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NHTSA Recall 16V099000: Driveshaft (power train)

Mack Trucks, Inc. reported this safety recall to NHTSA on , covering an estimated 33,981 vehicles. It affects 7 models including the Mack Granite (gu).

33,981
vehicles potentially affected
7
models affected
2016
owners notified (June 7)
NHTSA campaign16V099000
Manufacturer campaignSC0399
ComponentPOWER TRAIN › DRIVELINE › DRIVESHAFT
Report receivedFebruary 19, 2016
Owner notificationJune 7, 2016
Initiated byManufacturer

Defect

Mack Trucks, Inc. (Mack) is recalling certain model year 2012-2016 Granite (GU), Pinnacle (CHU, CXU), TerraPro (LEU, MRU), Titan (TD), and LR trucks manufactured from September 1, 2011, through September 8, 2015. The cap nut that retains the interaxle driveshaft yoke to the rear axle input shaft may loosen.

Safety risk

If he cap nut loosens and falls off, the yoke can separate from the axle input shaft and allow the drive shaft to disconnect, increasing the risk of a crash.

Remedy

Mack will notify owners, and dealers will replace the cap nut. The input shaft threads will be inspected for damage. Any damaged input shaft will be replaced. These repairs will be performed free of charge. An interim notice was sent to owners on April 25, 2016. The recall began on June 7, 2016. Owners may contact Mack customer service at 1-610-709-2131. Mack's recall campaign number for this recall is SC0399.

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.

Vehicles covered by recall 16V099000

Make and modelModel years
Mack Granite (gu)2012, 2013, 2014, 2015, 2016
Mack Lr2015, 2016
Mack Pinnacle (chu)2012, 2013, 2014, 2015
Mack Pinnacle (cxu)2012, 2013, 2014, 2015
Mack Terrapro (leu)2012, 2013, 2014, 2015
Mack Terrapro (mru)2012, 2013, 2014, 2015, 2016
Mack Titan (td)2012, 2013, 2014, 2015, 2016

Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.