2021 Heartland MALLARD: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
3 owner complaints analyzed
5 distinct recall campaigns
Not available median reported failure mileage
Scope: 2021 model year. Data updated: . 0 complaints include usable failure mileage. View data status.
Most common problems
Suspension is the most frequently named component, appearing in 2 of 3 complaints (66.7%). A complaint can name multiple components.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Suspension | 2 |
| Power Train:Axle Assembly | 1 |
| Structure | 1 |
| Suspension:Multiple Axle | 1 |
Suspension: 2; Power Train:Axle Assembly: 1; Structure: 1; Suspension:Multiple Axle: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 0 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 0; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
No usable failure mileage is recorded. 3 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2021 | 1 |
| 2024 | 2 |
2021: 1; 2024: 2
Pattern summary
Suspension leads the component reports. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Examples from the source records
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11428502 · 2021-08-10 (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 FAILURE RECURRED ALONG WITH THE TRAILER'S DELAMINATING. THE DEALER AND MANUFACTURER WERE MADE AWARE OF THE FAILURE. THE CONSUMER REFERENCED RECALL 21V-009.
Owner-reported narrative. Look up ODI 11428502 at NHTSA ↗
Owner report 11573879 · 2024-02-25 (February 25, 2024)
Frame broke where leaf spring is attached to trailer.
Owner-reported narrative. Look up ODI 11573879 at NHTSA ↗
Owner report 11590268 · 2024-05-22 (May 22, 2024)
Frame has broken in 2 locations at spring attachment bracket.
Owner-reported narrative. Look up ODI 11590268 at NHTSA ↗
Recall history
5 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.
20V486000 · Equipment
Reported: 2020-08-18 (August 18, 2020)
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.
NHTSA campaign record ↗21V009000 · Tires | Suspension:Multiple Axle
Reported: 2021-01-14 (January 14, 2021)
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.
NHTSA campaign record ↗21V428000 · Equipment:Recreational Vehicle/Trailer:Lpg Systems
Reported: 2021-06-04 (June 4, 2021)
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.
NHTSA campaign record ↗21V453000 · Equipment:Appliance:Oven/Stove/Cooktop | Equipment:Recreational Vehicle/Trailer:Lpg Systems:Lines And Fittings
Reported: 2021-06-17 (June 17, 2021)
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.
NHTSA campaign record ↗21V557000 · Equipment:Appliance:Refrigerator
Reported: 2021-07-22 (July 22, 2021)
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.
NHTSA campaign record ↗Vehicle analysis explorer
Inspect model-year patterns, reported mileage, monthly activity and the evidence behind each signal.
Data completeness
3 unique complaints in this selection. Analysis snapshot: 2026-10-01.
Missing, zero and invalid mileage is excluded. Dates after the snapshot are excluded. Examples are limited selections, not a representative sample.
Problems by model year
Model-wide comparison of the eight most reported components across the model. Cells show counts and shares within each model year. Open a cell for source examples.
| Component | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|
| Electrical System | 0UnavailableNo examples available for this selection. | 250.0%ODI 10911218 · 300 miTL* THE CONTACT OWNS A 2017 HEARTLAND MALLARD. THE CONTACT STATED THAT AFTER THE VEHICLE WAS PARKED OVER 24 HOURS, IT WAS INFORMED THAT THE VEHICLE CAUGHT ON FIRE. A FIRE REPORT WAS FILED AND IT WAS DETERMINED THAT THE FIRE ORIGINATED FROM THE LED LIGHTS. THE FIRE WAS EXTINGUISHED OUT BY ANOTHER OBSERVANT CONTACT. NO INJURIES WERE SUSTAINED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 16V566000 (ELECTRICAL SYSTEM). THE MANUFACTURER WAS ATTEMPTED TO BE REACHED BUT WAS NOT NOTIFIED. THE FAILED MI… | 00.0%No examples available for this selection. | 116.7%ODI 11474132Camping World did a warranty axle repair in March 2021. During this repair, they mounted the axle but did not connect the electrics - I have pictures of coiled wires they left after mounting the new axle. This meant that the rear axle did not have the electric brakes, or the emergency breakaway disconnect. I had a electrician crimp the brakes during a trip in april 2021, after I discovered this. Since I'm not a technician, I did not know that the emergency breakaway also needed to be connected. It remains unconnected to this day. The emer… | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. |
| Suspension | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 150.0%ODI 11478788 · 900 mi******* DELETE VOQ ******* THIS COMPLAINT IS BEING MARKED FOR DELETION BECAUSE THE CONSUMER PLACED THE REQUEST.*DJR ******* DELETE VOQ ******* | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 266.7% | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. |
