VehicleVerdict

2021 Heartland Mallard problems

Verdict · NHTSA data

Limited data — recalls on file

NHTSA has just 5 complaints on file for the 2021 Heartland Mallard — too few to judge reliability from owner reports alone — but 5 recall campaigns apply to this year, so any used example should have its VIN checked for completed recall work.

5

NHTSA complaints

5

Recalls

0

Investigations

0

Crash-involved

0

Fires reported

0

Injuries

0

Deaths

—

NCAP overall

How does 2021 compare to other Mallard years?

Mallard NHTSA complaints by model year, 2021 highlighted11 complaints2016: 0 complaints2017: 4 complaints2018: 2 complaints2019: 11 complaints2020: 0 complaints2021: 5 complaints2022: 0 complaints2023: 2 complaints2024: 0 complaints
Mallard NHTSA complaints by model year, 2021 highlighted. Red bars are years to avoid.

See all Mallard years to avoid →

What are the most common 2021 Heartland Mallard problems?

ComponentComplaintsShare
Suspension360%
Body & Structure120%
Transmission120%

Does the 2021 Heartland Mallard have recalls?

5 NHTSA recall campaigns on file. Recall repairs are free at franchised dealers.

21V557000OtherJuly 22, 2021 · 649 units

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.

21V453000OtherJune 17, 2021 · 2,486 units

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.

21V428000OtherJune 4, 2021 · 22,326 units

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 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.

21V009000Tires & WheelsJanuary 14, 2021 · 76 units

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.

20V486000OtherAugust 18, 2020 · 204 units

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.

Consumer complaints filed with NHTSA

Representative excerpts, cleaned of personal information. These are consumer statements, not verified defects.

“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…”

Complaint filed with NHTSA · Suspension · August 10, 2021

“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…”

Complaint filed with NHTSA · Transmission · August 10, 2021

2021 Heartland Mallard — common questions

Is the 2021 Heartland Mallard reliable?

The record is thin — 5 NHTSA complaints — so owner-report data can't strongly confirm reliability either way, though 5 recalls should be verified as completed.

Does the 2021 Heartland Mallard have recalls?

Yes — NHTSA lists 5 recall campaigns affecting the 2021 Heartland Mallard. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.