NHTSA vehicle safety data

2018 Heartland Mallard Recalls & Complaints

The 2018 Heartland Mallard has 1 NHTSA recall campaign and 2 owner complaints on file as of November 3, 2026. Recall repairs are usually free at an authorized Heartland dealer.

NHTSA recall and complaint data for the 2018 Heartland Mallard. Recall data is refreshed daily from NHTSA.

2018 Heartland Mallard owner complaints

Owners have filed 2 complaints with NHTSA about the 2018 Heartland Mallard, describing incidents dated July 11, 2022 to August 21, 2022.

Most-cited components

Suspension 1 complaint
Trailer Hitches 1 complaint

Newest complaints

ODI #11480789 · Filed August 23, 2022
They trailer hitch that I have used with this travel trailer has begun to fail. The head tilt spacers are beginning to elongate and will reach failure with continued use. The manufacturer indicated that this would be caused by overloading or a sharp turn, but neither of those events have happened…
ODI #11478788 · Filed August 11, 2022
******* DELETE VOQ ******* THIS COMPLAINT IS BEING MARKED FOR DELETION BECAUSE THE CONSUMER PLACED THE REQUEST.*DJR ******* DELETE VOQ *******

Read all 2 complaints

Propane Regulator May Fail and Cause Fire

NHTSA #21V428000 · Equipment — Recreational Vehicle/Trailer — LPG Systems · NHTSA notice

Reported June 4, 2021 · Heartland Recreational Vehicles, LLC

Potentially affected: 22,326 vehicles

Repair completion: 18.8% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Owners notified August 3, 2021

Defect description

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.

Safety consequence

Increased propane pressure can enlarge the flames in gas appliances, increasing the risk of a fire.

Manufacturer 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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

try.vin has no NCAP crash-test rating on file for the 2018 Heartland Mallard. NHTSA rates some vehicles by body style — pickups by cab, vans by roof height — so check nhtsa.gov/ratings.

2 owner complaints have been filed with NHTSA for the 2018 Heartland Mallard.

Trailer Hitches

ODI #11480789

Incident: August 21, 2022 · Filed: August 23, 2022

They trailer hitch that I have used with this travel trailer has begun to fail. The head tilt spacers are beginning to elongate and will reach failure with continued use. The manufacturer indicated that this would be caused by overloading or a sharp turn, but neither of those events have happened. Luckily I caught the dialing part when I did, if the spacers would have failed the entire hitch could have failed. An internet search indicates that this premature failure is a known and common problem.

Suspension

ODI #11478788

Incident: July 11, 2022 · Filed: August 11, 2022

******* DELETE VOQ ******* THIS COMPLAINT IS BEING MARKED FOR DELETION BECAUSE THE CONSUMER PLACED THE REQUEST.*DJR ******* DELETE VOQ *******

Other Heartland Mallard model years

Check your 2018 Heartland Mallard VIN

Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Heartland Mallard at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.

Check a Heartland VIN