| Unknown Or Other | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 233.3%ODI 11532337My Mallard 25 manufactured by Heartland was in the shop for another issue (black water tank). As they removed the under-belly, they noticed 4 cracks/fractures in the I-Beam on both sides behind all 4 wheels. The cracks vary in length. They told me to contact Heartland to see what can be done. I have done that and have received no response. I believe this is a dangerous driving condition and that NHTSA should be notified immediately. Kennedy’s RV technicians will confirm their findings through pictures. I also have copies of the pictures. Thank … | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 1100.0%ODI 116600169 month old travel trailer fridge caught fire upon startup this season. May4th | 0UnavailableNo examples available for this selection. |
| Wheels | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 350.0%ODI 112566812019 HEARTLAND MALLARD M280 VIN [XXX] - BOUGHT JUNE 12, 2018 FROM CAMPING WORLD IN MONTICELLO, MN. ONLY USED ON 10 LOCAL CAMPING TRIPS. LOUD SQUEAKING FROM WHEELS - BROUGHT TO HILLTOP RV IN ROCHESTER, MN ON MONDAY SEPT 16, 2019. SERVICE REMOVED THE TIRE AND THE BRAKE DRUM FELL OFF. LUCKY THIS DID NOT OCCUR WHILE DRIVING AND CAUSED SEVERE ACCIDENT OR DEATH. MIGHT WANT TO INCLUDE MORE UNITS IN YOUR RECALL AS MINE WOULD BE CONSIDERED OUT OF THIS TIME FRAME - HTTP://WWW.ARFC.ORG/RVS/HEARTLAND/MALLARD/RECALLS/000091506003664723000000058/RECALL.… | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. |
| Equipment:Recreational Vehicle/Trailer | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 116.7%ODI 112566812019 HEARTLAND MALLARD M280 VIN [XXX] - BOUGHT JUNE 12, 2018 FROM CAMPING WORLD IN MONTICELLO, MN. ONLY USED ON 10 LOCAL CAMPING TRIPS. LOUD SQUEAKING FROM WHEELS - BROUGHT TO HILLTOP RV IN ROCHESTER, MN ON MONDAY SEPT 16, 2019. SERVICE REMOVED THE TIRE AND THE BRAKE DRUM FELL OFF. LUCKY THIS DID NOT OCCUR WHILE DRIVING AND CAUSED SEVERE ACCIDENT OR DEATH. MIGHT WANT TO INCLUDE MORE UNITS IN YOUR RECALL AS MINE WOULD BE CONSIDERED OUT OF THIS TIME FRAME - HTTP://WWW.ARFC.ORG/RVS/HEARTLAND/MALLARD/RECALLS/000091506003664723000000058/RECALL.… | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 1100.0%ODI 116600169 month old travel trailer fridge caught fire upon startup this season. May4th | 0UnavailableNo examples available for this selection. |
| Service Brakes | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 233.3%ODI 112566812019 HEARTLAND MALLARD M280 VIN [XXX] - BOUGHT JUNE 12, 2018 FROM CAMPING WORLD IN MONTICELLO, MN. ONLY USED ON 10 LOCAL CAMPING TRIPS. LOUD SQUEAKING FROM WHEELS - BROUGHT TO HILLTOP RV IN ROCHESTER, MN ON MONDAY SEPT 16, 2019. SERVICE REMOVED THE TIRE AND THE BRAKE DRUM FELL OFF. LUCKY THIS DID NOT OCCUR WHILE DRIVING AND CAUSED SEVERE ACCIDENT OR DEATH. MIGHT WANT TO INCLUDE MORE UNITS IN YOUR RECALL AS MINE WOULD BE CONSIDERED OUT OF THIS TIME FRAME - HTTP://WWW.ARFC.ORG/RVS/HEARTLAND/MALLARD/RECALLS/000091506003664723000000058/RECALL.… | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. |
| Equipment | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 116.7%ODI 11454821The contact owns a 2019 Heartland Mallard M27 RV equipped with a Dometic AC unit, Manufacturer number: B57915.711J0, Serial number: 73826296, and Product number: 936002207. The contact stated while he was asleep, he started to smell a burning odor entering through the AC vents. The contact stated he turned off the AC unit and the power. The contact was able to continue sleeping and the odor went away. The contact stated no one was injured or sought medical attention. The contact stated that the electrical wire connectors to the compressor on th… | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. |
| Equipment:Mechanical:Slide-In Camper | 0UnavailableNo examples available for this selection. | 125.0%ODI 10984966TL* THE CONTACT OWNS A 2017 HEARTLAND MALLARD RV. THE CONTACT STATED THAT THE SLIDE PULLEY CABLE SYSTEM THAT OPERATED ALL THREE SIDES HAD DETACHED FROM THE WALL DUE TO A MECHANICAL DEFECT. THE CONTACT STATED THAT THE OTHER TWO SLIDE PULLEYS WERE ALSO DETACHING FROM THE WALL. THE VEHICLE WAS TOWED TO THE DEALER WHERE IT WAS DIAGNOSED THAT ALL THREE OF THE SLIDE PULLEY MECHANICAL SYSTEMS FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED THE CONTACT THAT THEY WOULD TAKE FULL… | 00.0%No examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. | 00.0%No examples available for this selection. | 0UnavailableNo examples available for this selection. |
Darker cells indicate a larger share of submitted complaints. Components overlap. This measures complaint composition, not failure probability.
