2023 Thor Motor Coach Four Winds Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2023 Thor Motor Coach Four Winds, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Body & structure150.0%
- Other / unspecified150.0%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Body & structure
Reports naming the vehicle structure, frame, body panels, doors, hood and trim.
From owner reports, verbatim
[XXX] U.S. Army), Active-Duty Service Member (Stationed at Fort Knox, KY / Residing in Brandenburg, KY) I am reporting a severe structural manufacturing defect involving the room slide-out assembly on the driver-side flank of the vehicle body. Certified diagnostic testing and structural tolerance layouts executed by the component manufacturer, Lippert (LCI Case #[XXX]), and servicing dealership technicians (Camping World) have confirmed that the main slide-out housing and framing elements were installed, aligned, and integrated completely out of structural tolerance directly at the Thor Motor Coach assembly plant during production. This structural defect constitutes an uncorrectable manufacturing deviation. Because the slide-out mechanism is fundamentally misaligned within the main load-bearing sidewall of the motorhome, it repeatedly binds, undergoes severe component stress, and fails to close or seat flush against the secondary seals. Operating a 11,000lb+ commercial-chassis motorhome with a structurally out-of-tolerance slide-out housing introduces substantial safety hazards to public highways: Catastrophic Unintended Deployment: The mechanical stress and structural warping prevent the locking mechanisms and gear teeth from seating safely. Vibration at highway speeds risks structural latch failure, which could result in a partial or full unintended slide-out deployment while traveling at high speeds. Because the slide-out frame cannot close symmetrically, the structural integrity of the main driver-side wall is severely degraded. This creates asymmetrical aerodynamic drag and hazardous crosswind vulnerability, risking dynamic instability and potential vehicle roll-overs or lane-drift. In the event of an evasive driving maneuver, the shifting, misaligned mass of the slide-out can cause unpredictable chassis twisting and severe stability control failures, endangering my passengers and sharing motorists. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Too few reports in this category for a page of its own — they appear in the full complaint list.
Other / unspecified
Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.
From owner reports, verbatim
[XXX] U.S. Army), Active-Duty Service Member (Stationed at Fort Knox, KY / Residing in Brandenburg, KY) I am reporting a severe structural manufacturing defect involving the room slide-out assembly on the driver-side flank of the vehicle body. Certified diagnostic testing and structural tolerance layouts executed by the component manufacturer, Lippert (LCI Case #[XXX]), and servicing dealership technicians (Camping World) have confirmed that the main slide-out housing and framing elements were installed, aligned, and integrated completely out of structural tolerance directly at the Thor Motor Coach assembly plant during production. This structural defect constitutes an uncorrectable manufacturing deviation. Because the slide-out mechanism is fundamentally misaligned within the main load-bearing sidewall of the motorhome, it repeatedly binds, undergoes severe component stress, and fails to close or seat flush against the secondary seals. Operating a 11,000lb+ commercial-chassis motorhome with a structurally out-of-tolerance slide-out housing introduces substantial safety hazards to public highways: Catastrophic Unintended Deployment: The mechanical stress and structural warping prevent the locking mechanisms and gear teeth from seating safely. Vibration at highway speeds risks structural latch failure, which could result in a partial or full unintended slide-out deployment while traveling at high speeds. Because the slide-out frame cannot close symmetrically, the structural integrity of the main driver-side wall is severely degraded. This creates asymmetrical aerodynamic drag and hazardous crosswind vulnerability, risking dynamic instability and potential vehicle roll-overs or lane-drift. In the event of an evasive driving maneuver, the shifting, misaligned mass of the slide-out can cause unpredictable chassis twisting and severe stability control failures, endangering my passengers and sharing motorists. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .