Recall 15V644000: 2011–2014 Mack Pinnacle (cxu) and 1 other model
- Report received
- Oct 13, 2015
- Manufacturer
- Mack Trucks, Inc.
- Potentially affected
- 448vehicles
- Model years
- 2011–2014
Check your own vehicle. A recall applies only to vehicles within the affected build range. Enter your VIN at nhtsa.gov/recalls. Recall repairs are free at a franchised dealer.
What NHTSA recorded
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.
Possible 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.
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.
Affected model years
Pages for each model year show complaints, parts, mileage and other recalls.
- 2011 Mack Pinnacle (chu)0 complaints
- 2012 Mack Pinnacle (chu)0 complaints
- 2013 Mack Pinnacle (chu)0 complaints
- 2014 Mack Pinnacle (chu)0 complaints
- 2011 Mack Pinnacle (cxu)0 complaints
- 2012 Mack Pinnacle (cxu)0 complaints
- 2013 Mack Pinnacle (cxu)2 complaints
- 2014 Mack Pinnacle (cxu)0 complaints
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.