RecallRepo

2019 Thor Motor Coach Aria Recalls

Recalls on record Updated July 2026

The 2019 Thor Motor Coach Aria has 4 NHTSA recall campaigns affecting an estimated 4,654 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 3 complaints with NHTSA, most often about the electrical system. Last updated July 5, 2026.

Recall campaigns

EQUIPMENT 21V522000 2021-07-08 521 affected
Defect

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.

Consequence

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 20V559000 2020-09-15 1,631 affected
Defect

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.

Consequence

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…

EXTERIOR LIGHTING 20V418000 2020-07-20 2,417 affected
Defect

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…

Consequence

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 20V167000 2020-03-20 85 affected
Defect

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.

Consequence

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.

Complaints by component

ELECTRICAL SYSTEM
1
1crashes
STRUCTURE:BODY
1
1crashes
UNKNOWN OR OTHER
1
1crashes
Total complaints3

What owners report

Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.

“When we restarted the engine of our motor coach after fueling, the awning automatically extended. It it not supposed to be possible to extend the awning while the engine is on. We were also told there is a safety feature that will not allow the vehicle to drive with the awning extended. When we…”

STRUCTURE:BODY · reported 2021-04-08

“When we restarted the engine of our motor coach after fueling, the awning automatically extended. It it not supposed to be possible to extend the awning while the engine is on. We were also told there is a safety feature that will not allow the vehicle to drive with the awning extended. When we…”

ELECTRICAL SYSTEM · reported 2021-04-08

“When we restarted the engine of our motor coach after fueling, the awning automatically extended. It it not supposed to be possible to extend the awning while the engine is on. We were also told there is a safety feature that will not allow the vehicle to drive with the awning extended. When we…”

UNKNOWN OR OTHER · reported 2021-04-08
Sources & methodology

Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2019 Thor Motor Coach Aria as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.