Recall 21V686 affects 1,157 2021-2022 Highland Ridge Tt recreational vehicles for propane regulator overpressure. Repair is free at any franchised Highland Ridge Tt dealer.
Highland Ridge Tt is recalling 1,157 2021-2022 Open Range, Olympia, and Mesa Ridge recreational vehicles equipped with Winntec model 6020 two-stage propane regulators. A failed regulator can raise propane pressure and enlarge appliance flames, increasing fire risk; Highland Ridge Tt dealers will replace the regulator free of charge.
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What's wrong?
The Winntec model 6020 two-stage propane regulator on these 2021-2022 Highland Ridge Tt recreational vehicles controls propane pressure before gas reaches the appliances. The first stage reduces tank pressure, and the second stage brings it down again so the furnace, water heater, stove, and other propane equipment receive a steady supply.
On recalled Open Range, Open Range Ultra Lite, Open Range Light, Silverstar Limited, Mesa Ridge Lite, Silverstar Lite, Olympia, and Mesa Ridge units, the second stage valve seat can stop sealing correctly. The problem comes from inadequate mechanical lock that lets the seal move, or from rubber hoses releasing plasticizer that degrades the valve seal. When that happens, the regulator can fail to control propane flow and pressure, sending higher pressure downstream.
Owners can notice irregular appliance performance before the regulator is replaced. A propane smell at the regulator is another warning sign, because it indicates the regulator is venting due to high pressure.
Who's affected?
Covers both travel trailer and fifth-wheel Highland Ridge lines from 2021-2022, all using the same Winntec 2 Stage Propane Regulator.
| 2021 Highland Ridge Tt Open Range | Lpg systems |
|---|---|
| 2021 Highland Ridge Tt Open Range Ultra Lite | Lpg systems |
| 2021 Highland Ridge Tt Open Range Light | Lpg systems |
| 2021 Highland Ridge Fw Silverstar Limited | Lpg systems |
| 2021 Highland Ridge Tt Mesa Ridge Lite | Lpg systems |
| 2021 Highland Ridge Tt Silverstar Lite | Lpg systems |
| 2022 Highland Ridge Tt Open Range | Lpg systems |
| 2021 Highland Ridge Tt Olympia | Lpg systems |
| 2022 Highland Ridge Tt Olympia | Lpg systems |
| 2021 Highland Ridge Tt Mesa Ridge | Lpg systems |
| Units affected | 1,157 |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific trailer is included.
What's the safety risk?
Increased propane pressure can make appliance flames larger and increase the risk of a fire. Irregular appliance performance or propane smell at the regulator is a warning sign to stop using the propane system and call the dealer before using gas appliances again. Repair is free at any franchised Highland Ridge Tt dealer.
What should I do?
- Check your VIN to confirm your 2021-2022 Highland Ridge Tt RV is included in this recall.
- Contact a franchised Highland Ridge Tt dealer to schedule the free propane regulator replacement and leak test.
- Bring the recall notice if Highland Ridge Tt mailed one. If not, reference recall number 21V686 when you call.
- Avoid using propane appliances if flames look enlarged, and keep the propane system off until the dealer checks it.
What happens at the repair
At the dealer, a Highland Ridge Tt technician replaces the propane regulator and tests the propane system for leaks. The replacement parts and labor are free under recall 21V686. Because the regulator can let propane pressure increase, the leak test matters before the vehicle goes back into service. If you already paid for this regulator repair before the recall notice, Highland Ridge's reimbursement plan on file gives you a way to request repayment. Bring repair paperwork and payment documentation to the service desk.
| Reimbursement | Reimbursement available |
|---|
Timeline
| September 2, 2021 | NHTSA published the recall |
|---|---|
| September 2, 2021 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| November 1, 2021 | Dealer notification began |
| November 1, 2021 | Dealer notification ended |
| November 1, 2021 | Owner notification mailed |
| November 1, 2021 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 21V686?
Recall 21V686 covers 1,157 2021-2022 Highland Ridge Tt recreational vehicles with Winntec model 6020 two-stage propane regulators. The regulator can fail and increase propane pressure, which can enlarge gas-appliance flames and increase fire risk. Dealers will replace the regulator and test the propane system for leaks for free.
What should I do if my 2021-2022 Highland Ridge Tt Open Range, Open Range Ultra Lite, Open Range Light, Silverstar Limited, Mesa Ridge Lite, Silverstar Lite, Olympia, or Mesa Ridge is on this recall?
Check your VIN to confirm your specific recreational vehicle is included in recall 21V686. If it is, contact a franchised Highland Ridge Tt dealer to schedule the propane regulator replacement and propane system leak test. Reference recall number 21V686 when you call.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost. Highland Ridge Tt dealers will replace the Winntec propane regulator and test the propane system for leaks free of charge.
What is the safety risk?
The safety risk is fire. If the propane regulator fails, propane pressure can increase and enlarge flames in gas appliances. Until the repair is complete, stop using propane appliances if you notice abnormal flame behavior, propane odor, or other signs of a propane system problem.
When were owners notified about recall 21V686?
Highland Ridge mailed owner notification letters on November 1, 2021. If you bought the recreational vehicle used or never received a letter, the VIN decides whether recall 21V686 applies. Check your VIN, then call a franchised Highland Ridge Tt dealer if your vehicle is included.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/21V686000 |
|---|---|
| Highland Ridge Tt customer service | 1-260-768-7771 |
| NHTSA recall # | 21V686 |
| NHTSA recall # (full) | 21V686000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Recall Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Misc. Document (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →