Recall 18V780 affects 134 2018-2019 Thor Motor Coach Venetian and Aria motorhomes for loose brake caliper mounting bolts. Repair is free at authorized service facilities.
Thor Motor Coach is recalling 134 2018-2019 Venetian and Aria motorhomes because the brake caliper mounting bolts were not tightened enough. Loose caliper bolts can reduce brake effectiveness and raise the risk of a crash, and Thor Motor Coach dealers will complete the recall repair free of charge.
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What's wrong?
The air disc brake caliper on the 2018-2019 Thor Motor Coach Venetian and Aria motorhomes is the part that squeezes the brake pads against the disc when the driver applies the brakes. It has to stay firmly mounted to the axle assembly so the pads line up with the disc and apply braking force evenly. The mounting bolts hold that caliper in position.
On affected motorhomes, those brake caliper mounting bolts were not tightened to the required torque at the axle assembly plant. Torque is the set amount of tightening force on a fastener. If the bolts are loose or below specification, the caliper is not held as securely as designed, and braking performance can be affected.
There is no warning sign before failure. Do not wait for a sound, warning light, or pedal change to confirm the problem.
Who's affected?
Covers Venetian and Aria motorhomes across the 2018 and 2019 model years, all tied to the same brake system component.
| 2019 Thor Motor Coach Venetian | brake system |
|---|---|
| 2018 Thor Motor Coach Venetian | brake system |
| 2018 Thor Aria | brake system |
| 2019 Thor Aria | brake system |
| Units affected | 134 |
| Field incidents | NHTSA has logged 1 field incident to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether this recall applies to your specific motorhome.
What's the safety risk?
Loose brake caliper mounting bolts can reduce brake effectiveness and increase the risk of a crash. Drive cautiously, avoid unnecessary trips, and schedule the recall repair soon so the bolts can be checked and tightened. Repair is free at any franchised Thor Motor Coach dealer.
What should I do?
- Check your VIN to confirm your 2018-2019 Thor Motor Coach Venetian or Aria motorhome is included in this recall.
- Contact Thor Motor Coach customer service or a DTNA authorized service facility to schedule the free brake-caliper-bolt check and tightening that secures the brake calipers.
- Reference recall number 18V780 and Thor Motor Coach recall RC000164 when you call.
- Bring the recall notice if you have it, and confirm that parts and labor are covered before the service visit.
- Drive cautiously until the repair is complete. Leave extra following distance and avoid hard braking when traffic allows.
What happens at the repair
At an authorized service facility, a Thor Motor Coach technician checks the brake caliper mounting bolts and tightens them to the required specification. The recall repair is available now, and parts and labor are free. The work is focused on the brake caliper mounting hardware, the bolts that hold each caliper in place so the brake system can apply force correctly. Owners can contact Thor Motor Coach customer service with recall number RC000164 when arranging service.
Timeline
| November 5, 2018 | NHTSA published the recall |
|---|---|
| December 5, 2018 | Owner notification mailed |
| January 5, 2019 | Dealer notification began |
| January 5, 2019 | Dealer notification ended |
| January 5, 2019 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 18V780?
Recall 18V780 covers 134 2018-2019 Thor Motor Coach Venetian and Aria motorhomes with brake caliper mounting bolts that were not tightened enough. Loose caliper bolts can reduce brake effectiveness and increase crash risk. DTNA authorized service facilities will check and tighten the bolts for free.
What should I do if my 2018-2019 Thor Motor Coach Venetian or Aria is on this recall?
Check your VIN to confirm your specific motorhome is included in recall 18V780. If it is, contact Thor Motor Coach customer service at 1-877-855-2867 or a DTNA authorized service facility to arrange the free brake caliper bolt inspection and tightening.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to provide the recall repair at no cost. For recall 18V780, DTNA authorized service facilities will check and tighten the brake caliper mounting bolts free of charge.
What is the safety risk?
The safety risk is reduced brake effectiveness. Under recall 18V780, loose brake caliper mounting bolts can affect the air disc brake caliper and increase the risk of a crash. Confirm your VIN, then arrange the free inspection and tightening if your motorhome is included.
When did the recall repair become available?
The recall repair began December 5, 2018. Since the remedy is available, affected 2018-2019 Thor Motor Coach Venetian and Aria owners can arrange the free brake caliper mounting bolt check and tightening through the authorized service path for this recall.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/18V780000 |
|---|---|
| Thor Motor Coach customer service | 1-877-855-2867 |
| NHTSA recall # | 18V780 |
| NHTSA recall # (full) | 18V780000 |
Source documents
-
Download Recall Investigation Document (PDF) (PDF) - Download Owner Notification Letter (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 25, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →