NHTSA vehicle safety data

2021 Mack ANTHEM (AN) Recalls & Complaints

The 2021 Mack ANTHEM (AN) has 5 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 2021 Mack ANTHEM (AN). Recall data is refreshed daily from NHTSA.

Pre-purchase inspection checklist → Reliability & 5-year cost forecast →

2021 Mack ANTHEM (AN) owner complaints

Owners have filed 2 complaints with NHTSA about the 2021 Mack ANTHEM (AN), describing incidents dated July 24, 2023 to May 6, 2026.

Most-cited components

Back Over Prevention 1 complaint
Fuel/Propulsion System 1 complaint
Lane Departure 1 complaint

Of the 2 complaints on file, 1 reports a crash; across both complaints, owners report 2 deaths (owner-reported, not verified by NHTSA).

Newest complaints

ODI #11767258 · Filed September 27, 2026
Driver 1 stated: “I was traveling in the right lane and going straight. The other truck was on the right shoulder. I was attempting to merge into the middle lane to provide additional space for the truck on the right shoulder. However, there was another vehicle in the middle lane, so I was unable to…
ODI #11534072 · Filed July 24, 2023
The secondary fuel filter housing broke causing the truck to shut off while driving.

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

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.

Steering Gear Assembled Incorrectly

NHTSA #22V401000 · Steering · NHTSA notice

Reported June 7, 2022 · Mack Trucks, Inc.

Potentially affected: 5,644 vehicles

Repair completion: 86.23% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Mack campaign SC0437 · Owners notified July 29, 2022

Defect description

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.

Safety consequence

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

Manufacturer remedy

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.

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.

Hubcap can Separate and Become Road Hazard

NHTSA #21V416000 · Wheels · NHTSA notice

Reported June 2, 2021 · Mack Trucks, Inc.

Potentially affected: 307 vehicles

Repair completion: 75.24% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Mack campaign SC 0425 · Owners notified June 30, 2021

Defect description

Mack Trucks, Inc. (Mack) is recalling certain 2021-2022 Anthem, Granite, and Pinnacle vehicles. The hubcap compression spring can cause the hubcap to separate.

Safety consequence

A separated hubcap can create a road hazard, increasing the risk of a crash.

Manufacturer remedy

Dealers will remove the hubcap, free of charge. Owner notification letters were mailed June 30, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0425.

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.

try.vin has no NCAP crash-test rating on file for the 2021 Mack ANTHEM (AN). 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 2021 Mack ANTHEM (AN).

Lane Departure; Back Over Prevention

ODI #11767258

Crash 2 deaths

Incident: May 6, 2026 · Filed: September 27, 2026

Driver 1 stated: “I was traveling in the right lane and going straight. The other truck was on the right shoulder. I was attempting to merge into the middle lane to provide additional space for the truck on the right shoulder. However, there was another vehicle in the middle lane, so I was unable to merge. I subsequently struck the truck that was stopped on the right shoulder.” Driver 2 stated: “We were on the right shoulder because the truck was experiencing mechanical issues. We were then struck from behind.” Investigation Findings The investigation revealed that Vehicle 1 (V1) and Vehicle 2 (V2) were traveling on the New Jersey Turnpike (NJTP) near milepost 99.5 in Elizabeth County. Vehicle 2 was stopped on the right shoulder due to mechanical issues. Driver 1 failed to maintain proper directional control of Vehicle 1 and subsequently struck the rear of Vehicle 2, which was stopped on the shoulder. A passenger in Vehicle 2 complained of neck and back pain but declined medical attention at the scene. Both vehicles were towed from the scene by Highway Towing, AIS 208.

Fuel/Propulsion System

ODI #11534072

Incident: July 24, 2023 · Filed: July 24, 2023

The secondary fuel filter housing broke causing the truck to shut off while driving.

Other Mack ANTHEM (AN) model years

Check your 2021 Mack ANTHEM (AN) VIN

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

Check a Mack VIN