How many recalls does the 2021 Mack Lr have?

The 2021 Mack Lr has 3 NHTSA safety recall campaigns on record.

How do I check if my 2021 Mack Lr has an open recall?

Enter your 17-character VIN at NHTSA's official recall lookup (nhtsa.gov/recalls) to see open, unrepaired recalls for your specific vehicle. Recall repairs are free.

2021 Mack Lr Recalls

Recalls on record Updated July 2026

The 2021 Mack Lr has 3 NHTSA recall campaigns affecting an estimated 5,847 vehicles. Recall repairs are always free at any authorized dealer. Last updated July 5, 2026.

Recall campaigns

STEERING 22V401000 2022-06-07 5,644 affected

Defect

Mack Trucks, Inc. (Mack) is recalling certain 2021-22 Granite, Anthem, LR, Pinnacle, and Terrapro tractor trailers. The steering gears may have been assembled incorrectly, which can cause the gear to fracture.

Consequence

A fractured steering gear can cause a loss of steering control, increasing the risk of a crash.

Remedy

Dealers will replace the steering gear, free of charge. Owner notification letters were mailed on July 29, 2022. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0437.

STEERING 21V856000 2021-11-03 79 affected

Defect

Mack Trucks, Inc. (Mack) is recalling certain 2021 Granite and LR vehicles. A machining defect may cause pressure to build in the power steering pump and break the shaft seal, resulting in a loss of power steering assist.

Consequence

A loss of power steering assist increases the risk of a crash.

Remedy

Dealers will replace the power steering pump, free of charge. Owner notification letters were mailed on December 10, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0432.

SERVICE BRAKES, AIR 21V573000 2021-07-27 124 affected

Defect

Mack Trucks, Inc. (Mack) is recalling certain 2021 Granite, LR, and TerraPro vehicles. The rear drive axle may have the incorrect type of brake cam installed, which could result in inoperative rear axle brakes.

Consequence

Inoperative rear axle brakes can increase the distance required to stop, increasing the risk of a crash.

Remedy

Dealers will inspect the brake cams, and incorrect brake cams will be replaced, along with brake shoes, hardware, and wheel seals, as necessary, free of charge. Owner notification letters were mailed on August 10, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is…

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 2021 Mack Lr as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.