NHTSA campaign 15V690000 · Mack campaign SC0397
Mack Recall 15V-690: Hex Nuts may be Improperly Torqued
NHTSA recall 15V690000 (Mack campaign SC0397) was reported by Mack Trucks, Inc. on October 22, 2015, with 8 vehicles potentially affected (per NHTSA). NHTSA's record lists the Mack GRANITE (GU) for the 2014 model year. Owners were notified on December 9, 2015, per NHTSA.
Updated daily from NHTSA's recall files
Is my vehicle included?
This page lists, by model year, the vehicles NHTSA's recall record names for campaign 15V690000 in the model years try.vin imports (1995 and later); NHTSA's own record can list more. A model year on the list doesn't mean every vehicle of that year is included, and some may already have been repaired.
To see whether a specific vehicle is included and still needs the repair, enter its VIN at nhtsa.gov/recalls.
Free VIN check: decode a VIN to see its year, make and model.
Key facts
- NHTSA campaign
- 15V690000 (also written 15V-690 or 15V690)
- Filed by
- Mack Trucks, Inc.
- Mack campaign number
- SC0397
- Report received
- Potentially affected
- 8 vehicles (per NHTSA)
- Component
- Power Train — Axle Assembly
- Owners notified
Repair completion: 50% (latest rate the manufacturer reported to NHTSA; dataset updated October 21, 2026)
NHTSA cautions against comparing completion rates across recalls or manufacturers. How try.vin reads them.
Vehicles listed for this recall
NHTSA's recall record lists these vehicles for recall 15V690000. try.vin imports model years 1995 and later, so NHTSA's own list can be longer. Model years with a try.vin recall page link to it. Build dates are NHTSA's range for a model year (per NHTSA); a vehicle built in that range is not necessarily included.
Mack
Mack GRANITE (GU)
- 2014 · Vehicles built January 1, 2013 – October 16, 2013 (per NHTSA)
NHTSA's recall notice
As NHTSA's recall record states it for campaign 15V690000.
Defect description
Mack Trucks, Inc. (Mack) is recalling certain model year 2014 Granite (GU) trucks manufactured January 1, 2013, to October 16, 2013, and equipped with certain drive axles manufactured by Marmon-Herrington. The affected axles are equipped with hex nuts on the flange yoke that may not have been properly tightened.
Safety consequence
If the hex nuts are not tightened to specification, the driveshaft may disconnect from the drive axle, resulting in a loss of propulsion and increasing the risk of a crash.
Manufacturer remedy
Mack will notify owners, and dealers will inspect the hex nut, tightening it to proper torque, free of charge. The recall is expected to begin on November 30, 2015. Owners may contact Mack customer service at 1-800-528-6586. Mack's number for this recall is SC0397.
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.
Sources
Official NHTSA notice for recall 15V690000
Campaign details come from NHTSA's recall files, which try.vin imports once a day. The plain-language subject and the completion rate come from the U.S. Department of Transportation's Recalls Data dataset. How try.vin reads recall data.