Vehicle recall 21V476000 · June 25, 2021
2020-2021 Mack Granite (gu)
The lower rear pivot cap screws may not be long enough to sufficiently engage the locking feature of the corresponding nuts.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- Mack Trucks, Inc. (Mack Trucks) is recalling certain 2020-2021 Granite vehicles equipped with certain SL2065 steerable lift axles. The lower rear pivot cap screws may not be long enough to sufficiently engage the locking feature of the corresponding nuts.
- Consequence
- The short screws can cause the hardware to separate from the suspension system and become a road hazard, increasing the risk of a crash or injury.
- Remedy
- Mack Trucks will inspect the suspension system and replace the lower rear pivot cap screws, as necessary, free of charge. Owner notification letters were mailed on July 30, 2021. Owners may contact Mack Trucks' customer service at 1-800-866-1177. Mack Trucks' number for this recall is SC0426.
- 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.nhtsa.gov.
Recall details
- NHTSA campaign
- 21V476000
- Reported to NHTSA
- June 25, 2021
- Filed by
- Mack Trucks, Inc.
- Manufacturer campaign
- SC0426
- Owner notification
- July 30, 2021
- Vehicles potentially affected
- 8
- Initiated by
- the manufacturer
- Components
- Suspension › Multiple axle
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
- Mack Granite (gu) (2020-2021): 2021, 2020
Has your Mack been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Mack dealer can also check your VIN. Recall repairs are free.