2021 Heartland Mallard problems, complaints & recalls

Updated from NHTSA data · How we count

Owners have filed 3 complaints with NHTSA about the 2021 Heartland Mallard, most often about suspension. There are 5 recalls for this model year.

Complaints
3
Recalls
5
Crashes
0
Fires
0
Injuries
0
Median mileage
—
at time of problem

Key facts

  • Suspension is the most-reported problem area, named in 3 of 3 complaints (100%).
  • Body & Structure (1) and transmission & drivetrain (1) follow.
  • The 2021 Heartland Mallard has 5 recalls on file.
  • It ranks 3rd of 4 Heartland Mallard model years by our severity-weighted complaint score (1st = worst).

2021 Heartland Mallard problems by category

  • Suspension
    3 complaints
  • Body & Structure
    1 complaints
  • Transmission & Drivetrain
    1 complaints

A complaint can mention more than one problem area, so categories add up to more than the total.

Most-reported components

Component (as filed with NHTSA)Complaints
Suspension2
Power train:axle assembly1
Structure1
Suspension:multiple axle1

2021 Heartland Mallard recalls (5)

  • Recall 21V557000Jul 22, 2021649 vehicles
    EQUIPMENT:APPLIANCE:REFRIGERATOR

    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.

    Risk: 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.

    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.

  • Recall 21V453000Jun 17, 20212,486 vehicles
    EQUIPMENT:APPLIANCE:OVEN/STOVE/COOKTOP · EQUIPMENT:RECREATIONAL VEHICLE/TRAILER:LPG SYSTEMS:LINES AND FITTINGS

    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.

    Risk: A gas leak can increase the risk of a fire.

    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.

  • Recall 21V428000Jun 4, 202122,326 vehicles
    EQUIPMENT:RECREATIONAL VEHICLE/TRAILER:LPG SYSTEMS

    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.

    Risk: Increased propane pressure can enlarge the flames in gas appliances, increasing the risk of a fire.

    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.

  • Recall 21V009000Jan 14, 202176 vehicles
    SUSPENSION:MULTIPLE AXLE · TIRES

    Heartland Recreational Vehicles, LLC (Heartland) is recalling certain 2021 Mallard M180BH recreational trailers. These units had incorrect axle, rims, and tires installed during production.

    Risk: The incorrect axles, rims, and tires can cause the trailer to be overloaded, increasing the risk of a crash.

    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.

  • Recall 20V486000Aug 18, 2020204 vehicles
    EQUIPMENT

    Heartland Recreational Vehicles, LLC (Heartland) is recalling certain 2021 Mallard travel trailers. The liquid propane (LP) hose and connector may contact the suspension shackle.

    Risk: 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.

    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.

Recent 2021 Heartland Mallard complaints

Excerpts of the newest owner complaints, lightly cleaned of personal details. Complaints are unverified owner reports.

  1. Filed Aug 10, 2021CASuspensionTransmission & Drivetrain
    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 failure recurred along with the trailer's delaminating. The dealer and manufacturer were made aware of the failure. The consumer referenced recall 21v-009.
    NHTSA complaint #11428502 · source

Compare the 2021 Heartland Mallard with another vehicle →

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data, as of Oct 11, 2026. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology