Recall 13V612 affects 5,087 2014 Kenworth trucks because STT lamp bulbs can fall out. Repair is free at any franchised Kenworth dealer.
Kenworth is recalling 5,087 2014 T170, T270, T370, and other trucks because the stop/tail/turn lamp housing can shrink and let the bulb fall out of its retention ring. If the lamp goes dark, nearby drivers lose the stop, tail, or turn signal cue, increasing crash risk; the Kenworth dealer repair will be free once available.
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What's wrong?
The stop, tail, and turn lamp on these 2014 Kenworth trucks is the rear lighting unit that shows when the truck is braking, turning, or running with its lights on. It uses a bulb held in place by a mounted retention ring inside a plastic lamp housing, so the light stays aimed and visible from behind.
On affected T170, T270, T370, T440, T470, T660, T680, T700, T800, T880, C500, and W900 trucks, the plastic housing shrinks enough that it no longer holds the bulb correctly. The bulb falls out of the retention ring, leaving the stop, tail, or turn lamp unlit. That means the truck no longer meets the lighting standard for those rear signals.
There is no warning sign before failure. The first clue is an unlit rear lamp found during a walk-around inspection, at service, or by someone behind the truck.
Who's affected?
The scope spans Kenworth T-series, W900, and C500 truck lines, all tied to tail-light equipment.
| 2014 Kenworth T170 | Tail lights |
|---|---|
| 2014 Kenworth T270 | Tail lights |
| 2014 Kenworth T700 | Tail lights |
| 2014 Kenworth T470 | Tail lights |
| 2014 Kenworth T680 | Tail lights |
| 2014 Kenworth T880 | Tail lights |
| 2014 Kenworth T370 | Tail lights |
| 2014 Kenworth T660 | Tail lights |
| 2014 Kenworth T800 | Tail lights |
| 2014 Kenworth W900 | Tail lights |
| 2014 Kenworth T440 | Tail lights |
| 2014 Kenworth C500 | Tail lights |
| Units affected | 5,087 |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific truck is included.
What's the safety risk?
A failed stop, tail, or turn lamp leaves other drivers without a clear signal for braking or turning, which increases crash risk. Before driving, check that the rear lamps illuminate and schedule the recall repair soon if your VIN is included. Repair will be free at any franchised Kenworth dealer once available.
What should I do?
- Check your VIN to confirm your 2014 Kenworth T170, T270, T370, T440, T470, T660, T680, T700, T800, T880, C500, or W900 is included in this recall.
- Contact your nearest franchised Kenworth dealer and ask whether the STT lamp replacement is open for your VIN.
- Schedule the free STT lamp replacement that restores stop, tail, and turn signal illumination.
- Bring the recall notice if Kenworth mailed one. If not, reference recall number 13V612 when you call.
- Check the stop, tail, and turn lights before driving until the repair is complete.
What happens at the repair
At the dealer, a Kenworth technician replaces the defective Stop/Tail/Turn lamps with new lamps so the bulb stays in the mounted retention ring and the lamp illuminates. The source remedy says owner notification began on February 4, 2014, but this record does not list a current remedy status. The dealer repair will be free once available under the recall. When you call for service, use Kenworth recall number 13KWM and ask the dealer to confirm the lamp parts before the appointment.
Timeline
| December 5, 2013 | NHTSA published the recall |
|---|---|
| February 4, 2014 | Owner notification mailed |
Frequently asked questions
What is recall 13V612?
Recall 13V612 covers 5,087 2014 Kenworth trucks with Stop/Tail/Turn lamp housings that can shrink and let the bulb fall out of its retention ring. If the lamp does not illuminate, other drivers cannot see braking or turning intent, increasing crash risk.
What should I do if my 2014 Kenworth truck is on this recall?
Check your VIN to confirm your specific truck is included in recall 13V612. If it is, contact a franchised Kenworth dealer and ask for recall 13KWM. The dealer will replace the defective Stop/Tail/Turn lamps with new lamps.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost to the owner. For recall 13V612, a franchised Kenworth dealer replaces the defective Stop/Tail/Turn lamps with new lamps.
Which 2014 Kenworth models are included in recall 13V612?
Recall 13V612 includes certain 2014 Kenworth T170, T270, T700, T470, T680, T880, T370, T660, T800, W900, T440, and C500 trucks. The model name alone does not confirm coverage. Your VIN decides whether the recall applies.
Is it safe to drive a Kenworth truck with this tail light recall?
The recall does not include a do-not-drive order, but the defect affects how other drivers see your braking, tail, and turn signals. If your VIN is included, schedule the free lamp replacement and check exterior lighting before each trip until the dealer completes the repair.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/13V612000 |
|---|---|
| Kenworth customer service | 1-425-468-7400 |
| NHTSA recall # | 13V612 |
| NHTSA recall # (full) | 13V612000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Recall Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Quarterly Report (PDF)
- Download Defect / Noncompliance Notice (PDF) (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on June 2, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →