2027 Mack Anthem and Pioneer Recall: Roof Marker Lights

Mack is recalling 513 model-year 2027 Anthem AN (4) and Pioneer PR (4) trucks because their center roof marker lights may fail to illuminate. Missing marker-light illumination can reduce visibility and increase crash risk. The NHTSA campaign number is 26V515000.

What the recall means for owners

MACK: ANTHEM AN (4), PIONEER PR (4)

Dealers will replace the center roof marker light free of charge. NHTSA’s current record lists October 5, 2026 as the expected owner-notification mailing date. Mack’s campaign number is SC0498, which distinguishes this lighting recall from the separate TerraPro steering-fastener campaign.

Official record — checked September 16, 2026

• NHTSA recall ID: 26V515000
• Vehicles listed: MACK ANTHEM AN (4) (2027); MACK PIONEER PR (4) (2027)
• Potentially affected: 513
• Components: EXTERIOR LIGHTING
• Report received: August 6, 2026
• Owner notification: Owner notification letters expected to be mailed October 5, 2026.
• Defect: 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.”
• Safety consequence: Marker lights that fail to illuminate can reduce visibility, increasing the risk of a crash.
• Remedy: Dealers will replace the center roof marker light, free of charge. Owner notification letters are expected to be mailed October 5, 2026. 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.

What owners should do next

Ask a Mack dealer about the center roof marker-light replacement under SC0498. Check each truck by VIN because the recall applies to certain Anthem and Pioneer vehicles, not the entire Mack range.

Heavy-truck owners may also want to review the separate Volvo roof-marker-light recall where applicable.

Use the official NHTSA recall lookup or contact the manufacturer or an authorized dealer to confirm recall status for your vehicle’s VIN. A matching model and year alone do not establish that a vehicle is included or that its repair is complete.

Official sources

• Current NHTSA campaign data for 26V515000, checked September 16, 2026; supports the current facts and notification wording above.
• Manufacturer Part 573 report submitted Aug 06, 2026. The report records the filing at that date; later status updates are attributed to the current campaign data.

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