NHTSA vehicle safety data

2020 Mack GRANITE (GR) Recalls & Complaints

The 2020 Mack GRANITE (GR) has 7 NHTSA recall campaigns and 2 owner complaints on file as of November 3, 2026. Recall repairs are usually free at an authorized Mack dealer.

NHTSA recall and complaint data for the 2020 Mack GRANITE (GR). Recall data is refreshed daily from NHTSA.

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2020 Mack GRANITE (GR) owner complaints

Owners have filed 2 complaints with NHTSA about the 2020 Mack GRANITE (GR), describing incidents dated April 5, 2022 to May 12, 2023.

Most-cited components

Power Train 2 complaints

Newest complaints

ODI #11567837 · Filed January 25, 2024
The driver was driving down the freeway and lost all power. The driveshaft fell out of the truck at 70 mph, luckly the truck was working a night shift and traffic was light, only a piece was still attached. The dealer confirmed rear differenial failure. There were no warnings before the failure.
ODI #11567832 · Filed January 25, 2024
The driver was driving down an arterial street and the thru shaft failed on a blind corner. The driver was able to limp the truck to the shoulder. The drivers safety was put at risk as well as everyone else on the road, there would have been no way to move the trailer if it had been loaded and was…

Read all 2 complaints

Improperly Welded Seat Belt Anchor/FMVSS 210

NHTSA #25V666000 · Seat Belts — Front — Anchorage · NHTSA notice

Reported October 6, 2025 · Mack Trucks, Inc.

Potentially affected: 15,841 vehicles

Repair completion: 34.23% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Mack campaign SC0485 · Owners notified January 21, 2026

Defect description

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."

Safety consequence

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

Manufacturer 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 NHTSA.gov beginning October 13, 2025.

ECU Malfunction May Impact Safety Systems

NHTSA #24V792000 · Service Brakes, Hydraulic — Antilock/Traction Control/Electronic Limited Slip — Control Unit/Module · NHTSA notice

Reported October 23, 2024 · Mack Trucks, Inc.

Potentially affected: 59,338 vehicles

Repair completion: 73.38% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Mack campaign SC0472 · Owners notified December 9, 2024 · Vehicles built starting May 1, 2019 (per NHTSA)

Defect description

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.

Safety 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.

Manufacturer 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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153) or go to nhtsa.gov.

Untested Tires May Fail/FMVSS 119

NHTSA #24V773000 · Tires · NHTSA notice

Reported October 18, 2024 · Mack Trucks, Inc.

Potentially affected: 49 vehicles

Repair completion: 73.47% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Mack campaign SC0471 · Owners notified November 6, 2024

Defect description

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."

Safety consequence

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

Manufacturer 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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153) or go to nhtsa.gov.

Low Turn Signal Visibility/FMVSS 108

NHTSA #23V600000 · Exterior Lighting — Turn Signal · NHTSA notice

Reported August 25, 2023 · Mack Trucks, Inc.

Potentially affected: 27,418 vehicles

Repair completion: 53.18% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Mack campaign SC0448

Defect description

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."

Safety consequence

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

Manufacturer 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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

Vehicle May Not Stay In Lane/FMVSS 136

NHTSA #21V233000 · Electronic Stability Control (ESC) — Control Module — Software · NHTSA notice

Reported April 1, 2021 · Mack Trucks, Inc.

Potentially affected: 557 vehicles

Repair completion: 77.38% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Mack campaign SC0423 · Owners notified April 21, 2021

Defect description

Mack Trucks, Inc. (Mack) is recalling certain 2018-2022 Anthem (AN), Granite (GR/GU), and Pinnacle (CHU/CXU/PI) vehicles equipped with "camelback" rear suspension and electronic stability control. The vehicles may not stay in their lane at certain speeds. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 136, "Electronic Stability Control Systems on Heavy Vehicles."

Safety consequence

A vehicle that drifts out of its lane increases the risk of a crash.

Manufacturer remedy

Mack will notify owners, and dealers will reprogram the vehicle control units, free of charge. The recall began on April 21, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0423.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Possible Drag Link Separation

NHTSA #19V896000 · Steering — Linkages — Drag — Link — Connection · NHTSA notice

Reported December 16, 2019 · Mack Trucks, Inc.

Potentially affected: 80 vehicles

Repair completion: 88.75% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Mack campaign SC0420 · Owners notified January 14, 2020 · Vehicles built September 16, 2019 – October 10, 2019 (per NHTSA)

Defect description

Mack Trucks, Inc. (Mack) is recalling certain 2020 Anthem (AN), Granite (GR), and Pinnacle (PI) vehicles. The castle nuts and cotter pins used to connect the steering drag link to the pitman arm and steering arm may have not been correctly installed, potentially causing separation of the drag link.

Safety consequence

If the drag link separates, loss of steering control my occur, increasing the risk of a crash.

Manufacturer remedy

Mack will notify owners, and dealers will inspect the drag link attachment points, repairing them, as necessary, free of charge. The recall began January 14, 2020. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0420.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Passenger Down View Mirror May Detach

NHTSA #19V054000 · Visibility — Rearview Mirrors/Devices — Exterior · NHTSA notice

Reported January 24, 2019 · Mack Trucks, Inc.

Potentially affected: 3,906 vehicles

Repair completion: 67.54% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Mack campaign SC0416 · Owners notified March 19, 2019 · Vehicles built January 15, 2018 – January 11, 2019 (per NHTSA)

Defect description

Mack Trucks, Inc. (Mack) is recalling certain 2019-2020 Mack Anthem, Granite, Pinnacle vehicles. The passenger side door down view mirror may detach from the door.

Safety consequence

If the mirror detaches from the door, the mirror may strike another vehicle or pedestrian, increasing the risk of injury or crash.

Manufacturer remedy

Mack will notify owners, and dealers will properly attach the mirror, free of charge. The recall began March 19, 2019. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0416.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

try.vin has no NCAP crash-test rating on file for the 2020 Mack GRANITE (GR). NHTSA rates some vehicles by body style — pickups by cab, vans by roof height — so check nhtsa.gov/ratings.

2 owner complaints have been filed with NHTSA for the 2020 Mack GRANITE (GR).

Power Train

ODI #11567837

Incident: May 12, 2023 · Filed: January 25, 2024

The driver was driving down the freeway and lost all power. The driveshaft fell out of the truck at 70 mph, luckly the truck was working a night shift and traffic was light, only a piece was still attached. The dealer confirmed rear differenial failure. There were no warnings before the failure.

Power Train

ODI #11567832

Incident: April 5, 2022 · Filed: January 25, 2024

The driver was driving down an arterial street and the thru shaft failed on a blind corner. The driver was able to limp the truck to the shoulder. The drivers safety was put at risk as well as everyone else on the road, there would have been no way to move the trailer if it had been loaded and was blocking the road. The dealer was able to replace the thru shaft. The differential failed 7 months later and broke the drive shaft in half. Luckily the driver was able to get over to the shoulder and the pieces wedged between the crossmember and bottom of the truck so nothing was dropped onto the highway. The dealer performed the repairs under warranty. There was no warning before this happened.

Other Mack GRANITE (GR) model years

Check your 2020 Mack GRANITE (GR) VIN

Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Mack GRANITE (GR) at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.

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