Marker lights that fail to illuminate can reduce visibility, increasing the risk of a crash.
✎ GovInfoNow plain-language explainer
Mack Trucks is recalling certain 2027 Anthem AN (4) and Pioneer PR (4) vehicles due to a defect in the exterior lighting system. The center roof marker lights may fail to turn on, which reduces the vehicle's visibility to other drivers and increases the risk of a crash. Dealers will replace the faulty light free of charge. Read more at govinfonow.com/recall/1387671-mack-2027-anthem-recall-roof-marker-lights-may-fail.
“Mack 2027 Anthem Recall: Roof Marker Lights May Fail.” GovInfoNow, updated October 10, 2026. https://govinfonow.com/recall/1387671-mack-2027-anthem-recall-roof-marker-lights-may-fail. Based on NHTSA recall #26V515000 (https://www.nhtsa.gov/recalls?nhtsaId=26V515000).
Mack Trucks, Inc. recalled certain 2027 Anthem AN (4) and Pioneer PR (4) trucks for exterior lighting hazards, according to the National Highway Traffic Safety Administration (NHTSA). The agency announced the recall on August 6, 2026. Dealers will replace the center roof marker lights free of charge.
How to tell if you have it
Mack Anthem AN (4), 2027
Mack Pioneer PR (4), 2027
What to do
Dealers will replace the center roof marker light, free of charge. Owners may contact Mack's customer service at 1-800-866-1177.
The hazard
The center roof marker lights may fail to illuminate, reducing visibility and increasing the risk of a crash. These vehicles fail to comply with Federal Motor Vehicle Safety Standard number 108.
Context
GovInfoNow's records show Mack Trucks, Inc. has 74 other recalls on record since July 9, 2010. Recent similar recalls include a detached intake bezel crash risk (Oct. 1, 2026), a brake software issue (Sept. 28, 2026), and a loose steering gearbox risk (Aug. 6, 2026). Other recent recalls of similar products include a Volvo VNL exterior lighting recall (Aug. 6, 2026), a Volvo VNL roof marker light failure (Nov. 3, 2025), and a Ford Expedition exterior lighting recall (Sept. 22, 2026).
How to tell if you have this one
This recall applies to certain 2027 Anthem AN (4) and Pioneer PR (4) vehicles manufactured by Mack Trucks. You can check if your specific vehicle is included by searching its Vehicle Identification Number (VIN) on NHTSA.gov starting August 13, 2026.
Brand
Mack
Category
Vehicle
Based on the official NHTSA remedy
What to do — step by step
Check Recall Status
Search your VIN on NHTSA.gov beginning August 13, 2026 to confirm if your vehicle is part of this recall.
Contact Dealer for Repair
Have a dealer replace the center roof marker light free of charge once the remedy becomes available.
Call Customer Service
Contact Mack customer service at 1-800-866-1177 for more information about the recall.
Official remedy
What NHTSA says to do
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.
How this recall unfolded
Recall timeline
GovInfoNow listed this recall 2 months after the agency date.
1NHTSA received the defect report
2Interim owner letters mailed
3Added to GovInfoNow
Dates from the agency record only; steps without a date are left out.
The facts (hazard, remedy, dates, manufacturer) are pulled from the official NHTSA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
Plain-language summary written by qwen3.6:35b-a3b on October 10, 2026, from the official record above. Not reviewed by a person — if it conflicts with the NHTSA notice, the notice is correct. Report an error on this page.
GovInfoNow is an independent service and is not a government agency. We republish official NHTSA recall data; we don’t issue, amend or administer recalls.