Mack Recalls 513 Trucks Over Roof Marker Lights

Mack recalls 513 trucks because the center roof marker lights may not illuminate, which makes them fail FMVSS 108. The VINs are public now; letters go out in October.

Mack Recalls 513 Trucks Over Roof Marker Lights

Mack is recalling 513 trucks because five small lights on the roof may not come on. That sounds minor until you read which rule they break.

Campaign 26V515000 covers certain 2027 Anthem AN (4) and Pioneer PR (4) vehicles. The center roof marker lights may fail to illuminate, and NHTSA's filing does not describe that as a nuisance. It says the vehicles fail to comply with Federal Motor Vehicle Safety Standard No. 108, the standard that governs lamps, reflective devices and associated equipment.

Check your VIN now rather than waiting for the letter. We explain below why the calendar matters here.

What the filing actually says

  • Manufacturer: Mack Trucks, Inc.
  • NHTSA campaign: 26V515000, received August 6, 2026
  • Units potentially affected: 513
  • Defect: the center roof marker lights may fail to illuminate
  • Noncompliance: FMVSS No. 108
  • Consequence, in NHTSA's words: marker lights that fail to illuminate can reduce visibility, increasing the risk of a crash

The fix, and who pays

Dealers will replace the center roof marker light free of charge. Mack's internal number for this recall is SC0498, and customer service is at 1-800-866-1177.

There is no cost to the owner and no deadline to lose. What there is, is a gap.

The gap between August and October

Owner notification letters are expected to be mailed October 5, 2026. But the VINs involved have been searchable on NHTSA.gov since August 13, 2026.

That is roughly seven weeks in which a truck can be on the recall list while its owner has no idea, simply because the mail has not moved yet. If the unit is leased, recently bought, or titled to a company address that is not where the driver lives, the letter can take even longer to reach the person who actually drives it.

You do not need the letter. You need seventeen characters.

Why a marker light is not a small thing

Roof marker lights exist so that another driver, at night or in weather, can read the width and height of what is in front of them before they can read anything else about it. That is the entire job.

A tractor with a dark row on the roof still looks like a vehicle. It just stops looking like a tall, wide vehicle, and it stops looking that way to the traffic coming up behind and to the side. That is why the standard treats them as required equipment rather than trim.

It also means the failure is invisible from the driver's seat. Nobody sees their own roof lights while driving. You see them on a walk-around, at night, with the marker lights switched on — and almost nobody does that walk-around in the dark.

That blind spot is the reason this recall is worth five minutes even if you do not own a Mack. A lamp that fails quietly, in a place the driver never looks, on a part that only matters to somebody else, is a category of problem that repeats across every brand and every model year. The recall is the reminder; the habit is the fix.

What to do this week

  • Run the VIN. NHTSA.gov has had these VINs since August 13. It takes a minute per unit.
  • If you run a small fleet, run all of them. A recall list is per vehicle, not per model year, and two trucks off the same lot can land differently.
  • Call the dealer with SC0498 in hand. Naming the campaign number saves the first ten minutes of every service call.
  • Check the roof at night, whatever your brand. Turn on the marker lights and walk to the front. This particular recall is Mack's; a burned-out marker light is everybody's.
  • Do not wait for October. The letter confirms what the VIN lookup already tells you today.

The preventive read

Recalls get treated as paperwork that arrives in the mail. This one is a good example of why that framing costs money: the information is public seven weeks before the envelope, the repair is free, and the part is one nobody checks because nobody can see it from the seat.

Running in Houston or Dallas? The Truck Savers™ looks at lamps and wiring on every inspection — the same walk-around that catches your suspension catches a dark marker light.

This is general information, not legal advice. Recall coverage is determined by VIN; confirm yours with the manufacturer or on NHTSA.gov.

Original source: NHTSA recall campaign 26V515000, Mack Trucks, Inc.