Vehicle Safety Data

2023 MACK GRANITE (GR) — Problems, Recalls & Safety Data

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N/A

Safety Rating

2

Owner Complaints

8

Recalls

ACTIVE RECALL

10

Service Bulletins

0

Investigations

Overview of the 2023 MACK GRANITE (GR)

The 2023 MACK GRANITE (GR) has received a total of 2 safety complaints filed with the National Highway Traffic Safety Administration (NHTSA). There have been 9 recall campaigns affecting this vehicle, covering issues with SEAT BELTS:FRONT:ANCHORAGE, ELECTRICAL SYSTEM:SOFTWARE, SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE. 10 technical service bulletins have been issued by Mack Trucks, Inc. for this model year. The most commonly reported problem area is the Fuel System Diesel (1 complaint).

Recalls for the 2023 MACK GRANITE (GR)

NHTSA has recorded 9 recalls for the 2023 MACK GRANITE (GR), potentially affecting up to 162,675 vehicles.

Recall 25V666000 — SEAT BELTS:FRONT:ANCHORAGE

| 15,841 vehicles affected

Defect: Mack Trucks, Inc. (Mack) is recalling certain 2020-2025 Mack MD, 2019-2025 Anthem, Granite, 2024 MD Electric, and 2025 Pinnacle trucks equipped with a passenger bench seat. The seat belt anchorage bracket may be improperly welded. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 210, "Seat Belt Assembly Anchorages."

Consequence: An improperly welded seat belt anchorage bracket can detach during a crash, increasing the risk of injury.

Remedy: Dealers will install a reinforcement plate, free of charge. Owner letters were mailed January 21, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0485. Vehicle Identification Numbers (VINs) involved in this recall will...

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Recall 24V792000 — ELECTRICAL SYSTEM:SOFTWARE

| 59,338 vehicles affected

Defect: Mack Trucks, Inc. (Mack) is recalling certain 2020-2025 Anthem, Granite, TerraPro and Pinnacle vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop working.

Consequence: Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may have diminished or lost functionality, increasing the risk of a crash.

Remedy: Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed December 9, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0472.

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Recall 24V792000 — SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE

| 59,338 vehicles affected

Defect: Mack Trucks, Inc. (Mack) is recalling certain 2020-2025 Anthem, Granite, TerraPro and Pinnacle vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop working.

Consequence: Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may have diminished or lost functionality, increasing the risk of a crash.

Remedy: Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed December 9, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0472.

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Recall 24V773000 — TIRES

| 49 vehicles affected

Defect: Mack Trucks, Inc. (Mack) is recalling certain 2019-2025 GR and 2018 GU Granite vehicles equipped with non-DOT tested tires. The tires may not have been DOT tested and confirmed to be sufficient for the vehicles. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 119, "New Pneumatic Tires - Other Than Passenger...

Consequence: Insufficient tires can fail, increasing the risk of a crash.

Remedy: Dealers will inspect and replace the tires as necessary, free of charge. Owner notification letters were mailed November 6, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0471.

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Recall 23V600000 — EXTERIOR LIGHTING:TURN SIGNAL

| 27,418 vehicles affected

Defect: Mack Trucks, Inc. (Mack) is recalling certain 2015-2023 GU and GR vehicles. The turn signals may be positioned incorrectly, reducing their visibility. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."

Consequence: Low turn signal visibility may not alert other drivers to a turning vehicle, increasing the risk of a crash.

Remedy: Dealers will add additional turn signal lighting, free of charge. Owner letters were mailed September 25, 2024. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0448.

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Recall 24V122000 — SERVICE BRAKES, AIR

| 10 vehicles affected

Defect: Mack Trucks, Inc. (Mack) is recalling certain 2022-2024 Granite vehicles. The air tanks have an insufficient volume of air for the brake system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."

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

Remedy: Dealers will add additional air tank volume, free of charge. Owner notification letters were mailed March 14, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0458.

