2021 Thor Motor Coach SCOPE problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
4 owner complaints analyzed
3 distinct recall campaigns
35,000 mi median reported failure mileage
Scope: 2021 model year. Data updated: . 1 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
Equipment:Recreational Vehicle/Trailer is the most frequently named component, appearing in 3 of 4 complaints (75.0%). A complaint can name multiple components.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Equipment:Recreational Vehicle/Trailer | 3 |
| Unknown Or Other | 2 |
| Back Over Prevention | 1 |
| Equipment | 1 |
Equipment:Recreational Vehicle/Trailer: 3; Unknown Or Other: 2; Back Over Prevention: 1; Equipment: 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 | 1 |
| 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: 1; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
25,000 to 49,999 miles has the most reports with usable mileage (1). 3 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 |
|---|---|
| 2022 | 1 |
| 2024 | 2 |
| 2026 | 1 |
2022: 1; 2024: 2; 2026: 1
Pattern summary
Equipment:Recreational Vehicle/Trailer 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
4 unique complaints in this selection. Analysis snapshot: 2026-09-30.
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 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|
| Equipment:Recreational Vehicle/Trailer | 375.0%ODI 11491080My unit is a 2022 Thor Scope 18M Class B RV built on a RAM Promaster 1500 chassis. The problem is not with the chassis but the build by Thor. The solar panel on the roof is not secure and the aluminum panel is ripping through the bolts. I caught mine early and only one bolt ripped through, however, there are several reports on the THOR Rize/Scope Owners (Future Owners and WannaBees) Facebook page where the panel attachment failed and the solar panel came off the van while driving. | 436.4%ODI 11491021Solar panel on Thor 18M was completely blown off (now missing) the roof during a recent trip on 22-Oct-2022. The only remaining evidence of the solar panel is attached to the mounting brackets. PDF with pictures attached. | 00.0%No examples available for this selection. | 1100.0%ODI 11750537The 2022 RAM Promaster 1500 was converted by Thor Industries to a 2024 Thor Scope 18M in spring 2023 before I purchased it from a dealer in Connecticut. However, information concerning this conversion was not shared with the federal government as the vehicle VIN still lists it as a Promaster 1500. This caused me to miss notification for NHTSA Campaign Number 25V792000 involving a potential travel hazard created by adhesive failure leading to solar panel detachment. While traveling south to St. Johns, New Brunswick, Canada on [XXX] on [XXX], … |
| Unknown Or Other | 250.0%ODI 11491080My unit is a 2022 Thor Scope 18M Class B RV built on a RAM Promaster 1500 chassis. The problem is not with the chassis but the build by Thor. The solar panel on the roof is not secure and the aluminum panel is ripping through the bolts. I caught mine early and only one bolt ripped through, however, there are several reports on the THOR Rize/Scope Owners (Future Owners and WannaBees) Facebook page where the panel attachment failed and the solar panel came off the van while driving. | 436.4%ODI 11491021Solar panel on Thor 18M was completely blown off (now missing) the roof during a recent trip on 22-Oct-2022. The only remaining evidence of the solar panel is attached to the mounting brackets. PDF with pictures attached. | 1100.0%ODI 11518974Fuel line to generator is long rubber hose rubbing on screws. Same with electrical wires. Exhaust from generator and vehicle coming back in from exposed holes in floor under cabinetry. I have informed THOR motor coach. This vehicle is unsafe and could catch fire due to rubber fuel line leaking onto exposed electrical connections or exhaust. Holes in floor for tubes and electrical are not sealed allowing fumes to come in. Couch that has seatbelts attached, metal is cut into two parts allowing seat belts to pull on separate metal bars that wou… | 1100.0%ODI 11750537The 2022 RAM Promaster 1500 was converted by Thor Industries to a 2024 Thor Scope 18M in spring 2023 before I purchased it from a dealer in Connecticut. However, information concerning this conversion was not shared with the federal government as the vehicle VIN still lists it as a Promaster 1500. This caused me to miss notification for NHTSA Campaign Number 25V792000 involving a potential travel hazard created by adhesive failure leading to solar panel detachment. While traveling south to St. Johns, New Brunswick, Canada on [XXX] on [XXX], … |
| Equipment | 125.0%ODI 11612518 · 35,000 miThe contact owns a 2021 Ram 1500 Promaster. The contact received notification of NHTSA Campaign Number: 23V068000 (Equipment) regarding the awning. The recall remedy had been completed at General RV Center (1577 Wells Rd, Orange Park, FL 32073). The contact stated that after having the recall repair completed, while driving less than 10 MPH, the contact heard the rotation sound indicating that the awning had deployed, landing into a tree and causing permanent damage to the awning. The contact had taken to the awning to the awning company and th… | 327.3%ODI 11430529 · 2,200 miThe contact owns a 2022 Thor Motor Coach Scope built on a 2021 Ram Promaster 1500 chassis. The contact stated that while driving at various speeds, an abnormal grinding noise would emit from the vehicle. The contact had taken the RV to several independent mechanics who informed her that the generator was improperly installed on the trailer. The generator had been installed below the axle and should have been installed above the axle. The contact was informed that the generator was a major safety hazard that could cause a potential failure. The … | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. |
