US NHTSA records for Mack Anthem An (4). Check the affected model years, then verify your exact vehicle with NHTSA.
Results are official records from named sources. Coverage is incomplete. Match the exact model, batch and market, and confirm the latest instructions with the official source. A missing result is not a safety clearance.
25V803Received 2025-11-20EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE
Affected model years: 2026
High beam headlights that do not switch to low beam as intended can reduce visibility for oncoming traffic, increasing the risk of a crash.
Official action: 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, 2025.
26V207Received 2026-04-01EXTERIOR LIGHTING:TURN SIGNAL
Affected model years: 2027
Turn signals that do not function properly may fail to indicate the driver's intention to change vehicle direction, increasing the risk of a crash.
Official action: Dealers will update the turn signal indicator software, free of charge. Owner notification letters were mailed May 7, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0493. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov April 1, 2026.
26V261Received 2026-04-23SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE
Affected model years: 2026, 2027
A loss of anti-lock brakes and electronic stability control increases the risk of a crash or injury.
Official action: 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 searchable on NHTSA.gov beginning April 30, 2026.
26V351Received 2026-05-28WHEELS:LUGS/NUTS/BOLTS/STUDS
Affected model years: 2027
Wheel detachment can cause a loss of vehicle control or create a road hazard, increasing the risk of a crash or injury.
Official action: Owners are advised not to drive their vehicles until the repair has been performed. Dealers will inspect the wheel and hub mating surfaces, remove any masking material, and replace any worn components if necessary, free of charge. Owner notification letters were mailed June 22, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0495. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on May 31, 2026.
26V515Received 2026-08-06EXTERIOR LIGHTING
Affected model years: 2027
Marker lights that fail to illuminate can reduce visibility, increasing the risk of a crash.
Official action: Dealers will replace the center roof marker light, free of charge. Interim letters notifying owners of the safety risk were mailed September 22, 2026. Additional letters will be sent once the final remedy is available. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0498. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning August 13, 2026.
26V620Received 2026-09-28SERVICE BRAKES, ELECTRIC:SOFTWARE/PROGRAMMING
Affected model years: 2026, 2027
Reduced braking performance can require a greater distance to stop, increasing the risk of a crash.
Official action: 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.
26V631Received 2026-10-01STRUCTURE:EXTERIOR TRIM
Affected model years: 2026, 2027
A detached bezel can become a road hazard for other vehicles, increasing the risk of a crash.
Official action: 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, 2026.
Source snapshots: recall files 4 October 2026; complaint file 3 October 2026; investigation file 29 September 2026. Individually labelled archived records retain their older date.
Consumer reports — allegations
Complaint aggregates by model year
Zero complaint rows matched this make/model in the monitoring window. That is not a safety clearance.
NHTSA says complaints are consumer reports. RecallRecall excludes narratives, VINs, names, contact details and locations. A crash, fire, injury or death flag is reported information, not an independently verified causal finding.
