Jayco Fifth Wheel Seismic, model year 2026. Filed by Jayco, Inc. and reported to NHTSA on 2 July 2026. 205 vehicles potentially affected.
What the notice says Jayco, Inc. (Jayco) is recalling certain 2026 Seismic fifth toy haulers. The inverter may have been installed without a grounding connection.
Is your vehicle included? Check with your VIN at NHTSA, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.
Jayco's own number for this recall: 9901660. That is the number on the owner letter and on the dealer paperwork. 26V426 is the number NHTSA gave the same campaign, and the number this page is filed under. They are one recall, written two ways.
What owners ask about this recall
- Which vehicles does recall 26V426 cover?
- Jayco Fifth Wheel Seismic, model year 2026.
- What is wrong with them?
- Jayco, Inc. (Jayco) is recalling certain 2026 Seismic fifth toy haulers. The inverter may have been installed without a grounding connection.
- What can happen if it is not put right?
- The electrical system may overheat without a ground, increasing the risk of a fire. There is also an increased risk of injury from electrical shock.
- Is there a fix yet?
- Yes, and it is free. Dealers will install a ground wire, free of charge. Owner notification letters were mailed July 10, 2026. Owners may contact Jayco customer service at 1-800-283-8267. Jayco's number for this recall is 9901660.
- What should I do now?
- Check your own vehicle by its VIN with NHTSA, which is the record to act on. Jayco calls this recall 9901660, which is the number on the owner letter and the dealer paperwork.
Answered from the register this site holds. NHTSA is the record to act on.
What the authority says can happen if this is not fixed: “The electrical system may overheat without a ground, increasing the risk of a fire. There is also an increased risk of injury from electrical shock.”
affected
in the notice
caught
| Campaign | 26V426 |
|---|---|
| Filed by | Jayco, Inc. |
| System at fault | Equipment:Recreational Vehicle/Trailer:120/240 Vac Electrical System:Inverter |
| Reported to NHTSA | 2 July 2026 |
| Model years | 2026-2026 |
| Vehicles named | JAYCO FIFTH WHEEL SEISMIC |
What the notice says today
The defect
Jayco, Inc. (Jayco) is recalling certain 2026 Seismic fifth toy haulers. The inverter may have been installed without a grounding connection.
The consequence
The electrical system may overheat without a ground, increasing the risk of a fire. There is also an increased risk of injury from electrical shock.
The remedy
Dealers will install a ground wire, free of charge. Owner notification letters were mailed July 10, 2026. Owners may contact Jayco customer service at 1-800-283-8267. Jayco's number for this recall is 9901660.
What it said before
Nothing has changed while we have been watching. We last read the wording of this campaign on 17 September 2026, and it matched the copy we already held.
That copy hashes to ce890909bd97aee1217b6ca7de2de771…, so if it is ever edited the change is provable rather than a matter of memory.
This is one of 2,632 notices in the record whose component field names equipment. Across that group the median wait before owners were written to was 29 days.
Last checked . No change has been recorded in the wording.
The same recall in other countries
This campaign carries a manufacturer code that also appears in another country’s register, which means the same defect was recalled there too.
- Canada: Transport Canada recall 2026322, recorded 30 June 2026 (within a week of the American filing)
Matched on 9901660, the manufacturer’s own number for this campaign, which is the only field the registers share. Exact match, nothing paired on brand and date. The two dates are adjacent instruments rather than the same one, so a difference of a day or two means nothing.
How often the two countries file on the same day · The European alerts
The models named here, across their whole recall history
How to cite this record
Quoting the wording on this page means quoting a version, so the date belongs in the citation:
CarsMultiverse, recall 26V426, wording as read on 17 September 2026. https://carsmultiverse.com/recall/26v426/
The copy quoted above hashes to ce890909bd97aee1217b6ca7de2de771…. If the notice is reworded later, that fingerprint will not match, which is how a reader checks that the quotation was of the version we say it was.
The cross-border matches used on this site are deposited as a citable dataset: doi:10.5281/zenodo.22087136. The recall wording itself is published by the national authority named above and is theirs, not ours.
The recall record and its wording are published by the US National Highway Traffic Safety Administration and are US Government public domain. The dated archive, the comparison and any before-and-after above are CarsMultiverse. How fresh every engine behind this page is, is public on the status page. To check a specific vehicle, use NHTSA’s own VIN lookup.
Other Jayco notices we hold
- 26V552: 2027 Heartland Bighorn recreational trailers
- 26V518: 2027 Jayco Eagle, Eagle SLE, and Heartland Sundance fifth wheel trailers
- 26V484: 2025 Entegra Reatta XL, Reatta, 2026 Cornerstone Reserve, 2024-2026 Cornerstone, Aspire, and Anthem motorhomes built on certain Spartan K1, K2, and K4 chassis
- 26V483: 2026 Entegra Anthem motorhomes
- 26V427: 2026 Heartland Cyclone travel trailers and Cyclone fifth wheel trailers
- 26V416: 2027 Entegra Accolade and Jayco Seneca motorhomes
- 26V411: 2024 Jayco Alante and Entegra Vision recreational
- 26V361: 2026 Entegra Qwest SE, Condor, Jayco Granite Ridge, and Melbourne recreational
All 207 Jayco campaigns we hold · Every manufacturer in the record
The fingerprint of this notice
We take a SHA-256 of each of the three blocks of text the authority publishes and keep the first eight characters. As we last read campaign 26V426 on 23 August 2026, they were:
- Defect summary
ce74d249 - Consequence
39046d0a - Remedy
f8d2bac8
We first read this notice on 21 August 2026. It has not moved since. If it ever does, these characters will not match, and the change will be dated here.
The wording we hold for 26V426 · how the whole register is watched
This notice names one vehicle among several registers that have written about it. Every notice this site holds for the Jayco Seismic, in all seven, is kept on that vehicle's own page, with the newest in each.
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Owners of these cars
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