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2021 Forest River Cardinal problems

The most common problem on the 2021 Forest River Cardinal is body and structure. Its complaint count is close to a typical Cardinal model year.

Typical yearClose to a typical year
Owner complaints
1
Recalls
6
Service bulletins
3
Worst area
Body

The worst 2021 Forest River Cardinal problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

  • Body
    1

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

  • Body
    1

Recalls 6

Equipment: electricalReported April 17, 2024 · 4,480 vehicles affected
What is wrong
Forest River, Inc. (Forest River) is recalling certain 2021-2022 Forest River Cardinal, Wildcat, 2018-2019 Cedar Creek, 2021 Columbus, 2023 Continental Cargo, 2021-2024 Dynamax DX3, Dynamax Dynaquest XL, Dynamax Isata, Forest River IBEX, 2022-2024 Dynamax Europa, Forest River NOBO, 2022-2023 Forest River Sandstorm, Shockwave, Stealth, and 2021-2023 Dynamax Force trailers. The LED backlight circuit board in the cooktop range may fail, causing the board to overheat.
Risk
A circuit board that overheats increases the risk of a fire.
Remedy
Dealers will disconnect and cut the circuit powering the LED backlights and terminate the wiring, free of charge. Owner notification letters were mailed by May 14, 2024. Owners may contact Suburban customer service at 1‑574‑247‑9235 option 5; Cardinal & Wildcat customer service at 1‑574‑296‑7700; Cedar Creek customer service at 1‑260‑593‑4000; Columbus customer service at 1‑574‑821‑1487; Continental Cargo customer service at 1‑254‑420‑0171; Dynamax customer service at 1‑574‑264‑6664; Ibex & Nobo customer service at 1-574-6421612; and Sandstorm & Shockwave customer service at 1‑909‑873‑3777. Forest River's number for this recall is 51-1760.

Recall number 24V272000 · Recall details

Tires: tread/beltReported January 7, 2022 · 1,164 vehicles affected
What is wrong
Forest River, Inc. (Forest River) is recalling certain 2021-2022 Prime Time Sanibel, Crusader, Forest River Cardinal, and Continental Cargo fifth wheel trailers, equipped with certain Sailun tires, size ST235/80R16/G. Due to a manufacturing issue, the tires may experience a belt separation.
Risk
Belt separation could lead to loss of vehicle control, increasing the risk of a crash.
Remedy
Dealers will inspect the tire DOT codes, and replace the tires as necessary, free of charge. Owner notification letters were mailed February 1, 2022. Owners may contact Forest River customer service at 1‑574‑825‑4995. Forest River's number for this recall is 51-1449.

Recall number 22V004000 · Recall details

Equipment: electrical: accessory generatorReported December 17, 2021 · 111 vehicles affected
What is wrong
Forest River, Inc. (Forest River) is recalling certain 2020-2022 Cardinal fifth wheel recreational vehicles. The generator compartment may not be sealed properly, allowing carbon monoxide to enter the vehicle.
Risk
Carbon monoxide inside the vehicle can increase the risk of injury or death.
Remedy
Dealers will inspect the generator compartment for proper sealant and apply sealant if necessary, free of charge. Owner notification letters were mailed January 5, 2022. Owners may contact Forest River customer service at 1‑574‑296‑7700. Forest River's number for this recall is 15-1444.

Recall number 21V988000 · Recall details

Equipment: recreational vehicle/trailerReported March 8, 2021 · 309 vehicles affected
What is wrong
Forest River, Inc. (Forest River) is recalling certain 2021 Cardinal and Wildcat Fifth Wheels trailers. The spare tire carrier may be installed incorrectly, allowing it to detach from the vehicle.
Risk
A detached spare tire carrier can increase the risk of a crash or injury.
Remedy
Forest River will notify owners, and dealers will secure the spare tire carrier, free of charge. The recall began March 24, 2021. Owners may contact Forest River Customer Service at 1‑574‑296‑7700. Forest River's number for this recall is 15-1304.

Recall number 21V145000 · Recall details

EquipmentReported March 5, 2021 · 21 vehicles affected
What is wrong
Forest River, Inc. (Forest River) is recalling certain 2021 Cardinal CAF345RLX, CAF366DVLE, CAF390FBX and 2021 Wildcat WCF336RLS, WCF368MB vehicles. The furnace flue may become misaligned due to insufficient furnace hold screws that allow movement during travel.
Risk
A misaligned furnace flue can allow furnace exhaust to leak into the living space, increasing the risk of injury or death.
Remedy
Forest River will notify owners, and dealers will secure the furnace and align the flue, free of charge. The recall began March 24, 2021. Owners may contact Forest River customer service at 1‑574‑296‑7700. Forest River's number for this recall is 15-1302.

Recall number 21V141000 · Recall details

Equipment: recreational vehicle/trailer: lpg systems: furnaceReported October 26, 2020 · 69 vehicles affected
What is wrong
Forest River, Inc. (Forest River) is recalling certain 2021 Cardinal fifth wheel trailers. The fresh air intake sleeve for the furnace is too short and does not have proper connection of the furnace to the exterior, allowing furnace exhaust to enter the trailer.
Risk
If exhaust enters the trailer, it can cause carbon monoxide poisoning, which can increase the risk of injury or death.
Remedy
Forest River will notify owners, and dealers will install the correct intake sleeve to allow for proper connection on the furnace, free of charge. The recall began November 6, 2020. Owners may contact Forest River customer service at 1‑574‑296‑7700. Forest River's number for this recall is 15-1245.

Recall number 20V655000 · Recall details

See all 6 recalls for the 2021 Forest River Cardinal

Technical service bulletins for the 2021 Forest River Cardinal 3

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

What 2021 Forest River Cardinal owners say

Most recent owner complaints, unedited.

Filed Aug 13, 2025 · Body · TX

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.

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Questions about the 2021 Forest River Cardinal

Is the 2021 Forest River Cardinal reliable?

Owners have filed 1 complaint about the 2021 Forest River Cardinal, close to a typical Cardinal model year.

What is the most common problem with the 2021 Forest River Cardinal?

Body and structure, with 1 complaint.

How many recalls does the 2021 Forest River Cardinal have?

6 recalls, covering equipment and tires.

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