Mack Trucks, Inc.: Safety Recalls in 2022

Updated on March 19, 2026.

There were 5 safety recalls made by Mack Trucks, Inc. in 2022. See the details of the recalls below.

You can also see similar information for other manufacturers.

Data Source: NHTSA.

See this for other years:

September 21, 2022

(Campaign #: NR (Not Reported))

High Voltage Battery Pack May Short Circuit

Mack Trucks, Inc. (Mack) is recalling one 2021 truck. The coolant line in the high voltage battery pack may not be fully seated and locked, which can result in the loss of coolant and an electrical short circuit.

NHTSA ID: 22V706000

Component: ELECTRICAL SYSTEM

# of Units Affected: 1

Consequence Summary:

A battery short circuit increases the risk of a fire.

Corrective Action:

Mack will inspect the battery packs, and replace them as necessary, free of charge. The affected vehicle was within the manufacturer's control, has been repaired, and therefore no owner letters were mailed. Owners may contact Mack's customer service at 1-800-866-1177.

Park Outside Advisory: No

Do not Drive Advisory: No

Completion Rate (%): 100

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August 9, 2022

(Campaign #: SC0438)

Electrical Short Circuit May Cause Engine Stall

Mack Trucks, Inc. (Mack) is recalling certain 2023 MD6/7 trucks. The engine control module (ECM) may experience an internal short-circuit, which can result in an unexpected engine shut down.

NHTSA ID: 22V606000

Component: ENGINE AND ENGINE COOLING

# of Units Affected: 150

Consequence Summary:

An unexpected engine shut down can increase the risk of a crash.

Corrective Action:

Cummins will replace the ECM, free of charge. Owner notification letters were mailed on September 27, 2022. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0438.

Park Outside Advisory: No

Do not Drive Advisory: No

Completion Rate (%): 41.33

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June 7, 2022

(Campaign #: SC0437)

Steering Gear Assembled Incorrectly

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.

NHTSA ID: 22V401000

Component:

# of Units Affected: 5,644

Consequence Summary:

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

Corrective Action:

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.

Park Outside Advisory: No

Do not Drive Advisory: No

Completion Rate (%): 81.64

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May 3, 2022

(Campaign #: SCC 0435)

Insufficient Air Volume in Brake System

Mack Trucks, Inc. (Mack) is recalling certain 2022 Granite trucks. The air tanks have an insufficient volume of air for the brake system. As such, these vehicles fail to comply with the requirements of the Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."

NHTSA ID: 22V295000

Component:

# of Units Affected: 14

Consequence Summary:

Insufficient air volume can reduce braking performance and increase the risk of a crash.

Corrective Action:

Dealers will install new air tanks, free of charge. Owner notification letters were mailed on May 31, 2022. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SCC 0435.

Park Outside Advisory: No

Do not Drive Advisory: No

Completion Rate (%): 100

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March 29, 2022

(Campaign #: SC0434)

Loss of Power Steering Assist

Mack Trucks, Inc. (Mack) is recalling certain 2023 LR Battery Electric trucks. During certain driving maneuvers, the power steering system may lose pressure, causing a loss of power steering assist.

NHTSA ID: 22V204000

Component: STEERING

# of Units Affected: 33

Consequence Summary:

Loss of power steering assist increases the risk of a crash.

Corrective Action:

Dealers replace the higher ratio steering gear and power steering pump software for higher RPM's on the steering pump, free of charge. Owner notification letters were mailed on May 24, 2022. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0434.

Park Outside Advisory: No

Do not Drive Advisory: No

Completion Rate (%): 81.82

View Full Recall Details