2021 Thor Motor Coach GEMINI problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
1 owner complaints analyzed
0 distinct recall campaigns
Not available median reported failure mileage
Scope: 2021 model year. Data updated: . 0 complaints include usable failure mileage. View data status.
This selection has limited data. It remains available for lookup but is excluded from search indexing.
Most common problems
Structure:Body is the most frequently named component, appearing in 1 of 1 complaints (100.0%). A complaint can name multiple components.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Structure:Body | 1 |
Structure:Body: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 0 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 0; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
No usable failure mileage is recorded. 1 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2023 | 1 |
2023: 1
Pattern summary
Structure:Body leads the component reports. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Vehicle analysis explorer
Inspect model-year patterns, reported mileage, monthly activity and the evidence behind each signal.
Data completeness
1 unique complaints in this selection. Analysis snapshot: 2026-10-01.
Missing, zero and invalid mileage is excluded. Dates after the snapshot are excluded. Examples are limited selections, not a representative sample.
Problems by model year
Model-wide comparison of the eight most reported components across the model. Cells show counts and shares within each model year. Open a cell for source examples.
| Component | 2016 | 2017 | 2018 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|
| Electrical System | 0UnavailableNo examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 150.0%ODI 11648320 · 1,478 miThe contact owns a 2023 Thor Motor Coach Gemini. The contact stated that the wire connecting the solenoid to the generator was burned. The solenoid was making a cranking sound while turned off. The contact stated that the head bolts had fractured and detached on the side awning rails on both sides. The skylight window was leaking water into the cabin of the camper. The contact stated that there was a warning informing the contact that the motorhome was due for an oil change that occurred earlier than expected. The contact received notification … |
| Electrical System: Integrated Trailer Brake Control | 0UnavailableNo examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 1100.0%ODI 11642018This brake controller seems to apply full brakes regardless of the settings within the app. I have reinstalled it several times as directed by the manufacturere and each time I get on the road and just barely touch the brakes it locks the trailer brakes. This is dangerous since there is no way to test the system without driving. | 00.0%No examples available for this selection. |
| Electronic Stability Control (Esc) | 0UnavailableNo examples available for this selection. | 0UnavailableNo examples available for this selection. | 150.0%ODI 11351299 · 8,000 miTHE REAR SPEED SENSOR ON MY 2018 THOR GEMINI RV WITH THE MERCEDES BENZ 3500 SPRINTER CHASSIS WENT BAD KNOCKING OUT MY ABS, STABILITY CONTROL AND CRUISE CONTROL ON A LONG TRIP. I WAS ON THE HIGHWAY DOING A STEADY 60-65 MPH. MY SPRINTER ONLY HAS 8,000 MILES ON IT. I'VE READ THIS IS A RECURRING PROBLEM ON THESE VEHICLES SO I THOUGHT I WOULD REPORT IT. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. |
| Equipment | 0UnavailableNo examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 150.0%ODI 11648320 · 1,478 miThe contact owns a 2023 Thor Motor Coach Gemini. The contact stated that the wire connecting the solenoid to the generator was burned. The solenoid was making a cranking sound while turned off. The contact stated that the head bolts had fractured and detached on the side awning rails on both sides. The skylight window was leaking water into the cabin of the camper. The contact stated that there was a warning informing the contact that the motorhome was due for an oil change that occurred earlier than expected. The contact received notification … |
| Forward Collision Avoidance: Warnings | 0UnavailableNo examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 150.0%ODI 11503404Purchased October 8 2022. Vehicle is a 2023 Thor Gemini 24KB on a 2022 Ford chassis. Vehicle has been in for repair of these items for over 30 days. Vehicle warning light notifications - Antilock Brake Fault Hill Start Assist Warning Pre-collision Assist Not Available Adaptive Cruise Control Not Available All Wheel Drive Not Available. It was viewed by Ford technicians. It is stated by Ford technicians the vehicle is not safe to operate. Problem first appeared November 2022. |
| Lane Departure: Warning | 0UnavailableNo examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 150.0%ODI 11503404Purchased October 8 2022. Vehicle is a 2023 Thor Gemini 24KB on a 2022 Ford chassis. Vehicle has been in for repair of these items for over 30 days. Vehicle warning light notifications - Antilock Brake Fault Hill Start Assist Warning Pre-collision Assist Not Available Adaptive Cruise Control Not Available All Wheel Drive Not Available. It was viewed by Ford technicians. It is stated by Ford technicians the vehicle is not safe to operate. Problem first appeared November 2022. |
| Service Brakes | 0UnavailableNo examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 1100.0%ODI 11642018This brake controller seems to apply full brakes regardless of the settings within the app. I have reinstalled it several times as directed by the manufacturere and each time I get on the road and just barely touch the brakes it locks the trailer brakes. This is dangerous since there is no way to test the system without driving. | 00.0%No examples available for this selection. |
| Structure | 0UnavailableNo examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 150.0%ODI 11648320 · 1,478 miThe contact owns a 2023 Thor Motor Coach Gemini. The contact stated that the wire connecting the solenoid to the generator was burned. The solenoid was making a cranking sound while turned off. The contact stated that the head bolts had fractured and detached on the side awning rails on both sides. The skylight window was leaking water into the cabin of the camper. The contact stated that there was a warning informing the contact that the motorhome was due for an oil change that occurred earlier than expected. The contact received notification … |
Darker cells indicate a larger share of submitted complaints. Components overlap. This measures complaint composition, not failure probability.
