2017-2019 Thor Motor Coach RV Recall 18V763: Rear Lights

Recall 18V763 affects 1,769 2017-2019 Thor Motor Coach Tuscany Xte, Venetian, Tuscany, Aria, and Palazzo motorhomes for failed rear lighting. Repair is free at any franchised Thor Motor Coach dealer.

What's wrong?

The Power Distribution Module on these 2017-2019 Thor Motor Coach Tuscany Xte, Venetian, Tuscany, Aria, and Palazzo motorhomes is an electrical junction box mounted at the rear of the Freightliner chassis. It routes power to rear lighting circuits, including the marker lights, brake lights, and turn signals, so other drivers can see when the motorhome is braking or turning.

On affected chassis, the module's internal circuit board was not seated properly during a soldering operation. That let the board bend under manufacturing stress, which damaged the circuit path inside the module. After a period of vehicle use, the damaged board can create intermittent open circuits. When that happens, the rear marker lights, brake lights, or left turn signal lights fail to operate.

There is no warning sign before failure. The driver can press the brake pedal or use the turn signal and have no clear indication from the driver seat that the rear lights are not working.

Who's affected?

Spans five Thor Motor Coach motorhome lines across the 2017, 2018, and 2019 model years, with turn signal, brake light, and electrical system components listed.

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?

Nonfunctioning lights make the motorhome harder to see and reduce the signals other drivers rely on, increasing the risk of a crash. Until the repair is complete, use extra caution around traffic and schedule service soon. Repair is free at any franchised Thor Motor Coach dealer.

What should I do?

1. Check your VIN to confirm your 2017-2019 Thor Motor Coach Tuscany Xte, Venetian, Tuscany, Aria, or Palazzo is included in this recall.
2. Contact a franchised Thor Motor Coach dealer to schedule the free Power Distribution Module repair that fixes rear marker lights, brake lights, and turn signals that stop working.
3. Bring the recall notice if you have it, and reference recall number 18V763 when you call.
4. Confirm the rear marker lights, brake lights, and turn signals work before each trip until the repair is complete.
5. Avoid driving after dark or in low visibility if those exterior lights are not working.

What happens at the repair

At the dealer, a Thor Motor Coach technician handles the Power Distribution Module recall work on the Freightliner chassis. The source remedy says the final procedure was still under development when owner notices began, so ask the service desk to confirm the current PDM repair before the appointment. Parts and labor are free under recall 18V763. Thor Motor Coach used its general reimbursement plan on file, so owners who already paid for related light or PDM repairs should provide repair orders and payment documentation to request reimbursement.

Timeline

Frequently asked questions

More information

Source documents

• Download Owner Notification Letter (PDF) · RCONL
• Download Owner Notice (PDF) · RCMN
• Download Recall Report (PDF) · RCLRPT
• Download Recall Acknowledgement (PDF) · RCAK

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 →