Recall 18V681 affects 335 2017-2019 Kzrv Sonic travel trailers for an LP manifold that can leak. Repair is free at any franchised Kzrv dealer.
Kzrv is recalling 335 2017-2019 Sonic travel trailers because the liquid propane manifold sits close to the axle tube and can be damaged, causing a propane leak. A leaking manifold can increase the risk of fire, and Kzrv dealers will complete the recall repair free of charge.
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What's wrong?
The liquid propane (LP) manifold on 2017-2019 Kzrv Sonic travel trailers is the distribution block for propane gas. It routes LP from the trailer's supply line toward propane-fueled equipment, so the line and manifold need protected clearance from the axle and frame as the trailer moves.
On affected Sonic trailers, the LP manifold was placed too close to the axle tube. That placement came from an engineering and production design error. With inadequate clearance, the axle tube can contact or damage the manifold during normal trailer movement. Once the manifold is damaged, propane can leak from the LP system.
Kzrv's filing lists no warning before this failure. There is no warning sign before failure, so an owner should not rely on a sound, light, or handling change to identify the problem before the manifold is damaged.
Who's affected?
Spans the 2017, 2018, and 2019 model years, with each scope tied to the recreational vehicle/trailer equipment component.
| 2018 Kzrv Sonic | Recreational vehicle/trailer |
|---|---|
| 2017 Kzrv Sonic | Recreational vehicle/trailer |
| 2019 Kzrv Sonic | Recreational vehicle/trailer |
| Units affected | 335 |
| Field incidents | NHTSA has logged 2 field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific trailer is included.
What's the safety risk?
A damaged LP manifold that leaks gas increases the risk of a fire. No warning sign is listed, so do not wait for a symptom before scheduling service. The dealer will relocate the LP manifold. Repair is free at any franchised Kzrv dealer.
What should I do?
- Check your VIN to confirm your 2017-2019 Kzrv Sonic is included in this recall.
- Contact a franchised Kzrv dealer to schedule the free LP manifold relocation that moves the propane manifold away from the axle tube.
- Bring the recall notice if Kzrv mailed one. If not, reference recall number 18V681 when you call.
- Ask the dealer about towing guidance before the repair if you see LP manifold damage or smell propane near the trailer.
What happens at the repair
At the dealer, a Kzrv technician relocates the LP manifold so it is no longer close to the axle tube. The work is meant to keep axle movement or contact from damaging the manifold and allowing propane to leak. The recall repair is free, with parts and labor covered. When you schedule service, ask the dealer to confirm that campaign 18V681 is open for your VIN and that the LP manifold relocation will be completed under the recall.
Timeline
| September 28, 2018 | NHTSA published the recall |
|---|---|
| November 16, 2018 | Owner notification mailed |
| November 19, 2018 | Dealer notification began |
| November 19, 2018 | Dealer notification ended |
| November 19, 2018 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| November 19, 2018 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 18V681?
Recall 18V681 covers 335 2017-2019 Kzrv Sonic travel trailers with an LP manifold placed close to the axle tube. Contact with the axle tube can damage the manifold, cause a propane leak, and increase fire risk. Dealers will relocate the LP manifold for free.
What should I do if my 2017-2019 Kzrv Sonic is on this recall?
Check your VIN to confirm your specific trailer is included in recall 18V681. If it is, contact a Kzrv dealer or Kzrv customer service at 1-800-768-4016 to schedule the LP manifold relocation. Reference recall number 18V681 when you call.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the recall defect at no cost. Kzrv's remedy says dealers will relocate the LP manifold free of charge, so parts and labor are covered for trailers included in recall 18V681.
What is the safety risk?
The safety risk is a propane leak near the trailer underbody. If the LP manifold is damaged by the axle tube and starts leaking, propane can create a fire risk. Confirm the VIN, then arrange the free manifold relocation through a Kzrv dealer.
What if I bought this Kzrv Sonic used?
The free recall repair still applies. Recall coverage follows the trailer, not the first owner. If you never received the owner notice that began on November 16, 2018, check your VIN and reference recall number 18V681 when you contact a Kzrv dealer.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/18V681000 |
|---|---|
| Kzrv customer service | 1-800-768-4016 |
| NHTSA recall # | 18V681 |
| NHTSA recall # (full) | 18V681000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (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 →