Recall 26V-603: 2026–2027 Dynamax Grand Sport GT
Forest River, Inc. recall for fuel system, diesel, reported to NHTSA on Sep 21, 2026, covering about 16 vehicles.
The problem
Forest River, Inc (Forest River) is recalling certain 2026-2027 Dynamax Grand Sport GT recreational vehicles. The engine pre-heat pump may have been improperly installed, causing the coolant hose to fail.
The risk
A coolant hose failure can cause the engine to overheat, increasing the risk of a crash.
The fix
Dealers will re-pin the wiring harness, re-route the coolant hoses, and replace parts as necessary, free of charge. Owner notification letters were mailed October 20, 2026. Owners may contact Forest River customer service at 1-574-522-1583. Forest River's number for this recall is 40-2097.
Recall details
| Manufacturer | Forest River, Inc. |
|---|---|
| Component | Fuel System, Diesel › