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.
The worst 2021 Mack Anthem (An) problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Driver assistance1
- Fuel system1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Driver assistance1
- Fuel system1
Recalls 5
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
Steering
- What is wrong
- 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.
- Risk
- A fractured steering gear can cause a loss of steering control, increasing the risk of a crash.
- 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.
Recall number 22V401000 · Recall details
Wheels: hub
- What is wrong
- Mack Trucks, Inc. (Mack) is recalling certain 2021-2022 Anthem, Granite, and Pinnacle vehicles. The hubcap compression spring can cause the hubcap to separate.
- Risk
- A separated hubcap can create a road hazard, increasing the risk of a crash.
- 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.
Recall number 21V416000 · Recall details
Electronic stability control (ESC): control module: software
- What is wrong
- 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."
- Risk
- A vehicle that drifts out of its lane increases the risk of a crash.
- 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.
Recall number 21V233000 · Recall details
Technical service bulletins for the 2021 Mack Anthem (An) 228
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
What 2021 Mack Anthem (An) owners say
Most recent owner complaints, unedited.
The secondary fuel filter housing broke causing the truck to shut off while driving.
Compare the 2021 Mack Anthem (An)
Other model years
Questions about the 2021 Mack Anthem (An)
Is the 2021 Mack Anthem (An) reliable?
Owners have filed 2 complaints about the 2021 Mack Anthem (An), close to a typical Anthem (An) model year.
What is the most common problem with the 2021 Mack Anthem (An)?
Driver assistance and stability, with 1 complaint. Next is fuel system (1).
How many recalls does the 2021 Mack Anthem (An) have?
5 recalls, covering seat belts, electrical system and steering.
Was there a recall on the 2021 Mack Anthem (An) driver assistance?
Yes, 1 recall: 21V233000. Check your VIN to see if your car still needs the free repair.
VIN decoder
See the problems and recalls for an exact car
Buying a used 2021 Mack Anthem (An)?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history