RecallRepo

2021 Heartland Mallard Recalls

Recalls on record Updated July 2026

The 2021 Heartland Mallard has 5 NHTSA recall campaigns affecting an estimated 25,741 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 5 complaints with NHTSA, most often about the suspension. Last updated July 5, 2026.

Recall campaigns

EQUIPMENT 21V557000 2021-07-22 649 affected
Defect

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.

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.

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.

EQUIPMENT 21V453000 2021-06-17 2,486 affected
Defect

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.

Consequence

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.

EQUIPMENT 21V428000 2021-06-04 22,326 affected
Defect

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…

Consequence

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.

TIRES 21V009000 2021-01-14 76 affected
Defect

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

Consequence

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.

EQUIPMENT 20V486000 2020-08-18 204 affected
Defect

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

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.

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.

Complaints by component

SUSPENSION
2
POWER TRAIN:AXLE ASSEMBLY
1
STRUCTURE
1
SUSPENSION:MULTIPLE AXLE
1
Total complaints5

What owners report

Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.

“Frame has broken in 2 locations at spring attachment bracket.”

SUSPENSION · reported 2024-05-05

“Frame broke where leaf spring is attached to trailer.”

SUSPENSION · reported 2024-01-31

“Frame broke where leaf spring is attached to trailer.”

STRUCTURE · reported 2024-01-31

“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…”

POWER TRAIN:AXLE ASSEMBLY · reported 2021-08-10

“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…”

SUSPENSION:MULTIPLE AXLE · reported 2021-08-10
Sources & methodology

Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2021 Heartland Mallard as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.