Model year record

2021 Thor Motor Coach Ace recalls & problems

The 2021 Thor Motor Coach Ace has 1 safety recall and 3 owner complaints on file with NHTSA. The most-reported problem area is electrical system (2 complaints).

Recalls1safety recalls

Complaints3filed by owners

Crashes · fires0 · 0reported in complaints

Injuries · deaths0 · 0reported in complaints

Safety recalls

VisibilityJun 9, 2020

Glass, side/rear

Recall 20V33900071 vehicles

Problem: 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.
Risk: If the window glass detaches while the vehicle is moving it could become a projectile, increasing the risk of a crash.
Fix: 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.

Recall repairs are free at any authorised dealer. A recall listed here may already have been fixed on a particular car: enter its 17-character VIN at nhtsa.gov/recalls to see open recalls.

What owners report

Problem area	Complaints	Typical mileage*
Electrical system	2	—
Suspension	1	—
Power train	1	—
Engine	1	—
Vehicle speed control	1	—

*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.

Recent owner complaints

Electrical system
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.
Jul 6, 2024
Electrical system
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.
Oct 22, 2021
Suspension
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.
May 3, 2021

Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.