Recall 18V504 affects 921 2015-2018 Cummins Power Generation generator sets for miswired remote emergency-stop controls. Repair is free at any franchised Cummins Power Generation dealer.
Cummins Power Generation is recalling 921 2015-2018 Generator Set trailers because incorrectly wired remote emergency stop and remote start connections leave the remote stop unable to shut down the generator as intended. If the remote E-stop does not work as expected, injury risk rises; the Cummins Power Generation dealer repair is free.
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What's wrong?
The remote emergency stop circuit on the 2015-2018 Cummins Power Generation Generator Set is wiring that lets an operator shut the trailer-mounted generator down from an external stop switch. The remote start circuit does the opposite job, letting the generator start from a remote control point. Both circuits run through the switch connection panel, so each wire has to land on the correct terminal.
On affected generator sets, the remote E-stop wiring and remote start wiring were reversed during panel assembly. That means the remote stop connection does not send the shutdown signal the way it was designed to. If the generator needs to be stopped from the remote switch, it does not shut down as intended.
This defect is confirmed by function testing, not by a dashboard warning light. Connect a remote E-stop switch and verify that it actually shuts the generator down. If the remote stop does not work, the switch panel wiring needs inspection and correction.
Who's affected?
Spans the 2015-2018 Generator Set line, all tied to the same wiring component.
| 2015 Cummins Power Generation Generator Set | wiring |
|---|---|
| 2016 Cummins Power Generation Generator Set | wiring |
| 2018 Cummins Power Generation Generator Set | wiring |
| 2017 Cummins Power Generation Generator Set | wiring |
| Units affected | 921 |
| Field incidents | NHTSA has logged no field incidents to date. |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific vehicle is included.
What's the safety risk?
If the remote E-stop does not shut the generator set down when activated, people near the unit face a higher risk of injury. Test the remote E-stop switch before use and stop using the remote function if shutdown does not work as expected. Repair is free at any franchised Cummins Power Generation dealer.
What should I do?
- Check your VIN to confirm your 2015-2018 Cummins Power Generation Generator Set is included in this recall.
- Contact a franchised Cummins Power Generation dealer to schedule the free remote E-stop and remote start switch-panel inspection, with repair or replacement if the wiring is wrong.
- Bring the recall notice if Cummins Power Generation mailed one. If not, reference recall number 18V504 when you call.
- Avoid relying on the remote E-stop as the only shutdown method until the inspection and repair are complete.
- Call Cummins Power Generation customer service at 1-800-286-6467 with questions about the free repair.
What happens at the repair
At the dealer, a Cummins Power Generation technician inspects the remote emergency stop function and checks the remote E-stop and remote start switch panel wiring. If the panel or function fails inspection, the technician repairs or replaces the remote E-stop/remote start switch panel. The recall repair is free, with parts and labor covered. Out-of-pocket repairs before the recall notice are handled through the manufacturer's limited warranty, not through a separate reimbursement program. Ask the service desk how warranty coverage applies if you have prior repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| July 31, 2018 | NHTSA published the recall |
|---|---|
| September 21, 2018 | Owner notification mailed |
| September 24, 2018 | Dealer notification began |
| September 24, 2018 | Dealer notification ended |
| September 24, 2018 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| September 24, 2018 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 18V504?
Recall 18V504 covers 921 2015-2018 Cummins Power Generation Generator Set trailers with remote emergency stop and remote start connections that were wired incorrectly. The remote stop function can fail to shut down the generator as intended, increasing injury risk. Cummins dealers will inspect and repair the switch panel for free.
What should I do if my 2015-2018 Cummins Power Generation Generator Set is on this recall?
Check your VIN to confirm your specific generator set is included in recall 18V504. If it is, contact a Cummins Power Generation dealer to schedule the remote E-stop inspection and repair. Reference recall number 18V504 when you call. Cummins customer service is available at 1-800-286-6467.
Is the recall repair free?
Yes. Federal recall law requires manufacturers to repair safety defects at no cost, and Cummins will inspect the remote E-stop function for free. If the switch panel needs work, the dealer will repair or replace the remote E-stop/remote start switch panel at no charge.
What is the safety risk?
The risk is that the generator does not shut down when the remote E-stop is activated. If the unit keeps running when an operator expects it to stop, injury risk increases. Confirm the VIN, then arrange the free dealer inspection and repair before relying on the remote stop function.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/18V504000 |
|---|---|
| Cummins Power Generation customer service | 1-800-286-6467 |
| NHTSA recall # | 18V504 |
| NHTSA recall # (full) | 18V504000 |
Source documents
-
Download Recall Investigation Document (PDF) (PDF) - Download Owner Notification Letter (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 25, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →