HEARTLAND MALLARD (2021) recall — Equipment
Heartland is recalling 2021 Mallard trailers due to improper vent routing causing overheating and fire risk, plus carbon monoxide poisoning. Owners should contact customer service for free repairs.
Use caution until it’s fixed
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.
Contact the company & request your remedy
What happened, in plain English
Heartland is recalling certain 2021 Mallard recreational trailers because their refrigerator roof vents were not installed correctly. This can cause overheating leading to fire, and trapped exhaust gas causing carbon monoxide poisoning which risks injury or death. Read more at govinfonow.com/recall/80455-heartland-2021-mallard-recreational-trailers-fire-and-co-poisoning-risk.
Source Summary by GovInfoNow · govinfonow.com/recall/80455-heartland-2021-mallard-recreational-trailers-fire-and-co-poisoning-risk · Updated October 4, 2026 · Official notice: NHTSA #21V557000
Cite this page
“Heartland 2021 Mallard Recreational Trailers: Fire and CO Poisoning Risk.” GovInfoNow, updated October 4, 2026. https://govinfonow.com/recall/80455-heartland-2021-mallard-recreational-trailers-fire-and-co-poisoning-risk. Based on NHTSA recall #21V557000 (https://www.nhtsa.gov/recalls?nhtsaId=21V557000).
Why it’s dangerous
The refrigerator roof vents were not routed properly during production. This allows the refrigerator to overheat, increasing fire risk. Trapped exhaust gas inside the vehicle can also cause carbon monoxide poisoning, which may lead to injury or death.
Who’s affected
Owners of 2021 Heartland Mallard recreational trailers are affected. Those who use the refrigerator in the trailer are most at risk.
How to tell if you have this one
Check for 2021 Heartland Mallard recreational trailers. The issue was discovered during production and affects the refrigerator roof vents.
- Brand
Heartland- Category
Vehicle
What to do — step by step
Contact Customer Service
Call Heartland customer service at 1-877-262-8032 to schedule a free repair.
Get Vent Inspection
Dealers will inspect the roof vent and repair the vent sleeve connection if necessary at no cost.
What NHTSA says to do
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.
Questions people ask
Why is this recall happening?
The refrigerator roof vents were not routed properly during production, which can cause overheating and fire risk, plus carbon monoxide poisoning.
How can I tell if my trailer is affected?
Check if you own a 2021 Heartland Mallard recreational trailer. The issue affects the refrigerator roof vents.
What should I do if I have the affected trailer?
Dealers will inspect the roof vent and repair the vent sleeve connection if necessary at no cost. Contact Heartland customer service at 1-877-262-8032.
Contact Heartland
We’ve drafted a message you can send Heartland to request your refund or repair — edit it as you like.
Subject: Recall 21V557000 — Heartland Heartland Hello, I own a Heartland that is covered by recall 21V557000 from Heartland. The official recall notice states: 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. I’m writing to arrange the remedy described in the recall (a refund, repair, or replacement as applicable). Could you please tell me the next steps to resolve this? Thank you.
Similar recalls
Keep exploring
From people who’ve dealt with this
Experiences, tips, and questions from readers. Every comment is reviewed before it appears.
No comments yet — be the first to share your experience.
Where this comes from
The facts (hazard, remedy, dates, manufacturer) are pulled from the official NHTSA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
- Official source: NHTSA Recall #21V557000 (July 22, 2021)
- Plain-language summary written by qwen3:4b on October 4, 2026, from the official record above. Not reviewed by a person — if it conflicts with the NHTSA notice, the notice is correct. Report an error on this page.
- GovInfoNow is an independent service and is not a government agency. We republish official NHTSA recall data; we don’t issue, amend or administer recalls.