Multiplex Hc Relay Card, model year 9999. Filed by Firefly Integrations, LLC and reported to NHTSA on 28 September 2023. 113 vehicles potentially affected.
What the notice says Firefly Integration, LLC (Firefly) is recalling certain Multiplex HC Relay Cards with part number, 70516J. The relays may be damaged, which can result in an electrical short circuit.
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.
What owners ask about this recall
- Which vehicles does recall 23E071 cover?
- Multiplex HC Relay Card.
- What is wrong with them?
- Firefly Integration, LLC (Firefly) is recalling certain Multiplex HC Relay Cards with part number, 70516J. The relays may be damaged, which can result in an electrical short circuit.
- What can happen if it is not put right?
- An electrical short circuit increases the risk of a fire.
- Is there a fix yet?
- Yes, and it is free. Firefly will remove the 2, 4, and 6 output wires from the connector on the C25, and update the files on the touch screen, free of charge. Owner notification letters were mailed November 15, 2023. Owners may contact Firefly customer service at 1-574-825-4600.
- What should I do now?
- Check your own vehicle by its VIN with NHTSA, which is the record to act on.
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: “An electrical short circuit increases the risk of a fire.”
affected
in the notice
caught
| Campaign | 23E071 |
|---|---|
| Filed by | Firefly Integrations, LLC |
| System at fault | Equipment:Electrical |
| Reported to NHTSA | 28 September 2023 |
| Model years | 9999-9999 |
| Vehicles named | MULTIPLEX HC RELAY CARD |
What the notice says today
The consequence
An electrical short circuit increases the risk of a fire.
The remedy
Firefly will remove the 2, 4, and 6 output wires from the connector on the C25, and update the files on the touch screen, free of charge. Owner notification letters were mailed November 15, 2023. Owners may contact Firefly customer service at 1-574-825-4600.
What it said before
This campaign is in the register but not yet in the dated wording archive, so we cannot yet say whether its text has moved. It enters the archive on the next pass.
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.
How to cite this record
Quoting the wording on this page means quoting a version, so the date belongs in the citation:
CarsMultiverse, recall 23E071, wording as read on 16 September 2026. https://carsmultiverse.com/recall/23e071/
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 Multiplex notices we hold
- 25E009: model G12 Multiplex Electronic Control Module (ECM) units, part number 130010113A, installed in Thor Motor Coach
- 24E043: Multiplex G9 units used for controlling equipment and accessories in motorhomes
- 22E070: Multiplex Electronic Control Module (ECM), part number 7000701
- 20E058: Multiplex G9 units used for controlling equipment and accessories in motorhomes
All 5 Multiplex 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 23E071 on 23 August 2026, they were:
- Defect summary
f49d36da - Consequence
1745ecfe - Remedy
72415c4a
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 23E071 · how the whole register is watched
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Owners of these cars
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