The Secondary fuel filter broke from the fuel filter head causing the truck to shut off while driving.
The worst 2023 Mack Granite (GR) problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Fuel system2
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Fuel system2
Recalls 8
Seat belts: front: anchorage
- What is wrong
- 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."
- Risk
- 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 be searchable on beginning October 13, 2025.
Recall number 25V666000 · Recall details
Electrical system: software
- What is wrong
- 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.
- Risk
- 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.
Recall number 24V792000 · Recall details
Tires
- What is wrong
- 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 Cars."
- Risk
- 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.
Recall number 24V773000 · Recall details
Service brakes, air
- What is wrong
- 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."
- Risk
- 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.
Recall number 24V122000 · Recall details
Vehicle speed control
- What is wrong
- 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."
- Risk
- 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.
Recall number 23V792000 · Recall details
Exterior lighting: turn signal
- What is wrong
- 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."
- Risk
- 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.
Recall number 23V600000 · Recall details
Steering: critical fasteners
- What is wrong
- 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.
- Risk
- 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.
Recall number 23V143000 · Recall details
Service brakes, air
- What is wrong
- 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."
- Risk
- 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.
Recall number 22V295000 · Recall details
Technical service bulletins for the 2023 Mack Granite (GR) 179
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- All Mack vehicles built with USA17, and forward emissions may experience damage to the diesel exhaust...
- Certain AN, GR, and Pl model trucks could experience an issue with the clutch position sensor causing PTO...
- Parker engine-mounted hydraulic pump service bulletin.
- Mack Trucks Equipped With A Cummins Engine
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What 2023 Mack Granite (GR) owners say
Most recent owner complaints, unedited.
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.
Compare the 2023 Mack Granite (GR)
Other model years
Questions about the 2023 Mack Granite (GR)
Is the 2023 Mack Granite (GR) reliable?
Owners have filed 2 complaints about the 2023 Mack Granite (GR), close to a typical Granite (GR) model year.
What is the most common problem with the 2023 Mack Granite (GR)?
Fuel and propulsion system, with 2 complaints.
How many recalls does the 2023 Mack Granite (GR) have?
8 recalls, covering seat belts, electrical system and tires.
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