NHTSA vehicle safety data
2020 Mack LR Recalls, Ratings & Complaints
The 2020 Mack LR has 1 NHTSA recall campaign and 0 owner complaints on file as of October 16, 2026. Recall repairs are usually free at an authorized Mack dealer.
NHTSA recall and complaint data for the 2020 Mack LR. Recall data is refreshed daily from NHTSA.
STEERING
NHTSA #21V293000Reported April 26, 2021 · Mack Trucks, Inc.
Potentially affected: 272 vehicles
Defect description
Mack Trucks, Inc. (Mack) is recalling certain 2019-2020 LR vehicles. The steering transfer case may have an insufficient amount of oil.
Safety consequence
The internal bearings may fail without sufficient lubrication, causing steering lock-up and increasing the risk of a crash.
Manufacturer remedy
Dealers will replace the transfer case, free of charge. Owner notifications letters were mailed on May 12, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0424.
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.
Other Mack LR model years
Check your 2020 Mack LR VIN
Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Mack LR at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.
Check a Mack VIN