RoadVitals

2021 Thor Motor Coach Ace

Recalls, owner-reported complaints, investigations and safety data

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
3
Latest Jul 8, 2024
Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
1
Latest Jun 9, 2020
InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
0
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
0

Overview

Our database contains 3 NHTSA owner-reported complaints for the 2021 Thor Motor Coach Ace, most frequently naming the electrical, driver assistance and engine categories. 1 safety recall has been issued covering this model year; and 2 manufacturer communications are on file.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

What owners report

Complaints grouped by the component NHTSA recorded

  • Electrical233.3%
  • Driver assistance116.7%
  • Engine116.7%
  • Powertrain (other)116.7%
  • Suspension116.7%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Safety recalls

1 campaign cover this model year

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov
20V339000

VISIBILITY:GLASS, SIDE/REAR

Jun 9, 2020
71 units potentially affected
The defect: Thor Motor Coach (TMC) is recalling certain 2020-2021 ACE, 2021 Four Winds and 2020 Gemini, Axis, Compass, Delano, Windsport, Hurricane, Outlaw, and Vegas motorhomes. The adhesive bond between the glass and the metal hinge frame of the frameless windows may fail which would then allow the glass to detach and fall out.
The risk: If the window glass detaches while the vehicle is moving it could become a projectile, increasing the risk of a crash.
The remedy: TMC will notify owners, and dealers will inspect the frameless windows for proper adhesive bond strength, replacing the windows as necessary, free of charge. The recall began July 10, 2020. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000192.
Thor Motor CoachManufacturer number RC000192View on NHTSA.gov

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

Electrical
Filed Jul 8, 2024

Air conditioner compressor wouldn't engage in rv. Called a mobile technician. Mobile technician found burnt and melted connectors on the control board. Technician stated the connectors used for 120v power were 12v crimp connectors and had burned and melted from the amperage. Technician stated that these used connectors were illegal to use for 120v. This is a safety concern and could result in a fire. Stated we were lucky the control board melted and didn't result in a fire and burn down the coach.

NHTSA ID
11600287
Incident
Jul 6, 2024
Driver assistanceElectricalEngine
Filed Oct 28, 2021

Returning home from trip, route US I26 in NC, heading down 6 degree hill lost all speed control. The following dash lights came on: ABS, Engine Service, the Wrench, anti sway control. We were able to roll to the side of the road just before an entrance ramp. There was no acceleration control.

NHTSA ID
11438528
Incident
Oct 22, 2021
Powertrain (other)Suspension
Filed Oct 4, 2021

The contact owns a 2021 Thor Motor Coach Ace RV. The contact received notification of NHTSA Campaign Number: 21V202000 (Suspension, Power Train) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The local dealer and the manufacturer were made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

NHTSA ID
11435409
Incident
May 3, 2021

Manufacturer communications

A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.

RC000219SADealer

ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION; POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:BEARINGS/BUSHINGS

On your vehicle, the rear axle may contain an inadequate volume of lubricating oil. An inadequate volume of rear axle lubricant may result in rear wheel bearing damage potentially leading to bearing seizure. Bearing seizure may lead to rear axle or driveshaft failure. A rear axle or driveshaft failure may result in loss of vehicle motive power, loss of transmission park function, and loss of parking brake function, increasing the risk of a crash. This affects the following Thor Motor Coach products: model year 2021/2022 Ace, Challenger, Freedom Traveler, Hurricane, Miramar, Outlaw, and Windsport motorhomes

RC000219SAOwner

FUEL SYSTEM, OTHER; POWER TRAIN:AUTOMATIC TRANSMISSION; SERVICE BRAKES

On your vehicle, the rear axle may contain an inadequate volume of lubricating oil. An inadequate volume of rear axle lubricant may result in rear wheel bearing damage potentially leading to bearing seizure. Bearing seizure may lead to rear axle or driveshaft failure. A rear axle or driveshaft failure may result in loss of vehicle motive power, loss of transmission park function, and loss of parking brake function, increasing the risk of a crash. This affects the following Thor Motor Coach products: model year 2021/2022 Ace, Challenger, Freedom Traveler, Hurricane, Miramar, Outlaw, and Windsport motorhomes.

Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Compare model years

Complaint and recall counts across every year of this model

Thor Motor Coach Ace by model year
YearComplaintsRecallsInvestigationsIssue Index
2023100—
2022310—
2021Viewing310—
2020010—
2019200—
2018530—
2017341—
2016751—
2015541—
2014341—
2013340—
2012130—
2011120—

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.