RoadVitals

2021 Forest River Cardinal Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
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Latest Aug 13, 2025
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
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Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
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What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2021 Forest River Cardinal, 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 & structure1100.0%

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.

1
report

From owner reports, verbatim

Frame and Structural Integrity - Forest River Cardinal 366DLVE Doors and slide-outs open during transport. Cracks near the corners of upper deck slide openings. Separation of interior or exterior panels. Rub marks on floors under slide outs. Closet doors always coming off track in front bedroom. (cap) Excessive frame flex acknowledged by independent RV/trailer repair. Sawdust in the nose of the RV. Furniture rubbing walls or moving up and down or forward and back, every road trip. Unscrewing, loose, missing, or bent lag screws in the upper deck. Trim pieces on the front exterior move when hitched vs. unhitched. *Stress fractures in fiberglass on the side of the RV* Screws backing out and/or breaking on the slide in the upper deck. Cabinets pulling away from walls or ceiling. Trim pieces popping off or cracking due to shifting structure. (interior) Clunking or popping sounds when starting, stopping, or turning. Walls crinkling around windows and electrical outlets. Ceiling fan blades keep breaking. Tension rod curtains always drop out of window frame in transit. I have uploaded a few photos, additional photos upon request.

NHTSA ID 11680535 · filed Aug 13, 2025

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

Data on this page last refreshed .