| Electrical System | 00.0%No examples available for this selection. | 19.1%ODI 11484164This Thor Scope Class B RV is manufactured with two auxiliary batteries outside of and under the chassis to power electrical components in the RV. These batteries are not associated with the Promaster chassis/engine power and appear to be installed by the RV manufacturer. When the vehicle was delivered, there was a problem with battery charging in the auxiliary power system that was eventually traced to a cable that was supposed to connect the two auxiliary battery + terminals. That cable was connected two one battery but was left loose and di… | 1100.0%ODI 11518974Fuel line to generator is long rubber hose rubbing on screws. Same with electrical wires. Exhaust from generator and vehicle coming back in from exposed holes in floor under cabinetry. I have informed THOR motor coach. This vehicle is unsafe and could catch fire due to rubber fuel line leaking onto exposed electrical connections or exhaust. Holes in floor for tubes and electrical are not sealed allowing fumes to come in. Couch that has seatbelts attached, metal is cut into two parts allowing seat belts to pull on separate metal bars that wou… | 00.0%No examples available for this selection. |
| Back Over Prevention | 125.0%ODI 11762238I am filing a complaint regarding manufacturer non-compliance and dealership refusal to execute safety Recall 59C (NHTSA Campaign 25V552) on my 2019-2021 Ram ProMaster (Thor Scope 18m Class B RV upfit). The authorized dealership is refusing to perform a non-destructive repair on the vehicle, demanding instead to dismantle the built-in RV living space/bathroom structure at unknown risk and liability to the owner. Over a month ago, the dealership attempted to circumvent federal recall regulations by pressuring me to accept the uninstalled, loose… | 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:Electrical:Accessory Generator | 00.0%No examples available for this selection. | 19.1%ODI 11703377This is a Thor Scope RV built on the Promaster 1500 platform. The incident involves the Onan gasoline powered generator, which is directly connected to the fuel tank. Next to the generator in the fuel line, there is a small white inline fuel filter connected by the fuel hose going over a nipple on the filter and reinforced by a hose clamp. In my case, the hose clamp was not installed sufficiently over the nipple (far enough back on the fuel hose that it did not completely engage the nipple), and presumably from vibration associated with the gen… | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. |
| Equipment:Electrical:Accessory Generator:Solar Panel | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 1100.0%ODI 11750537The 2022 RAM Promaster 1500 was converted by Thor Industries to a 2024 Thor Scope 18M in spring 2023 before I purchased it from a dealer in Connecticut. However, information concerning this conversion was not shared with the federal government as the vehicle VIN still lists it as a Promaster 1500. This caused me to miss notification for NHTSA Campaign Number 25V792000 involving a potential travel hazard created by adhesive failure leading to solar panel detachment. While traveling south to St. Johns, New Brunswick, Canada on [XXX] on [XXX], … |
| Fuel System, Gasoline:Delivery | 00.0%No examples available for this selection. | 19.1%ODI 11703377This is a Thor Scope RV built on the Promaster 1500 platform. The incident involves the Onan gasoline powered generator, which is directly connected to the fuel tank. Next to the generator in the fuel line, there is a small white inline fuel filter connected by the fuel hose going over a nipple on the filter and reinforced by a hose clamp. In my case, the hose clamp was not installed sufficiently over the nipple (far enough back on the fuel hose that it did not completely engage the nipple), and presumably from vibration associated with the gen… | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. |
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 |
|---|---|---|---|---|
| Equipment | Too few reports for a range | 35,000 mi | 1 (sparse) | ODI 11612518 · 35,000 miThe contact owns a 2021 Ram 1500 Promaster. The contact received notification of NHTSA Campaign Number: 23V068000 (Equipment) regarding the awning. The recall remedy had been completed at General RV Center (1577 Wells Rd, Orange Park, FL 32073). The contact stated that after having the recall repair completed, while driving less than 10 MPH, the contact heard the rotation sound indicating that the awning had deployed, landing into a tree and causing permanent damage to the awning. The contact had taken to the awning to the awning company and th… |
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 |
|---|---|---|---|
| 2024-10 | 0 | None | No examples available for this selection. |