Failure mileage by component
Median and middle 50% of usable owner-reported mileages. Ranges require at least five records.
| Component | Mileage range (25th–75th percentile) | Median | Usable records | Examples |
|---|---|---|---|---|
| No usable records for this analysis. | ||||
Complaint and recall timeline
Explore monthly filing activity alongside recall announcements. Up to ten years of monthly history is available.
Solid line: filed complaints. Dashed amber lines: recall announcement dates for this vehicle selection; markers include all recall components. The latest month is partial. Temporal proximity does not establish causation.
Monthly counts, recall campaigns and complaint examples
| Month | Complaints | Campaigns announced | Examples |
|---|---|---|---|
| 2024-11 | 0 | None | No examples available for this selection. |
| 2024-12 | 0 | None | No examples available for this selection. |
| 2025-01 | 0 | None | No examples available for this selection. |
| 2025-02 | 0 | None | No examples available for this selection. |
| 2025-03 | 0 | None | No examples available for this selection. |
| 2025-04 | 0 | None | No examples available for this selection. |
| 2025-05 | 0 | None | No examples available for this selection. |
| 2025-06 | 0 | None | No examples available for this selection. |
| 2025-07 | 0 | None | No examples available for this selection. |
| 2025-08 | 0 | None | No examples available for this selection. |
| 2025-09 | 0 | None | No examples available for this selection. |
| 2025-10 | 0 | None | No examples available for this selection. |
| 2025-11 | 0 | None | No examples available for this selection. |
| 2025-12 | 0 | None | No examples available for this selection. |
| 2026-01 | 0 | None | No examples available for this selection. |
| 2026-02 | 0 | None | No examples available for this selection. |
| 2026-03 | 0 | None | No examples available for this selection. |
| 2026-04 | 0 | None | No examples available for this selection. |
| 2026-05 | 0 | None | No examples available for this selection. |
| 2026-06 | 0 | None | No examples available for this selection. |
| 2026-07 | 0 | None | No examples available for this selection. |
| 2026-08 | 0 | None | No examples available for this selection. |
| 2026-09 | 0 | None | No examples available for this selection. |
| 2026-10 (partial) | 0 | None | No examples available for this selection. |
Emerging complaint spikes
Complete months in the latest six months with at least 10 complaints, at least twice the preceding 12-month average, and at least three square-root deviations above that average.
This is a descriptive screening rule, not a statistical defect finding. Publicity and reporting changes can increase submissions.
No complete months meet the spike thresholds for this selection.
Equal-age model-year comparison
Model-wide cumulative reports during the first three or five calendar years, starting with the model year (age 0). Only fully elapsed windows are compared.
2022: 0 complaints · 2023: 0 complaints
| Model year | Through age 0 | Through age 1 | Through age 2 |
|---|---|---|---|
| 2022 | 0 | 0 | 0 |
| 2023 | 0 | 0 | 0 |
Date coverage across each selected cohort
| Year | Incident dates used | Filing date fallbacks | Excluded dates |
|---|---|---|---|
| 2022 | 1 | 0 | 0 |
| 2023 | 0 | 0 | 2 |
Incident date is preferred when valid and no later than filing; otherwise filing date is used. Model year approximates age. Equal observation time does not adjust for sales, distance driven or reporting delays. One complaint linked to multiple model years can appear in each cohort.
Components reported together
Each cell counts unique complaints naming both components. Open a nonzero cell for examples.
| Component | Structure:Body |
|---|---|
| Structure:Body | — |
Co-reporting does not establish that one component caused another concern.
Recurring narrative patterns
Specific keyword mentions beyond broad component labels. Matching includes negations and comparisons and does not confirm a diagnosis.
0 patterns with matching reports.
No narratives match the published patterns.