Recall 15V620 covers 273 2016 Freightliner vehicles with ECMs that short and stall the engine without warning. Repair is free at any franchised Freightliner dealer.
Freightliner is recalling 273 2016 trucks and buses, including Cascadia, Business Class M2, Saf-T-Liner C2, 4700, and 4900 vehicles, because the Cummins engine control module can short circuit, blow a fuse, and stall the engine without warning. A sudden stall increases crash risk, and Freightliner dealers will complete the recall repair free of charge.
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What's wrong?
The engine control module is the computer that keeps the Cummins diesel engine running. It reads engine signals and sends commands for fuel delivery, engine timing, and other basic operating functions. On affected 2016 Freightliner trucks, buses, and walk-in vans, that module is part of the ignition and engine control system.
The problem is inside certain Cummins ISB6.7, ISL9, ISX12, and ISX15 engine control modules. The module can short circuit, which can blow the fuse that supplies power to it. Once that fuse opens, the computer loses the power it needs to control the engine. The result is an engine stall without warning.
There is no warning sign before failure. The driver gets no advance symptom from the recall record before the engine shuts down.
Who's affected?
Covers 9 model lines, with engine and ignition module components listed for each.
| 2016 Freightliner 122SD | Engine |
|---|---|
| 2016 Freightliner 122SD | electrical system |
| 2016 Freightliner MT55 | electrical system |
| 2016 Freightliner MT55 | Engine |
| 2016 Freightliner Business Class M2 | electrical system |
| 2016 Freightliner Business Class M2 | Engine |
| 2016 Freightliner 114SD | electrical system |
| 2016 Freightliner 114SD | Engine |
| 2016 Thomas Built Buses Saf-T-Liner C2 | electrical system |
| 2016 Thomas Built Buses Saf-T-Liner C2 | Engine |
| 2016 Freightliner 108SD | electrical system |
| 2016 Freightliner 108SD | Engine |
| 2016 Freightliner Cascadia | electrical system |
| 2016 Freightliner Cascadia | Engine |
| 2016 Western Star 4700 | electrical system |
| 2016 Western Star 4700 | Engine |
| 2016 Western Star 4900 | electrical system |
| 2016 Western Star 4900 | Engine |
| Units affected | 273 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific vehicle is included.
What's the safety risk?
An engine that stalls without warning can leave the driver without expected power in traffic and increases the risk of a crash. If your VIN is included, schedule the ECM replacement soon and use extra space in traffic until it is fixed. Repair is free at any franchised Freightliner dealer.
What should I do?
- Check your VIN to confirm your 2016 Freightliner 122SD, MT55, Business Class M2, 114SD, Saf-T-Liner C2, 108SD, Cascadia, 4700, or 4900 is included in this recall.
- Contact a franchised Freightliner dealer to schedule the free ECM replacement that fixes the short-circuit condition that can stall the engine without warning.
- Bring the recall notice if you have it. If not, reference recall number 15V620 and Freightliner recall FL-690 when you call.
- Drive cautiously until the repair is complete. If the engine stalls, move out of traffic when safe and call the dealer for guidance.
What happens at the repair
At the dealer, a Freightliner technician replaces the engine control module, or ECM, that can short circuit and blow a fuse. The replacement parts and labor are covered by the recall at no charge. Out-of-pocket repairs already paid are handled through the manufacturer's limited warranty, not through a separate reimbursement program, because the source states a product failure before owner notification would have been replaced under warranty. Ask the service desk how warranty coverage applies if you have repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| October 2, 2015 | NHTSA published the recall |
|---|---|
| October 22, 2015 | Owner notification mailed |
| November 28, 2015 | Dealer notification began |
| November 28, 2015 | Dealer notification ended |
| November 28, 2015 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 15V620?
Recall 15V620 covers 273 2016 Freightliner trucks and buses with certain Cummins engines. The engine control module can short circuit, blow a fuse, and stall the engine without warning, increasing crash risk. Freightliner dealers will replace the ECM for free.
What should I do if my 2016 Freightliner 122SD, MT55, Business Class M2, 114SD, Saf-T-Liner C2, 108SD, Cascadia, 4700, or 4900 is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 15V620. If it is, contact a franchised Freightliner dealer to schedule the ECM replacement. Reference recall number 15V620 or Freightliner recall FL-690 when you call. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires manufacturers to repair the defect at no cost, and Freightliner dealers will replace the affected engine control module free of charge. Parts and labor are covered for vehicles included in recall 15V620.
What is the safety risk?
The safety risk is an engine stall without warning. If the ECM short circuits and blows a fuse, the engine can stall while the vehicle is moving, increasing crash risk. Confirm your VIN, then schedule the free ECM replacement if your vehicle is included.
What warning signs should I watch for?
There is no warning sign before failure in the recall filing. The ECM short circuit can blow a fuse and stall the engine without warning. Because the year and model are not enough, use the VIN check to confirm whether this specific recall applies.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/15V620000 |
|---|---|
| Freightliner customer service | 1-800-745-8000 |
| NHTSA recall # | 15V620 |
| NHTSA recall # (full) | 15V620000 |
Source documents
-
Download Misc. Document (PDF) - Download Recall Report (PDF)
- Download Quarterly Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 31, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →