2021 MACK LR recalls

NHTSA campaigns received 2010 to 2026-09-30 that list the 2021 model year.

The 2021 MACK LR is covered by 3 recall campaigns. Repairs are free at a dealer; check your VIN to see which are still open.

Campaign	Received	Component
22V401000	2022-06-07	Steering
21V856000	2021-11-03	Steering › Hydraulic Power Assist › Pump
21V573000	2021-07-27	Service Brakes, Air

Each recall: problem, risk and fix

Steering (22V401000, 2022-06-07)

Problem: 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.

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

Free fix: 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.

Mack Trucks, Inc. · 5,644 vehicles · NHTSA record

Steering › Hydraulic Power Assist › Pump (21V856000, 2021-11-03)

Problem: 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.

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

Free fix: 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.

Mack Trucks, Inc. · 79 vehicles · NHTSA record

Service Brakes, Air (21V573000, 2021-07-27)

Problem: 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.

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

Free fix: 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 SC0427.

Mack Trucks, Inc. · 124 vehicles · NHTSA record

A recall covers a make, model and year range; whether one specific vehicle is affected or already repaired is confirmed by VIN at nhtsa.gov/recalls or by a dealer. Recall repairs are free. Source: NHTSA recall flat file (public domain), campaigns received since January 2010.

Other model years: 2015 · 2024 · All MACK LR recalls