SkipThatYearREAL DATA. SMARTER CAR DECISIONS.
← New search

2018 Thor Motor Coach Aria

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

About this comparison →
1Owner complaints

Model-year median: 1

2Recall campaigns

View recall details →

0Investigations

View investigation details →

How this year compares

Owner complaints by model year

Other model years Selected year
2
20171
20181
20192
20201
2021
Compare all Aria years →

Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

Equipment
1Structure
1

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

Limited mileage data: 1 of 1 reports include usable mileage. There isn’t enough coverage to show a useful chart.

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Equipment. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Structure. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

0 crash reports0 fire reports0 injury reports

What owners actually said

1 reports
37,231 miles · Dec 1, 2023
EquipmentStructure

The contact owns a 2018 Freightliner XC-R. The contact stated that one of the windows located at the front end of the motorhome had started to delaminate. The contact used silicone to seal the window; however, he noticed that other windows in the motorhome were also experiencing the same failure. The contact stated that while dr…

Read full complaint

The contact owns a 2018 Freightliner XC-R. The contact stated that one of the windows located at the front end of the motorhome had started to delaminate. The contact used silicone to seal the window; however, he noticed that other windows in the motorhome were also experiencing the same failure. The contact stated that while driving at an unknown speed, a bathroom window detached from the RV. The contact stated that a total of five windows in the motorhome had failed due to an adhesive failure. Upon investigation, the contact discovered NHTSA Campaign Number: 21V522000 (Structure, Equipment). The manufacturer was notified of the failure, but the RV was not included in the recall. The RV was not repaired. The failure mileage was 37,231.

NHTSA ODI #11557848

Official recalls

2

20V559000 · Tires:valve

Sep 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.

Consequence & remedy

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 1-800-547-0712. TMC's number for this recall is RC000204. DTNA's number for this recall is FL-861.

20V418000 · Electrical System; Exterior Lighting:brake Lights; Exterior Lighting:turn Signal

Jul 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.

Consequence & remedy

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.

Additional source detail variants (3)

Exterior Lighting:turn Signal

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.

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.

Exterior Lighting:brake Lights

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.

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.

Electrical System

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.

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.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

0

No exact-year investigations in this snapshot.