U.S. public vehicle records

2021 Thor Motor Coach GEMINI: complaints, problems and recalls

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: 2026-10-01 (October 1, 2026). 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.

Owner-reported patterns

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.

Structure:Body

Structure:Body: 1

Reported problems by failure mileage

Complaint counts in mileage bands. These are not failure rates per vehicle or mile.

Under 25,000

25,000 to 49,999

50,000 to 74,999

75,000 to 99,999

100,000 to 149,999

150,000 and above

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.

2023

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.

Examples from the source records

Examples provide context, not a representative sample or a verified diagnosis.

Owner report 11506829 · 2023-02-12 (February 12, 2023)

UNKNOWN While under warranty, front cap caulking separating from chassis above windshield. Repair shop only recaulked the seam. Caulking separated again next motorhome trip, however vehicle since was beyond 1 year warranty. It was determined that the entire front cap was separating from the chassis. Manufacture would not accept any responsibility for the defect. Forums indicate this is not an isolated incident.

Owner-reported narrative. Look up ODI 11506829 at NHTSA ↗

Recall history

0 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.

No recall campaigns are recorded in this snapshot.

Explore the data

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.

0.0%Usable mileage0 / 1 records

100.0%Valid incident date1 / 1 records

100.0%Valid filing date1 / 1 records

100.0%Ordered incident and filing dates1 / 1 records

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.

From model yearThrough model year

Component complaint heatmap
Component	2016	2017	2018	2020	2021	2022	2023
Electrical System	0Unavailable No examples available for this selection.	0Unavailable No examples available for this selection.	00.0% No examples available for this selection.	0Unavailable No 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 mi The 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 … Look up ODI 11648320 at NHTSA ↗
Electrical System: Integrated Trailer Brake Control	0Unavailable No examples available for this selection.	0Unavailable No examples available for this selection.	00.0% No examples available for this selection.	0Unavailable No examples available for this selection.	00.0% No examples available for this selection.	1100.0% ODI 11642018 This 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. Look up ODI 11642018 at NHTSA ↗	00.0% No examples available for this selection.
Electronic Stability Control (Esc)	0Unavailable No examples available for this selection.	0Unavailable No examples available for this selection.	150.0% ODI 11351299 · 8,000 mi THE 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. Look up ODI 11351299 at NHTSA ↗	0Unavailable No 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	0Unavailable No examples available for this selection.	0Unavailable No examples available for this selection.	00.0% No examples available for this selection.	0Unavailable No 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 mi The 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 … Look up ODI 11648320 at NHTSA ↗
Forward Collision Avoidance: Warnings	0Unavailable No examples available for this selection.	0Unavailable No examples available for this selection.	00.0% No examples available for this selection.	0Unavailable No examples available for this selection.	00.0% No examples available for this selection.	00.0% No examples available for this selection.	150.0% ODI 11503404 Purchased 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. Look up ODI 11503404 at NHTSA ↗
Lane Departure: Warning	0Unavailable No examples available for this selection.	0Unavailable No examples available for this selection.	00.0% No examples available for this selection.	0Unavailable No examples available for this selection.	00.0% No examples available for this selection.	00.0% No examples available for this selection.	150.0% ODI 11503404 Purchased 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. Look up ODI 11503404 at NHTSA ↗
Service Brakes	0Unavailable No examples available for this selection.	0Unavailable No examples available for this selection.	00.0% No examples available for this selection.	0Unavailable No examples available for this selection.	00.0% No examples available for this selection.	1100.0% ODI 11642018 This 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. Look up ODI 11642018 at NHTSA ↗	00.0% No examples available for this selection.
Structure	0Unavailable No examples available for this selection.	0Unavailable No examples available for this selection.	00.0% No examples available for this selection.	0Unavailable No 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 mi The 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 … Look up ODI 11648320 at NHTSA ↗

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 failure mileage distribution
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.

ComponentPeriod

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

Monthly complaint and recall timeline
Month	Campaigns announced	Examples
2024-11	None	No examples available for this selection.
2024-12	None	No examples available for this selection.
2025-01	None	No examples available for this selection.
2025-02	None	No examples available for this selection.
2025-03	None	No examples available for this selection.
2025-04	None	No examples available for this selection.
2025-05	None	No examples available for this selection.
2025-06	None	No examples available for this selection.
2025-07	None	No examples available for this selection.
2025-08	None	No examples available for this selection.
2025-09	None	No examples available for this selection.
2025-10	None	No examples available for this selection.
2025-11	None	No examples available for this selection.
2025-12	None	No examples available for this selection.
2026-01	None	No examples available for this selection.
2026-02	None	No examples available for this selection.
2026-03	None	No examples available for this selection.
2026-04	None	No examples available for this selection.
2026-05	None	No examples available for this selection.
2026-06	None	No examples available for this selection.
2026-07	None	No examples available for this selection.
2026-08	None	No examples available for this selection.
2026-09	None	No examples available for this selection.
2026-10 (partial)	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.

Observation windowFirst model yearSecond model year

2022: 0 complaints · 2023: 0 complaints

Equal observation windows
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

Date basis for all complaints in selected model years
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 co-occurrence matrix
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.

Search patterns

0 patterns with matching reports.

No narratives match the published patterns.