NHTSA vehicle safety data
2021 Heartland Mallard Recalls & Complaints
The 2021 Heartland Mallard has 5 NHTSA recall campaigns and 3 owner complaints on file as of November 3, 2026. Recall repairs are usually free at an authorized Heartland dealer.
NHTSA recall and complaint data for the 2021 Heartland Mallard. Recall data is refreshed daily from NHTSA.
2021 Heartland Mallard owner complaints
Owners have filed 3 complaints with NHTSA about the 2021 Heartland Mallard, describing incidents dated August 10, 2021 to May 5, 2024.
Most-cited components
- Suspension 3 complaints
- Power Train 1 complaint
- Structure 1 complaint
Newest complaints
ODI #11590268 · Filed
Frame has broken in 2 locations at spring attachment bracket.
ODI #11573879 · Filed
Frame broke where leaf spring is attached to trailer.
ODI #11428502 · Filed
2021 HEARTLAND MALLARD. CONSUMER WRITES IN REAFRDS TO AXLE SAFETY RECALL. THE CONSUMER STATED THE LOWER METAL SIDING SEPARATED FROM THE TRAILER AND BEGAN SCRAPING THE TIRES. THE CONSUMER BELIEVED THIS WAS CAUSED BY THE LARGER TIRES RECOMMENDED BY THE RECALL NOTICE. THE VEHICLE WAS REPAIRED, BUT THE…
Refrigerator Roof Vent Not Routed Properly
NHTSA #21V557000 · Equipment — Appliance — Refrigerator · NHTSA notice
Reported July 22, 2021 · Heartland Recreational Vehicles, LLC
Potentially affected: 649 vehicles
Repair completion: 39.91% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)
Owners notified August 31, 2021
Defect description
Heartland Recreational Vehicles, LLC (Heartland) is recalling certain 2021 North Trail and Mallard recreational trailers. The refrigerator roof vents were not routed properly during production.
Safety consequence
An improperly routed vent may allow the refrigerator to overheat, increasing the risk of a fire. Further, exhaust gas trapped inside the vehicle can cause carbon monoxide poisoning, increasing the risk of injury or death.
Manufacturer remedy
Dealers will inspect the roof vent, and repair the vent sleeve connection if necessary, free of charge. Owner notification letters were mailed August 31, 2021. Owners may contact Heartland customer service at 1-877-262-8032.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Outside Cooktop Gas Lines Not Tightened Properly
NHTSA #21V453000 · Equipment — Appliance — Oven/Stove/Cooktop · NHTSA notice
Reported June 17, 2021 · Heartland Recreational Vehicles, LLC
Potentially affected: 2,486 vehicles
Repair completion: 28% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)
Owners notified August 10, 2021
Defect description
Heartland Recreational Vehicles, LLC (Heartland) is recalling certain 2021 Mallard, Wilderness, Trail Runner and 2020-2021 North Trail trailers. The LP gas lines may not have been tightened properly on the outside cooktops, which could result in a gas leak.
Safety consequence
A gas leak can increase the risk of a fire.
Manufacturer remedy
Dealers will inspect and tighten the LP gas lines, and test the propane system for leaks, free of charge. Owner notification letters were mailed August 10, 2021. Owners may contact Heartland customer service at 1-877-262-8032.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Propane Regulator May Fail and Cause Fire
NHTSA #21V428000 · Equipment — Recreational Vehicle/Trailer — LPG Systems · NHTSA notice
Reported June 4, 2021 · Heartland Recreational Vehicles, LLC
Potentially affected: 22,326 vehicles
Repair completion: 18.8% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)
Owners notified August 3, 2021
Defect description
Heartland Recreational Vehicles, LLC. (Heartland) is recalling certain 2018-2021 Mallard, Shadow Cruiser, Sundance XLTTT, Wilderness, Prowler, Trail Runner, 2018-2019 Pioneer, Terry Classic, 2020-2021 Lithium, and 2021 North Trail trailers equipped with a Winntec model 6020 two-stage propane regulator. The regulator may fail, causing an increase in propane pressure.
Safety consequence
Increased propane pressure can enlarge the flames in gas appliances, increasing the risk of a fire.
Manufacturer remedy
Dealers will replace the regulator and test the propane system for leaks, free of charge. Owner notification letters were mailed August 3, 2021. Owners may contact Heartland customer service at 1-877-262-8032.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Incorrect Axle, Rims And Tires Were Installed
NHTSA #21V009000 · Suspension — Multiple Axle · NHTSA notice
Reported January 14, 2021 · Heartland Recreational Vehicles, LLC
Potentially affected: 76 vehicles
Repair completion: 77.63% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)
Owners notified January 28, 2021
Defect description
Heartland Recreational Vehicles, LLC (Heartland) is recalling certain 2021 Mallard M180BH recreational trailers. These units had incorrect axle, rims, and tires installed during production.
Safety consequence
The incorrect axles, rims, and tires can cause the trailer to be overloaded, increasing the risk of a crash.
Manufacturer remedy
Heartland will notify owners, and dealers will replace the axle, rims, tires and the spare tire, free of charge. The recall began January 28, 2021. Owners may contact Heartland customer service at 1-877-262-8032.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
LP Hose and Connector In Path Of Shackle
NHTSA #20V486000 · Equipment · NHTSA notice
Reported August 18, 2020 · Heartland Recreational Vehicles, LLC
Potentially affected: 204 vehicles
Repair completion: 29.41% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)
Owners notified October 9, 2020
Defect description
Heartland Recreational Vehicles, LLC (Heartland) is recalling certain 2021 Mallard travel trailers. The liquid propane (LP) hose and connector may contact the suspension shackle.
Safety consequence
Contact with the shackle can cause premature failure of the LP hose, increasing the risk of a fire in the presence of an ignition source.
Manufacturer remedy
Heartland will notify owners, and dealers will relocate the hose to prevent the LP hose/connector from being able to make contact with the shackle. The recall began October 9, 2020. Owners may contact Heartland customer service at 1-877-262-8032.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Other Heartland Mallard model years
Check your 2021 Heartland Mallard VIN
Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Heartland Mallard at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.
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