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Mack Pinnacle (Chu) Recall 17V535: Loose Steering Tie Rod Can Cause Loss of Steering

NHTSA campaign 17V535, reported August 31, 2017, 439 vehicles potentially affected.

What this recall means for you

On certain 2016 Mack Pinnacle diesel trucks equipped with specific Dana steer axles, the castellated nut and cotter pin on the steer axle may not have been properly torqued. This can allow the tie rod to loosen within the steer axle.

If the tie rod loosens, it may disconnect from the steering knuckle, causing a complete loss of steering and increasing the risk of a crash. Owners should take this recall seriously.

The repair is free at an authorized dealer. Dealers will inspect the torque of the castellated nut and tie rod and tighten it as necessary. If the tie rod stud and knuckle cannot be sufficiently torqued, the dealer will replace the knuckle and tie rod end assembly at no charge. Owners can also contact Mack customer service at 1-800-866-1177, and should check their VIN for 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 17V535Mack Trucks, Inc.
Component
STEERING; STEERING:LINKAGES:TIE ROD ASSEMBLY
Problem
Mack Trucks, Inc. (Mack) is recalling certain 2016 Pinnacle CHU and CXU diesel trucks equipped with certain Dana steer axles. The castellated nut and cotter pin on the steer axles may not have been properly torqued, allowing the tie rod to loosen within the steer axle.
Risk
If the tie rod loosens, it may disconnect from the steering knuckle, causing a complete loss of steering, increasing the risk of a crash.
Remedy
Mack will notify owners, and dealers will inspect the torque of the castellated nut and tie rod, tightening it as necessary. If the tie rod stud and knuckle on units cannot be sufficiently torqued, the dealer will replace the knuckle and tie rod end assembly, free of charge. The recall began on October 17, 2017. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0408.
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)2016
Mack Pinnacle (Cxu)2016