Mack recall 26V-515: Marker Lights May Fail to Illuminate/FMVSS 108
Marker lights that fail to illuminate can reduce visibility, increasing the risk of a crash.
Campaign facts
- NHTSA campaign
- 26V515000 (26V-515)
- Manufacturer number
- SC0498
- Filed by
- Mack Trucks, Inc.
- Report received
- August 6, 2026
- Component
- Exterior lighting
- Vehicles potentially affected
- 513
- Model years
- 2027
- Built between
- April 27, 2026 and June 19, 2026
- Recall initiated by
- The manufacturer
- Safety standard
- FMVSS 108
What is wrong
Mack Trucks, Inc. (Mack) is recalling certain 2027 Anthem AN (4) and Pioneer PR (4) vehicles. The center roof marker lights may fail to illuminate. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
The risk
Marker lights that fail to illuminate can reduce visibility, increasing the risk of a crash.
Why lighting defects matter: Brake lamps and turn signals tell other drivers what you are about to do; when they fail, that warning is lost.
The remedy
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.
About the lighting
Lighting campaigns cover headlamps, tail and brake lamps, turn signals, reflectors and the switches that control them.
Vehicles covered by campaign 26V-515
- Mack Anthem An (4) 2027
- Mack Pioneer Pr (4) 2027
What to do
- Enter your VIN in NHTSA’s lookup (below) to confirm that your vehicle is included and that the repair has not already been done.
- Call a dealer for the brand and book the repair. Quote NHTSA campaign 26V-515 and the manufacturer’s number SC0498.
- Walk around the vehicle with the lights on and check each lamp, including brake lamps and turn signals.
- Safety recall repairs are carried out free of charge by the manufacturer’s dealers. If you already paid for this repair yourself, ask the manufacturer about reimbursement and keep your receipt.
Check by VIN
A campaign rarely covers every vehicle of a model year. Enter your 17-character VIN to find the recall campaigns filed for your make, model and model year. The VIN is on the driver’s side of the dashboard (visible through the windshield), on the door-jamb label, and on your registration and insurance documents.
Is a recall still open on your vehicle? Only NHTSA’s official VIN check can say whether a campaign applies to your exact vehicle and whether the repair has already been done.
Your VIN is decoded with NHTSA’s public vPIC service to identify the make, model and year. It is not stored and is not added to any page address.
The official record
This page reproduces the campaign as filed with NHTSA. The NHTSA record is authoritative — if anything here differs, follow the agency.
Open campaign 26V-515 on NHTSA.gov