Failure mileage by component
Median and middle 50% of usable owner-reported mileages. Ranges require at least five records.
| Component | Mileage range (25th–75th percentile) | Median | Usable records | Examples |
|---|---|---|---|---|
| No usable records for this analysis. | ||||
Complaint and recall timeline
Explore monthly filing activity alongside recall announcements. Up to ten years of monthly history is available.
Solid line: filed complaints. Dashed amber lines: recall announcement dates for this vehicle selection; markers include all recall components. The latest month is partial. Temporal proximity does not establish causation.
Monthly counts, recall campaigns and complaint examples
| Month | Complaints | Campaigns announced | Examples |
|---|---|---|---|
| 2024-11 | 0 | None | No examples available for this selection. |
| 2024-12 | 0 | None | No examples available for this selection. |
| 2025-01 | 0 | None | No examples available for this selection. |
| 2025-02 | 0 | None | No examples available for this selection. |
| 2025-03 | 0 | None | No examples available for this selection. |
| 2025-04 | 0 | None | No examples available for this selection. |
| 2025-05 | 0 | None | No examples available for this selection. |
| 2025-06 | 0 | None | No examples available for this selection. |
| 2025-07 | 0 | None | No examples available for this selection. |
| 2025-08 | 0 | None | No examples available for this selection. |
| 2025-09 | 0 | None | No examples available for this selection. |
| 2025-10 | 0 | None | No examples available for this selection. |
| 2025-11 | 0 | None | No examples available for this selection. |
| 2025-12 | 0 | None | No examples available for this selection. |
| 2026-01 | 0 | None | No examples available for this selection. |
| 2026-02 | 0 | None | No examples available for this selection. |
| 2026-03 | 0 | None | No examples available for this selection. |
| 2026-04 | 0 | None | No examples available for this selection. |
| 2026-05 | 0 | None | No examples available for this selection. |
| 2026-06 | 0 | None | No examples available for this selection. |
| 2026-07 | 0 | None | No examples available for this selection. |
| 2026-08 | 0 | None | No examples available for this selection. |
| 2026-09 | 0 | None | No examples available for this selection. |
| 2026-10 (partial) | 0 | None | No examples available for this selection. |
Emerging complaint spikes
Complete months in the latest six months with at least 10 complaints, at least twice the preceding 12-month average, and at least three square-root deviations above that average.
This is a descriptive screening rule, not a statistical defect finding. Publicity and reporting changes can increase submissions.
No complete months meet the spike thresholds for this selection.
Equal-age model-year comparison
Model-wide cumulative reports during the first three or five calendar years, starting with the model year (age 0). Only fully elapsed windows are compared.
2022: 0 complaints · 2023: 1 complaints
| Model year | Through age 0 | Through age 1 | Through age 2 |
|---|---|---|---|
| 2022 | 0 | 0 | 0 |
| 2023 | 0 | 0 | 1 |
Date coverage across each selected cohort
| Year | Incident dates used | Filing date fallbacks | Excluded dates |
|---|---|---|---|
| 2022 | 0 | 0 | 0 |
| 2023 | 1 | 0 | 0 |
Incident date is preferred when valid and no later than filing; otherwise filing date is used. Model year approximates age. Equal observation time does not adjust for sales, distance driven or reporting delays. One complaint linked to multiple model years can appear in each cohort.
Components reported together
Each cell counts unique complaints naming both components. Open a nonzero cell for examples.
| Component | Suspension | Power Train:Axle Assembly | Structure | Suspension:Multiple Axle |
|---|---|---|---|---|
| Suspension | — | 0 | 1 | 0 |
| Power Train:Axle Assembly | 0 | — | 0 | 1ODI 114285022021 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. |
| Structure | 1 | 0 | — | 0 |
| Suspension:Multiple Axle | 0 | 1ODI 114285022021 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. | 0 | — |
Co-reporting does not establish that one component caused another concern.
Recurring narrative patterns
Specific keyword mentions beyond broad component labels. Matching includes negations and comparisons and does not confirm a diagnosis.
0 patterns with matching reports.
No narratives match the published patterns.