How many recall campaigns are listed for the 2021 Heartland Mallard?

5 campaign records are listed in this dataset for this make, model, and model year.

Does this page confirm that my vehicle is affected?

No. This model-level record is not a VIN lookup and does not determine vehicle eligibility or repair status. Check official NHTSA resources for the vehicle identification number.

Where do the campaign summaries come from?

The summaries and related details are shown from public NHTSA recall records. The local dataset was retrieved 2026-11-01.

Vehicle recall record

2021 Heartland Mallard

5 recall campaigns · 2020–2021 · 0 with a do-not-park-indoors warning

Campaigns: 5
First notice: 2020-08-18
Latest notice: 2021-07-22
Same-make model-year average: 4.0

Risk markers carried in the record

No park-it or park-outside warning is flagged in this vehicle's collected record. This does not establish that the vehicle is defect-free or that every notice is included.

The markers above summarize fields available in this dataset. A missing marker is not a safety finding. Recall status and remedy eligibility can depend on vehicle identification number, equipment, production date, and whether a repair has already been completed.

Recall distribution by component

2 component categories

Counts and shares use the vehicle-level recall records shown below. The horizontal bar is scaled to the largest category on this page.
Component	Campaigns	Share	Relative volume
EQUIPMENT	4	80.0%
SUSPENSION	1	20.0%

Component labels follow the source record's component field. Where the source includes a more detailed subcomponent after a colon, this distribution groups the record under the first component segment. Shares are calculated against 5 campaigns and rounded to one decimal place, so displayed percentages may not sum to exactly 100 percent.

Recall dates by calendar year

2 calendar years

These are recall notice dates, not vehicle model years.
Calendar year	Campaigns	Relative volume
2020	1
2021	4

The timeline groups campaign records by their reported recall date. This explains why the date range (2020–2021) can begin before or end after model year 2021. The underlying vehicle may be covered by notices issued in several different calendar years.

Recall campaign details

5 vehicle-level records

Campaign summaries, consequences, and remedies are preserved from the collected NHTSA source text.
Campaign	Date	Component	Summary and source details	Flags
21V557000	2021-07-22	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. Read the complete source text Summary 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.	No listed flag
21V453000	2021-06-17	EQUIPMENT:APPLIANCE:OVEN/STOVE/COOKTOP	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 out… Read the complete source text Summary 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.	No listed flag
21V428000	2021-06-04	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,… Read the complete source text Summary 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. 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.	No listed flag
21V009000	2021-01-14	SUSPENSION:MULTIPLE AXLE	Heartland Recreational Vehicles, LLC (Heartland) is recalling certain 2021 Mallard M180BH recreational trailers. These units had incorrect axle, rims, and tires installed during production. Read the complete source text Summary 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.	No listed flag
20V486000	2020-08-18	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. Read the complete source text Summary 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.	No listed flag

Each row represents a campaign listed for this make, model, and model year. A campaign can also cover other vehicles. The excerpt above is a direct beginning of the source summary; expand a row to read the complete summary and any consequence or remedy text included in the local record.

How 2021 Heartland Mallard compares within Heartland

2 listed 2021 model-year records

Other collected Heartland records for model year 2021.
Vehicle	Campaigns	Date range
Heartland Cyclone	3	2020-08-28–2022-01-20

This comparison is calculated from vehicle records for the same make and model year in this snapshot. It is a simple arithmetic average, not an industry benchmark. A model may appear under more than one configuration in the source data, and campaign counts do not indicate the probability that a specific vehicle has an unresolved defect.

Data source and interpretation

NHTSA Office of Defects Investigation, retrieved 2026-11-01. Recall records reflect manufacturer reports submitted to NHTSA. Absence of a recall here does not mean a vehicle is defect-free.

This page reports 5 campaign records, groups them into 2 component categories, and places the notice dates into these calendar years: 2020: 1; 2021: 4. These are derived views of the supplied records, not additional findings from NHTSA.

The collection includes model-year records with one or more recalls. It is not a complete vehicle history, VIN eligibility result, repair-status check, safety rating, or guarantee that the source has no later updates. Confirm current campaign details and vehicle applicability with official NHTSA information and the manufacturer.