Power train: driveline: driveshaft (Mack)
Vehicle recall 16V-099. NHTSA received Mack Trucks, Inc.’s report on Feb 19, 2016.
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The short answer
NHTSA received Mack Trucks, Inc.’s report on Feb 19, 2016. Copied from NHTSA on Oct 24, 2026.
Every line below is in NHTSA’s own words, with its source beside it.
What’s wrong with it?
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.
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.
NHTSA, Recalls flat file. Released Oct 24, 2026. Updated daily.
- NHTSA’s part: Power train: driveline: driveshaft.
What should you do?
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.
NHTSA, Recalls flat file. Released Oct 24, 2026. Updated daily.
- How to reach the firm: 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.
- Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.
Which ones are recalled?
NHTSA counts 33,981 vehicles potentially involved, across everything this recall names.
Each model year opens its own page: every recall naming it, its owner complaints and its crash ratings.
NHTSA, Recalls flat file. Released Oct 24, 2026. Updated daily.
- Mack Titan (TD)20162015and 2012, 2013 and 2014, before the model years listed here
- Mack Pinnacle (CHU)2015and 2012, 2013 and 2014, before the model years listed here
- Mack Terrapro (LEU)2015and 2012, 2013 and 2014, before the model years listed here
- Mack Pinnacle (CXU)2015and 2012, 2013 and 2014, before the model years listed here
- Mack Granite (GU)20162015and 2012, 2013 and 2014, before the model years listed here
- Mack Terrapro (MRU)20162015and 2012, 2013 and 2014, before the model years listed here
- Mack LR20162015
Who is recalling it?
- Made by Mack Trucks, Inc..
NHTSA, Recalls flat file. Released Oct 24, 2026. Updated daily.
What the record doesn’t say
- NHTSA’s recall file doesn’t say whether anyone was hurt. Owners’ complaints are counted on each vehicle’s page.
- Whether one vehicle or seat has been fixed: only its maker, or NHTSA’s lookup with a VIN, can say.
- How many have been returned or fixed isn’t in the notice.
Hearth Record wrote these lines.
Sources
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National Highway Traffic Safety Administration, Recalls flat file (FLAT_RCL_POST_2010).
Released Oct 24, 2026 and checked Oct 24, 2026. Updated daily. Public domain (U.S. Government work).
Vehicle, car seat, tire and vehicle equipment recalls, owner complaints and crash ratings are from the National Highway Traffic Safety Administration (NHTSA). Copied on Oct 24, 2026.