2020 Mack Lr Recalls

Recalls on record Updated July 2026

The 2020 Mack Lr has 1 NHTSA recall campaign affecting an estimated 272 vehicles. Recall repairs are always free at any authorized dealer. Last updated July 5, 2026.

Recall campaigns

STEERING 21V293000 2021-04-26 272 affected
Defect

Mack Trucks, Inc. (Mack) is recalling certain 2019-2020 LR vehicles. The steering transfer case may have an insufficient amount of oil.

Consequence

The internal bearings may fail without sufficient lubrication, causing steering lock-up and increasing the risk of a crash.

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.

Sources & methodology

Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2020 Mack Lr as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.