Mack Anthem An (4), Mack Pioneer Pr (4), model year 2027. Filed by Mack Trucks, Inc. and reported to NHTSA on 6 August 2026. 513 vehicles potentially affected.
What the notice says 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."
Is your vehicle included? Check with your VIN at NHTSA, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.
Mack's own number for this recall: SC0498. That is the number on the owner letter and on the dealer paperwork. 26V515 is the number NHTSA gave the same campaign, and the number this page is filed under. They are one recall, written two ways.
What owners ask about this recall
- Which vehicles does recall 26V515 cover?
- Mack Anthem An (4), Mack Pioneer PR (4), model year 2027.
- What is wrong with them?
- 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.
- What can happen if it is not put right?
- Marker lights that fail to illuminate can reduce visibility, increasing the risk of a crash.
- Is there a fix yet?
- Yes, and it is free. 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.
- What should I do now?
- Check your own vehicle by its VIN with NHTSA, which is the record to act on. Mack calls this recall SC0498, which is the number on the owner letter and the dealer paperwork.
Answered from the register this site holds. NHTSA is the record to act on.
What the authority says can happen if this is not fixed: “Marker lights that fail to illuminate can reduce visibility, increasing the risk of a crash.”
affected
in the notice
caught
| Campaign | 26V515 |
|---|---|
| Filed by | Mack Trucks, Inc. |
| System at fault | Exterior Lighting |
| Reported to NHTSA | 6 August 2026 |
| Model years | 2027-2027 |
| Vehicles named | MACK ANTHEM AN (4), MACK PIONEER PR (4) |
What the notice says today
The consequence
Marker lights that fail to illuminate can reduce visibility, increasing the risk of a crash.
The 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 it said before
This campaign is in the register but not yet in the dated wording archive, so we cannot yet say whether its text has moved. It enters the archive on the next pass.
This is one of 663 notices in the record whose component field names exterior lighting. Across that group the median wait before owners were written to was 43 days.
Last checked . 1 change recorded in the wording since we started reading it daily, the latest on 24 September 2026.
Changed since our daily reading began
24 September 2026: the remedy was rewritten. Before: 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.
After: 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.
Side by side
The models named here, across their whole recall history
How to cite this record
Quoting the wording on this page means quoting a version, so the date belongs in the citation:
CarsMultiverse, recall 26V515, wording as read on 17 September 2026. https://carsmultiverse.com/recall/26v515/
The cross-border matches used on this site are deposited as a citable dataset: doi:10.5281/zenodo.22087136. The recall wording itself is published by the national authority named above and is theirs, not ours.
The recall record and its wording are published by the US National Highway Traffic Safety Administration and are US Government public domain. The dated archive, the comparison and any before-and-after above are CarsMultiverse. How fresh every engine behind this page is, is public on the status page. To check a specific vehicle, use NHTSA’s own VIN lookup.
Other Mack notices we hold
- 26V509: 2025 TerraPro trucks
- 26V351: 2026 Anthem (AN), 2026-2027 Pioneer PR (4), Pinnacle (PI/PN), Granite (GR), and 2027 Anthem AN (4)
- 26V261: 2025-2027 Pioneer (4) and 2026-2027 Anthem (4)
- 26V207: 2025-2027 Pioneer (4) and 2027 Anthem (4) trailers
- 26V139: 2022-2027 TerraPro trucks
- 26E055: Grote replacement marker lights with part number 78513681
- 25V867: 2010-2016 Granite (GU) trucks
- 25V803: 2026 Anthem (4) and 2025-2026 Pioneer
All 113 Mack campaigns we hold · Every manufacturer in the record
The fingerprint of this notice
We take a SHA-256 of each of the three blocks of text the authority publishes and keep the first eight characters. As we last read campaign 26V515 on 17 September 2026, they were:
- Defect summary
9e453b64 - Consequence
c5e40644 - Remedy
297d7ba0
We first read this notice on 21 August 2026. It has not moved since. If it ever does, these characters will not match, and the change will be dated here.
The wording we hold for 26V515 · how the whole register is watched
This notice names one vehicle among several registers that have written about it. Every notice this site holds for the Mack Pioneer PR (4), in all seven, is kept on that vehicle's own page, with the newest in each.
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Owners of these cars
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