Does the 2020 Thor Motor Coach Aria have any recalls?

Transport Canada lists 2 campaigns and the U.S. NHTSA lists 4 for the 2020 Thor Motor Coach Aria. Matched by make, model, and model year. Many recalls affect only specific VIN ranges — confirm with your dealer using your full VIN.

How do I know if a recall applies to my 2020 Thor Motor Coach Aria?

Recalls are matched by make, model and model year, but many cover only certain VIN ranges. Confirm with your manufacturer or dealer using your full VIN, or use the official Transport Canada or NHTSA lookup.

Are recall repairs free?

Yes. In both Canada and the United States the manufacturer must fix a recalled defect at no charge, through a franchised dealer.

RECALLS — MAKE · MODEL · YEAR

2020 Thor Motor Coach Aria recalls

6 safety recall campaigns have been filed for the 2020 Thor Motor Coach Aria with Transport Canada and the U.S. NHTSA. Here is what both agencies say.

Canadian recalls: 02
U.S. recalls: 04
Total campaigns: 06

Transport Canada recalls

Structure#2021499August 9, 2021
14 units affected
Issue: On certain motorhomes equipped with frameless windows, the adhesive that attaches the vented portion of the windows may fail. If this happens, the glass could separate and fall from the motorhome. Safety Risk: A window that detaches from the motorhome could create a road hazard for others and increase the risk of a crash. Corrective Action: Thor Motor Coach will notify owners by mail and instruct you to bring your motorhome to an authorized dealer or service center to inspect and replace the vent window glass, as required.
Lights And Instruments#2020330July 20, 2020
87 units affected
Issue: Certain motorhomes built on a Freightliner chassis could have a problem with the rear-mounted Power Distribution Module (PDM). This could cause the tail lights not to work properly. Note: This is an expansion of recall 2018-596. Vehicles that had an inspection, but did not have the PDM replaced under the previous recall, require a second repair under this recall. Safety Risk: Brake lights or turn signals that do not work could cause a following driver not to recognize that a vehicle ahead is braking or intends to turn. This could increase the risk of a crash. Corrective Actions: Thor Motor Coach will notify owners by mail and instruct them to take their motorhome to a Daimler Trucks North America (DTNA) authorized service facility to replace the PDM.

Canadian data updated August 24, 2026

U.S. NHTSA recalls

STRUCTURE#21V522000July 8, 2021
Thor Motor Coach (TMC) is recalling certain 2019 Challenger, Palazzo, Tuscany, 2019-2020 Miramar, 2019-2021 Aria, Outlaw, and Venetian recreational vehicles equipped with Hehr 6400 series windows. The adhesive that bonds the vented portion of the window may fail.
Risk: Adhesive failure may cause the vent portion of the window to detach, increasing the risk of a crash or injury.
Remedy: Dealers will inspect the windows, and replace the vent if necessary, free of charge. Owner notification letters were mailed September 8, 2021. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000232.
TIRES:VALVE#20V559000September 15, 2020
Thor Motor Coach (TMC) is recalling certain 2018-2021 Aria, Palazzo, Tuscany, and Venetian motorhomes built on a Daimler Trucks (DTNA) chassis. The tire valve stem extension for the inner wheel may contact the outer wheel rim opening and become damaged.
Risk: Extensive damage to the valve stem extension may result in a loss of tire pressure of the inner wheel, increasing the risk of a crash.
Remedy: TMC will notify owners, and DTNA dealers will inspect the inner wheel valve stem stabilizers, and adjust as needed and/or replace the inner valve stem, free of charge. The recall began November 2, 2020. Owners may contact TMC customer service at 1-800-524-5210 extension 104 or DTNA customer service at 1-800-547-0712. TMC's number for this recall is RC000204. DTNA's number for this recall is FL-861.
EXTERIOR LIGHTING:BRAKE LIGHTS#20V418000July 20, 2020
Thor Motor Coach (TMC) is recalling certain 2017-2020 Aria, Venetian and Tuscany, 2017 Tuscany XTE and 2017-2019 Palazzo motorhomes vehicles that received an inspection-only remedy for recall 18V-763. The rear mounted Power Distribution Module (PDM) may have been damaged during manufacturing, possibly resulting in the rear marker lights, brake lights, or turn signals not functioning.
Risk: Non-functioning exterior marker lights can increase the risk of a crash.
Remedy: TMC will notify owners, and Daimler Trucks dealers will replace the PDM, free of charge. Owner letters were mailed October 6, 2021. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000196.
SERVICE BRAKES, AIR:DISC:CALIPER#20V167000March 20, 2020
Thor Motor Coach (TMC) is recalling certain 2019-2020 Aria 3401, 3601, 3901, 3902, and Venetian G36, J40, L40, M37, R40, and S40 motorhomes built on DTNA chassis. The brake caliper mounting bolts may have been insufficiently tightened.
Risk: Loose brake caliper mounting bolts can reduce brake effectiveness, increasing the risk of a crash.
Remedy: DTNA will notify owners, and DTNA dealers will inspect and repair the vehicles, free of charge. The recall began on May 20, 2020. Owners may contact DTNA customer service at 1-800-547-0712 or TMC customer service at 1-877-855-2867.

Does this recall apply to my vehicle?

Matched by make, model, and model year. Many recalls affect only specific VIN ranges — confirm with your dealer using your full VIN.

What to do

Recall repairs are free at a franchised dealer in both countries. To confirm a recall applies to your specific vehicle, or to book the work, contact your manufacturer or dealer with your full VIN, or use the official channel:

NHTSA recall lookup (search by VIN) — U.S. National Highway Traffic Safety Administration
Defects and recalls database — Transport Canada

Check a 2020 Thor Motor Coach Aria VIN

A VIN decode confirms your vehicle's exact model year, trim and assembly plant, then runs this same recall check against it.

Data sources and coverage limits →