucks at 1-800-866-1177 or the NHTSA Vehicle Safety Hotline at 1-888-327-4236.

The recalled product

Product
MACK PINNACLE (CXU)
Brand
MACK
Manufacturer
MACK TRUCKS, INC
Category
Vehicle — Truck
Hazard
Affected units
113

Is your product affected?

Check your packaging against the codes below. If any of them match, the product is part of this recall.

Model numbers (1)

  • PINNACLE (CXU)

Distribution

Distributed nationwide across the United States.

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