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Recall 23V792000 — VEHICLE SPEED CONTROL

| 650 vehicles affected

Defect: Mack Trucks, Inc. (Mack) is recalling certain 2023-2024 GR, AN, LR, and Terrapro vehicles. The engine may not return to idle within 2 seconds if the accelerator pedal position sensor becomes disconnected. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 124, "Accelerator Control Systems."

Consequence: An engine that does not return to idle quickly enough can cause a loss of vehicle control, increasing the risk of a crash.

Remedy: Mack will replace the throttle pedal and update the vehicle software, free of charge. Owner letters were mailed February 27, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0455.

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Recall 23V143000 — STEERING:CRITICAL FASTENERS

| 17 vehicles affected

Defect: Mack Trucks, Inc. (Mack) is recalling certain 2023 Granite (GR) vehicles. The front-drive steer axle fasteners may not have been tightened sufficiently and could come loose, resulting in a complete separation of the axle assembly joints.

Consequence: Steer axle assembly separation can result in a loss of vehicle control, increasing the risk of a crash.

Remedy: Dealers will replace and tighten the axle fasteners, as necessary, free of charge. Owner notification letters were mailed March 20, 2023. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0441.

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Recall 22V295000 — SERVICE BRAKES, AIR

| 14 vehicles affected

Defect: 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."

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

Remedy: 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.

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Owner Complaints for the 2023 MACK GRANITE (GR)

2 complaints have been filed with NHTSA for the 2023 MACK GRANITE (GR). Below is a breakdown by vehicle component.

Fuel System Diesel
Complaints: 1
Fuelpropulsion System
Complaints: 1

Most Recent Complaints

#11534350 | FUEL/PROPULSION SYSTEM | | N/A miles
The Secondary fuel filter broke from the fuel filter head causing the truck to shut off while driving.
#11534035 | FUEL SYSTEM, DIESEL | | 11,443 miles
The contact owns a 2023 Mack Granite. The contact stated that while driving at an undisclosed speed, the secondary fuel filter detached, and the vehicle stalled. The vehicle was taken to an independent mechanic, where the vehicle was repaired. The fuel filter was replaced. The manufacturer was made aware of the failure. The failure mileage was approximately 11,443.

Safety Rating for the 2023 MACK GRANITE (GR)

NHTSA has not yet tested the 2023 MACK GRANITE (GR) in its New Car Assessment Program.

Technical Service Bulletins for the 2023 MACK GRANITE (GR)

Mack Trucks, Inc. has issued 10 technical service bulletins (TSBs) for the 2023 MACK GRANITE (GR). TSBs are notices sent by manufacturers to their dealers describing a known issue and the recommended repair procedure.

KC-2158 Rev 6 — ENGINE AND ENGINE COOLING

CBR - Mack Selective Catalytic Reduction (SCR) Muffler Troubleshooting Guide - US10+OBD13 And Newer Emissions

KC-2258 — POWER TRAIN

Diagnostic Trouble Code (DTC) P107471 - AMT-F

S7674 — POWER TRAIN

Snow door bumber install

S7653 — POWER TRAIN

Rear Sump Oil Pickup Replacement

S7653 — ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PUMP

Rear Sump Oil Pickup Replacement

S7653 — ENGINE AND ENGINE COOLING

Rear Sump Oil Pickup Replacement

S7641 — FORWARD COLLISION AVOIDANCE

Bendix Wingman Fusion, Front Radar Fulfillment

S7634 — LATCHES/LOCKS/LINKAGES

2022Central Door Lock Module Replacement

S7634 — ELECTRICAL SYSTEM

2022Central Door Lock Module Replacement

SLM22-004 — ELECTRICAL SYSTEM

Service Literature Published and Released in April, 2022

NHTSA Investigations for the 2023 MACK GRANITE (GR)

There are no NHTSA defect investigations on record for this vehicle.

Other Model Years of the MACK GRANITE (GR)

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Other MACK Models

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