repaired · 2026 Q3
Front: anchorage
Risk. An improperly welded seat belt anchorage bracket can detach during a crash, increasing the risk of injury.
2021 Mack Anthem (an)Problems, recalls & complaints
NHTSA has logged 2 owner complaints about the 2021 Mack Anthem (an), most often about the back over prevention. It is covered by 5 safety recalls, and for recall 25V-666 the manufacturer reports only 34% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through September 27, 2026. Updated daily.
Complaints by system
Where the 2021 Mack Anthem (an) has problems
2 complaints grouped by the system owners reported.
1Back over prevention1 crash/fire/injury
1Fuel/propulsion system
1Lane departure1 crash/fire/injury
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Back over prevention | 1 | 1 |
| Fuel/propulsion system | 1 | 0 |
| Lane departure | 1 | 1 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
5 recalls
2021 Mack Anthem (an) recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
repaired · 2026 Q3
Electrical system: software
Risk. Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System)…
repaired · 2024 Q2
Steering
Risk. A fractured steering gear can cause a loss of steering control, increasing the risk of a crash.
repaired · 2023 Q1
Wheels
Risk. A separated hubcap can create a road hazard, increasing the risk of a crash.
Show 1 more recall
repaired · 2023 Q1
Control module: software
Risk. A vehicle that drifts out of its lane increases the risk of a crash.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Mack.
Best & worst years
2021 vs. every other Anthem (an) year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the Anthem (an) median. How we score
'18'19'20'21'22'23'24'25'26
- Avoid
- Caution
- Solid
- Best
- Not rated
In owners' words
What Anthem (an) owners report
Recent back over prevention complaints filed with NHTSA, shortened. Personal details are removed.
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…
Own a 2021 Anthem (an)?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.