2018 Thor Motor Coach Ace: recalls and complaints
Official NHTSA recall campaigns and consumer complaints for one RV model year, with the notice text and links to the source.
Key facts
- The 2018 Thor Motor Coach Ace has 3 NHTSA recall campaigns that list this model year.
- No chassis mapping is recorded for this model year, so no chassis recalls are counted.
- 0 equipment recalls are linked to it by reviewed rules.
- NHTSA holds 5 consumer complaints for this model year. Complaints are unverified reports, not confirmed failures.
- The latest campaign was received on July 30, 2018, 2,973 days before the NHTSA release of September 19, 2026.
- RV class: Class A gas. Brand owner in this site's reference table: Thor Industries (high confidence).
NHTSA records released through September 19, 2026; Transport Canada records through September 19, 2026. The absence of a recall in this dataset does not establish that a vehicle is safe.
Recall campaigns
3 campaigns in total: 3 listed for this model year, 0 inherited from the chassis and 0 equipment. Remedy text is quoted from the official notice; open the full notice for the whole text.
| Campaign | Received | Component | Summary | Remedy (official text) | Type | Sources |
|---|---|---|---|---|---|---|
| 18V498000 | July 30, 2018 | Equipment: Recreational Vehicle/Trailer | Thor Motor Coach (TMC) is recalling certain 2018 Thor Ace 27.2 recreational vehicles. The rubber liquid propane (LP) hose may sag and contact the tire in the wheel well. | TMC will notify owners, and dealers will inspect the rubber LP hose and replace it as necessary. Dealers will install additional p-clamps or relocate the existing… | Vehicle | Full notice NHTSA |
| 17V758000 | November 22, 2017 | Equipment | Thor Motor Coach (Thor) is recalling various 2003-2018 recreational vehicles, equipped with Kidde Plastic-Handle or Push Button 'Pindicator' Fire Extinguishers. See a list of the affected trailer models at:… | Thor will notify owners, instructing them to contact Kidde for a replacement fire extinguisher, free of charge. The recall began on January 15, 2018. Owners may contact… | Vehicle | Full notice NHTSA |
| 17V692000 | November 2, 2017 | Exterior Lighting | Thor Motor Coach (TMC) is recalling certain 2018 Ace, Axis, Hurricane, Windsport, and Vegas motorhomes. The wiring for the trailer lights may have been inserted into the wrong locations of the trailer lighting socket causing the… | Thor has notified owners and dealers will re-wire a new connector, free of charge. The recall began on November 21, 2017. Owners may contact TMC customer service at… | Vehicle | Full notice NHTSA |
Complaints by component
5 unique complaints. The share is the number of unique complaints tagged to a component category divided by the 5 unique complaints for this model year. A complaint can name more than one component, so shares can add up to more than 100 percent.
| Component category | Complaints | Share | Bar |
|---|---|---|---|
| Electrical System | 1 | 20% | |
| Engine | 1 | 20% | |
| Power Train | 1 | 20% | |
| Steering | 1 | 20% | |
| Suspension | 1 | 20% | |
| Visibility/Wiper | 1 | 20% |
Complaint excerpts
The 5 most recent complaints with a narrative. Names, emails, phone numbers, VINs and addresses are removed. Reports are unverified. NHTSA record set for this vehicle (JSON).
The contact owns a 2018 Thor Ace RV. The contact stated that while driving 70 MPH, the vehicle suddenly veered to the right and the driver was no longer able to properly steer the vehicle. A mobile mechanic was called to the location and diagnosed that the front passenger’s side wheel bearing had failed and needed to be replaced. The mechanic stated that the wheel bearing failure was due to insufficient lubrication within the wheel bearing. The front passenger’s side wheel bearing and spindle were replaced, and the vehicle was repaired. The vehicle was later taken to the local mechanic who …
Transmission down shifts excessively on downhill grades
TL* THE CONTACT OWNS A 2018 THOR ACE MOTOR HOME. THE CONTACT STATED THAT THE WINDSHIELD FLUID SPRAYER DID NOT SPRAY THE FLUID HIGH ENOUGH TO CLEAN THE ENTIRE WINDSHIELD. THE FAILURE CAUSED A BUILD-UP OF DEBRIS ON THE WINDSHIELD. THE VEHICLE WAS TAKEN TO CAMPING WORLD OF BAKERSFIELD ([phone removed], LOCATED AT [address removed], BAKERSFIELD, CA 93313) WHERE THE LINES WERE CHECKED TO MAKE SURE THEY WERE NOT CLOGGED. THE TECHNICIAN ALSO CHANGED THE WIPER BLADES, BUT THE FAILURE RECURRED. THE TECHNICIAN TOOK A PICTURE OF THE POSITION OF THE SPRAYER AND SENT IT TO THE MANUFACTURER. THE …
TL* THE CONTACT OWNS A 2018 THOR ACE. WHILE DRIVING VARIOUS SPEEDS, THE STEERING WHEEL WAS EXTREMELY LOOSE, THE AUXILIARY BATTERY OVERHEATED, AND THE VEHICLE DECELERATED. IN ADDITION, THE CHECK ENGINE WARNING INDICATOR ILLUMINATED. UPON OPENING THE HOOD, THE CONTACT NOTICED ACID EMERGING FROM THE AUXILIARY BATTERY. THE VEHICLE WAS TAKEN TO [removed] OF ALBUQUERQUE ([address removed] NW, ALBUQUERQUE, NM 87121 [phone removed]) WHERE IT WAS DIAGNOSED THAT THE STABILIZER FOR THE FRONT AND REAR NEEDED TO BE REPLACED ALONG WITH THE AUXILIARY BATTERY. THE CONTACT STATED THAT THE VEHICLE WAS AT THE …
UNDERRATED CIRCUIT BREAKER, 15 AMP VICE 20 AMP, RATING FOR REAR AIR CONDITIONER. FORWARD AIR CONDITIONER, SAME MODEL AND SIZE, HAS CORRECT 20 AMP CIRCUIT BREAKER. OVERRATED FUSE D8, 20 AMP VICE 15 AMP, ON CEILING LIGHTS. THIS WAS FOUND WHILE STATIONARY TROUBLESHOOTING A WATER LEAK. I DECIDED TO SEE WHAT SPARE FUSES I MAY NEED AND I NOTED THESE DISCREPANCIES.
Chassis
No chassis mapping is recorded for this model year. Mappings come only from recall notices that name the chassis, so this is a gap in the record, not a statement about the coach.
Canadian notices
Transport Canada publishes its own notices with their own IDs. They are separate records from the U.S. campaigns above and are never merged with them.
- Notice 2017613 (December 7, 2017): Accessories. Official page
- Notice 2018397 (July 30, 2018): Accessories. Official page
Related model years
- 2017 Thor Motor Coach Ace
- 2019 Thor Motor Coach Ace
- Thor Motor Coach Ace, all years
- 2018 Fleetwood RV Bounder (same class)
- 2018 Forest River Georgetown (same class)
- 2018 Jayco Precept (same class)
- 2018 Newmar Bay Star (same class)
Source release: NHTSA September 19, 2026. Method version v1. How this page is built.
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