No complaints are listed for the 2026 Mack Anthem AN (4). NHTSA's API and bulk file list none in this build.
Data build 2026-10-09.
NHTSA lists this vehicle as MACK ANTHEM AN (4).
Model-generated complaint tags: No complaints are listed for tagging.
Recalls
See new recalls and investigations this week.
4 recalls.
Date: 2026-10-01. Systems: STRUCTURE.
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2026-2027 Anthem AN (4) and 2025-2027 Pioneer PR (4) vehicles. The intake and grille bezels may detach from the vehicle. (excerpt)
Consequence: A detached bezel can become a road hazard for other vehicles, increasing the risk of a crash. (excerpt)
Remedy: Dealers will inspect, replace the intake and grille bezels, and install cable ties as necessary, free of charge. Owner notification letters are expected to be mailed November 30, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0501. Vehicle Identification Numbers (VINs) involved in this recall will become searchable on NHTSA.gov on October 8, (excerpt)
Do not drive: No. Park outside: No.
Date: 2026-09-28. Systems: SERVICE BRAKES, ELECTRIC.
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2026-2027 Anthem AN (4) and Pioneer PR (4) vehicles equipped with a tanker application package. Inaccurate axle load calculations may cause reduced braking performance while transporting smoothbore tanker trailers.
Consequence: Reduced braking performance can require a greater distance to stop, increasing the risk of a crash.
Remedy: Dealers will install new software to disable the dynamic trailer braking calculations, free of charge. Owner notification letters are expected to be mailed November 27, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0500. Vehicle Identification Numbers (VINs) involved in this recall will become searchable on NHTSA.gov on October 5, 2026.
Do not drive: No. Park outside: No.
Date: 2026-04-23. Systems: SERVICE BRAKES, AIR.
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2025-2027 Pioneer (4) and 2026-2027 Anthem (4) vehicles. The rear brake modulators may have unprotected electrical connectors that can short circuit and lead to a loss of the anti-lock brake system (ABS) and electronic stability control (ESC). (excerpt)
Consequence: A loss of anti-lock brakes and electronic stability control increases the risk of a crash or injury. (excerpt)
Remedy: Dealers will inspect the rear brake modulator electrical connectors, install a protective cover, and replace the rear brake modulators, as necessary, free of charge. Owner notification letters were mailed June 8, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0494. Vehicle Identification Numbers (VINs) involved in this recall will be searchab (excerpt)
Do not drive: No. Park outside: No.
Date: 2025-11-20. Systems: EXTERIOR LIGHTING.
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2026 Anthem (4) and 2025-2026 Pioneer vehicles. The automatic high beams (AHB) may not switch to low beam headlights as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment." (excerpt)
Consequence: High beam headlights that do not switch to low beam as intended can reduce visibility for oncoming traffic, increasing the risk of a crash. (excerpt)
Remedy: As an interim action, Mack will update the vehicle software through an over-the-air (OTA) update to disable the AHB feature, free of charge. Owner letters were mailed May 29, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0488. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning November 27, (excerpt)
Do not drive: No. Park outside: No.
Manufacturer communications
70 manufacturer communications.
Communications by system| System | Count |
|---|
| ELECTRICAL SYSTEM | 48 |
|---|
| ENGINE | 10 |
|---|
| SERVICE BRAKES | 7 |
|---|
| UNKNOWN OR OTHER | 6 |
|---|
| POWER TRAIN | 3 |
|---|
| STRUCTURE | 3 |
|---|
| VEHICLE SPEED CONTROL | 3 |
|---|
| SEAT BELTS | 2 |
|---|
11037728
Date: 2026-09-27. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
Power Cable Alternator Replacement
11037725
Date: 2026-09-24. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
Instrument Cluster Going Dark
11037668
Date: 2026-09-17. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
Diagnostic instructions for CAN network communication issues.
11037724
Date: 2026-09-08. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
The purpose of this CBR is outline the interim software solution for PR(4) and AN(4).
11037821
Date: 2026-09-01. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
Jumper Harness Repair for Version 4 Mack Trucks
11036589
Date: 2026-08-25. Type: Service Bulletin/Repair Instructions. Systems: SERVICE BRAKES.
The purpose of this CBR is to provide support for complaints of trailer braking aggressively.
11036588
Date: 2026-08-24. Type: Service Bulletin/Repair Instructions. Systems: FUEL/PROPULSION SYSTEM.
The purpose of this CBR is to provide steps on how to utilize the injector widget (within workshop toolbox) to aid with injection system issues.
11036586
Date: 2026-08-17. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM, UNKNOWN OR OTHER.
The purpose of this CBR is to provide steps on how to correct a customer complaint of "Service Required" message for air filter replacement appears in the cluster. There may be no option in PTT or the cluster to reset the air filter service interval.
11036585
Date: 2026-08-07. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM, ENGINE.
The purpose of this CBR is to provide steps on how to correct a customer complaint of a no crank/engine start condition.
11035510
Date: 2026-07-22. Type: Service Bulletin/Repair Instructions. Systems: SERVICE BRAKES.
TSB - Wheel Speed Sensor Fitting And Cable Clamping.