| 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 (partial) | 1 | None | ODI 11762238I am filing a complaint regarding manufacturer non-compliance and dealership refusal to execute safety Recall 59C (NHTSA Campaign 25V552) on my 2019-2021 Ram ProMaster (Thor Scope 18m Class B RV upfit). The authorized dealership is refusing to perform a non-destructive repair on the vehicle, demanding instead to dismantle the built-in RV living space/bathroom structure at unknown risk and liability to the owner. Over a month ago, the dealership attempted to circumvent federal recall regulations by pressuring me to accept the uninstalled, loose… |
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: 9 complaints · 2023: 1 complaints
| Model year | Through age 0 | Through age 1 | Through age 2 |
|---|---|---|---|
| 2022 | 3 | 7 | 9 |
| 2023 | 1 | 1 | 1 |
Date coverage across each selected cohort
| Year | Incident dates used | Filing date fallbacks | Excluded dates |
|---|---|---|---|
| 2022 | 10 | 0 | 1 |
| 2023 | 1 | 0 | 0 |
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 | Equipment:Recreational Vehicle/Trailer | Unknown Or Other | Back Over Prevention | Equipment |
|---|---|---|---|---|
| Equipment:Recreational Vehicle/Trailer | — | 2ODI 11491080My unit is a 2022 Thor Scope 18M Class B RV built on a RAM Promaster 1500 chassis. The problem is not with the chassis but the build by Thor. The solar panel on the roof is not secure and the aluminum panel is ripping through the bolts. I caught mine early and only one bolt ripped through, however, there are several reports on the THOR Rize/Scope Owners (Future Owners and WannaBees) Facebook page where the panel attachment failed and the solar panel came off the van while driving. ODI 11762238I am filing a complaint regarding manufacturer non-compliance and dealership refusal to execute safety Recall 59C (NHTSA Campaign 25V552) on my 2019-2021 Ram ProMaster (Thor Scope 18m Class B RV upfit). The authorized dealership is refusing to perform a non-destructive repair on the vehicle, demanding instead to dismantle the built-in RV living space/bathroom structure at unknown risk and liability to the owner. Over a month ago, the dealership attempted to circumvent federal recall regulations by pressuring me to accept the uninstalled, loose… | 1ODI 11762238I am filing a complaint regarding manufacturer non-compliance and dealership refusal to execute safety Recall 59C (NHTSA Campaign 25V552) on my 2019-2021 Ram ProMaster (Thor Scope 18m Class B RV upfit). The authorized dealership is refusing to perform a non-destructive repair on the vehicle, demanding instead to dismantle the built-in RV living space/bathroom structure at unknown risk and liability to the owner. Over a month ago, the dealership attempted to circumvent federal recall regulations by pressuring me to accept the uninstalled, loose… | 0 |
| Unknown Or Other | 2ODI 11491080My unit is a 2022 Thor Scope 18M Class B RV built on a RAM Promaster 1500 chassis. The problem is not with the chassis but the build by Thor. The solar panel on the roof is not secure and the aluminum panel is ripping through the bolts. I caught mine early and only one bolt ripped through, however, there are several reports on the THOR Rize/Scope Owners (Future Owners and WannaBees) Facebook page where the panel attachment failed and the solar panel came off the van while driving. ODI 11762238I am filing a complaint regarding manufacturer non-compliance and dealership refusal to execute safety Recall 59C (NHTSA Campaign 25V552) on my 2019-2021 Ram ProMaster (Thor Scope 18m Class B RV upfit). The authorized dealership is refusing to perform a non-destructive repair on the vehicle, demanding instead to dismantle the built-in RV living space/bathroom structure at unknown risk and liability to the owner. Over a month ago, the dealership attempted to circumvent federal recall regulations by pressuring me to accept the uninstalled, loose… | — | 1ODI 11762238I am filing a complaint regarding manufacturer non-compliance and dealership refusal to execute safety Recall 59C (NHTSA Campaign 25V552) on my 2019-2021 Ram ProMaster (Thor Scope 18m Class B RV upfit). The authorized dealership is refusing to perform a non-destructive repair on the vehicle, demanding instead to dismantle the built-in RV living space/bathroom structure at unknown risk and liability to the owner. Over a month ago, the dealership attempted to circumvent federal recall regulations by pressuring me to accept the uninstalled, loose… | 0 |
| Back Over Prevention | 1ODI 11762238I am filing a complaint regarding manufacturer non-compliance and dealership refusal to execute safety Recall 59C (NHTSA Campaign 25V552) on my 2019-2021 Ram ProMaster (Thor Scope 18m Class B RV upfit). The authorized dealership is refusing to perform a non-destructive repair on the vehicle, demanding instead to dismantle the built-in RV living space/bathroom structure at unknown risk and liability to the owner. Over a month ago, the dealership attempted to circumvent federal recall regulations by pressuring me to accept the uninstalled, loose… | 1ODI 11762238I am filing a complaint regarding manufacturer non-compliance and dealership refusal to execute safety Recall 59C (NHTSA Campaign 25V552) on my 2019-2021 Ram ProMaster (Thor Scope 18m Class B RV upfit). The authorized dealership is refusing to perform a non-destructive repair on the vehicle, demanding instead to dismantle the built-in RV living space/bathroom structure at unknown risk and liability to the owner. Over a month ago, the dealership attempted to circumvent federal recall regulations by pressuring me to accept the uninstalled, loose… | — | 0 |
| Equipment | 0 | 0 | 0 | — |
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.