Recall 14V026 affects 22 2014 Kenworth T370 chassis for transmission software that can raise engine speed during downshifts. Free update at Eaton service facilities.
Kenworth is recalling 22 2014 T370 chassis under recall 14V026 because software in Eaton hybrid automated transmissions can raise engine speed during downshifts without the driver's input. That engine-speed jump raises the risk of unintended acceleration and a crash, and the Kenworth dealer repair will be free once available.
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What's wrong?
The 2014 Kenworth T370 uses an Eaton hybrid automated transmission, a drivetrain system that uses software to manage gear changes instead of a driver-operated clutch pedal. During a downshift, that software is supposed to choose the lower gear and match engine speed to the change. The driver still controls vehicle speed with the accelerator and brake pedals.
On the recalled T370 chassis, the transmission control software has the wrong behavior during some downshifts. It can raise engine speed without the driver's input. That means the truck responds as if the accelerator was pressed even though the driver did not ask for more engine power.
There is no warning sign before failure. The first thing a driver notices is the engine speed rising during a downshift when their foot has not requested it.
Who's affected?
| 2014 Kenworth T370 | automatic transmission |
|---|---|
| Units affected | 22 |
Not every 2014 Kenworth T370 truck is on the list. Check your VIN to confirm whether your specific truck is included.
What's the safety risk?
An unexpected rise in engine speed can cause unintended acceleration and increase the risk of a crash. There is no warning sign before the engine speed increase, so treat any unexpected acceleration as a reason to slow, pull over where safe, and arrange service. Repair will be free at any franchised Kenworth dealer once available.
What should I do?
- Check your VIN to confirm your 2014 Kenworth T370 is included in this recall.
- Contact Kenworth customer service at 1-425-468-7400 for current repair instructions before scheduling service.
- Schedule the free Eaton hybrid transmission software update that corrects unwanted engine-speed increases during downshifts.
- Reference recall number 14V026 and Kenworth recall 14KWF when you call.
- Drive cautiously until the software update is complete. Leave extra space and be ready for unexpected engine speed changes during downshifts.
What happens at the repair
The recall record says PACCAR began this remedy on March 11, 2014, but the current remedy status is not listed here. What is known is the repair: at an Eaton authorized service facility, a Kenworth technician updates the hybrid transmission software that controls downshifts. The final dealer repair will be free once available. The software update is meant to stop the transmission from raising engine speed during downshifts without driver input.
Timeline
| January 30, 2014 | NHTSA published the recall |
|---|---|
| March 11, 2014 | Owner notification mailed |
Frequently asked questions
What is recall 14V026?
Recall 14V026 covers 22 2014 Kenworth T370 chassis with Eaton hybrid automated transmissions. The transmission software can raise engine speed during downshifts without driver input, which can cause unintended acceleration and increase crash risk. Eaton authorized service facilities update the software for free.
What should I do if my 2014 Kenworth T370 is on this recall?
Check your VIN to confirm your specific chassis is included in recall 14V026. If it is, contact a Kenworth dealer or Eaton authorized service facility to schedule the hybrid transmission software update. Reference recall number 14V026 when you call. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and the recall remedy states that Eaton authorized service facilities update the hybrid transmission software free of charge.
What is the safety risk?
The safety risk is unintended acceleration during downshifts. The affected software can raise engine speed without the driver's input, which increases crash risk. If your VIN is included, schedule the free software update and ask the service facility what driving guidance applies before your appointment.
When did the recall repair start?
The recall repair began on March 11, 2014. Kenworth owners with included T370 chassis were directed to an Eaton authorized service facility for the free hybrid transmission software update. Check your VIN if you never received a notice or bought the chassis used.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/14V026000 |
|---|---|
| Kenworth customer service | 1-425-468-7400 |
| NHTSA recall # | 14V026 |
| NHTSA recall # (full) | 14V026000 |
Source documents
-
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 →