SteeringRecall 17V-535 · Mack vehicles

Mack Trucks, Inc. recall 17V-535 covers 439 Mack vehicles for a steering problem, reported to NHTSA on August 31, 2017. The manufacturer's latest report (2019 Q1) shows 77% of affected vehicles repaired.

77%
Vehicles repaired340 of 439 · 2019 Q1
Vehicles affected4392 models
ReportedAug 31, 2017Owners notified Oct 17, 2017
Complaints since0Same system, after the recall

Source: NHTSA recall 17V535000 and manufacturer quarterly reports. Started by the manufacturer.

What's wrong

The 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.

The 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.

What to do

The fix

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.

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.

Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.

Repair progress

How fast cars are being fixed

77%repaired

Share of affected vehicles repaired in each quarterly report the manufacturer filed with NHTSA.

0%50%100%2017 Q42019 Q1
2 models

Vehicles in this recall

Built from March 9, 2015 to June 26, 2015. Not every vehicle in these model years is included; check by VIN.