Recall 21V428000: 2019–2020 Cruiser Redundant Shadow Cruiser, 2018–2021 Cruiser RV Shadow Cruiser, 2020–2021 Heartland Lithium +8 more

Updated Oct 10, 2026 from NHTSA data · How we count

Report date: Jun 4, 2021
Vehicles affected: 22,326
Models: 11
Initiated by: Manufacturer

The problem

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.

The risk

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

The fix

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.

Affected vehicles

2019 Cruiser Redundant Shadow Cruiser
2020 Cruiser Redundant Shadow Cruiser
2018 Cruiser RV Shadow Cruiser
2021 Cruiser RV Shadow Cruiser
2020 Heartland Lithium
2021 Heartland Lithium
2018 Heartland Mallard
2019 Heartland Mallard
2020 Heartland Mallard
2021 Heartland Mallard
2021 Heartland North Trail
2018 Heartland Pioneer
2019 Heartland Pioneer
2018 Heartland Prowler
2019 Heartland Prowler
2020 Heartland Prowler
2021 Heartland Prowler
2018 Heartland Sundance
2019 Heartland Sundance
2020 Heartland Sundance
2021 Heartland Sundance
2018 Heartland Terry Classic
2019 Heartland Terry Classic
2018 Heartland Trail Runner
2019 Heartland Trail Runner
2020 Heartland Trail Runner
2021 Heartland Trail Runner
2018 Heartland Wilderness
2019 Heartland Wilderness
2020 Heartland Wilderness
2021 Heartland Wilderness

Details

NHTSA campaign: 21V428000
Manufacturer: Heartland Recreational Vehicles, LLC
Owner letters: Aug 3, 2021
Components: Equipment:recreational vehicle/trailer:lpg systems (Other / Unknown)

Recall repairs are free at authorized dealers. To see if your vehicle is included, enter your VIN at NHTSA.gov or call the manufacturer.

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. Methodology