Recall 17V544 covers 124 2010-2011 Thor Motor Coach motorhomes with Iota ITS-50R transfer switches that can overheat. Repair is free at franchised Thor Motor Coach dealers.
Thor Motor Coach is recalling 124 2010-2011 Hurricane, Serrano, and Windsport motorhomes because the Iota ITS-50R transfer switch can fail under elevated electrical loads in higher temperatures. The switch can overheat and increase the risk of a fire, and Thor Motor Coach dealers will complete the repair free of charge.
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What's wrong?
The transfer switch in these 2010-2011 Thor Motor Coach Windsport, Hurricane, and Serrano motorhomes directs electrical power between the generator and the coach electrical system. The affected units use an Iota ITS-50R transfer switch, which is supposed to carry generator power through internal connections without overheating under normal load.
Inside the recalled switch, the buss bar connections are not adequate. A buss bar is the metal conductor that carries power inside the switch. Under elevated electrical loads and higher temperatures, those connections run hotter than designed. Heat at that point damages the switch and the transfer switch can fail, cutting or disrupting generator-supplied power to the motorhome.
An owner or dealer can notice an electrical odor before the switch fails. Treat that smell as a warning sign from the electrical system and have the transfer switch inspected by a Thor Motor Coach dealer.
Who's affected?
Covers three Thor Motor Coach motorhome lines from the 2010 and 2011 model years, all tied to the electrical system.
| 2011 Thor Motor Coach Windsport | electrical system |
|---|---|
| 2011 Thor Motor Coach Hurricane | electrical system |
| 2010 Thor Motor Coach Hurricane | electrical system |
| 2011 Thor Motor Coach Serrano | electrical system |
| Units affected | 124 |
| Field incidents | NHTSA has logged 1 field incident to date. |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific motorhome is included.
What's the safety risk?
An overheating transfer switch increases the risk of a fire. An electrical odor is the warning sign to take seriously: stop using shore power, shut down the affected electrical load, and call a Thor Motor Coach dealer for repair instructions. Repair is free at any franchised Thor Motor Coach dealer.
What should I do?
- Check your VIN to confirm your 2010-2011 Thor Motor Coach Windsport, Hurricane, or Serrano motorhome is included in this recall.
- Contact a franchised Thor Motor Coach dealer to schedule the free Iota ITS-50R transfer-switch replacement that fixes the overheating fire risk under heavy electrical load and high heat.
- Bring the recall notice if Thor Motor Coach mailed one. If not, reference recall number 17V544 when you call.
- Avoid generator use under heavy electrical load in high heat until the transfer-switch replacement is complete.
- Call Thor Motor Coach customer service at 1-877-500-1020 with questions, and mention Thor recall RC000145.
What happens at the repair
At the dealer, a Thor Motor Coach technician replaces the Iota ITS-50R transfer switch with a transfer switch from another manufacturer. The replacement parts and labor are free under recall 17V544. Thor Motor Coach has a general reimbursement plan on file for this campaign. If you already paid for a related transfer switch repair before the recall notice, ask Thor Motor Coach customer service how to submit documentation under that plan.
| Reimbursement | Reimbursement available |
|---|
Timeline
| August 31, 2017 | NHTSA published the recall |
|---|---|
| September 7, 2017 | Owner notification mailed |
| October 30, 2017 | Dealer notification began |
| October 30, 2017 | Dealer notification ended |
| October 30, 2017 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 17V544?
Recall 17V544 covers 124 2010-2011 Thor Motor Coach Hurricane, Windsport, and Serrano motorhomes with an Iota ITS-50R transfer switch that can fail under elevated electrical loads and higher temperatures. The switch can overheat and increase fire risk. Thor Motor Coach dealers replace it for free.
What should I do if my 2010-2011 Thor Motor Coach Hurricane, Windsport, or Serrano is on this recall?
Check your VIN to confirm your specific motorhome is included in recall 17V544. If it is, contact a franchised Thor Motor Coach dealer to schedule replacement of the Iota ITS-50R transfer switch. Reference recall 17V544 or Thor recall RC000145 when you call.
Is the recall repair free?
Yes. Federal recall law requires the recall repair to be performed at no cost. Thor Motor Coach dealers replace the Iota ITS-50R transfer switch with a transfer switch from another manufacturer free of charge.
What is the safety risk in recall 17V544?
The safety risk is fire from an overheated transfer switch. The recalled motorhomes are wired for generator power and have an Iota ITS-50R transfer switch that can fail under elevated electrical loads and higher temperatures. The free dealer repair replaces that switch.
What if I bought this Thor Motor Coach motorhome used?
The free recall repair still applies. Recall coverage follows the VIN, not the first owner. Check your VIN, then contact a franchised Thor Motor Coach dealer if your Hurricane, Windsport, or Serrano is included. You can also call Thor Motor Coach customer service at 1-877-500-1020.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/17V544000 |
|---|---|
| Thor Motor Coach customer service | 1-877-500-1020 |
| NHTSA recall # | 17V544 |
| NHTSA recall # (full) | 17V544000 |
Source documents
-
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 →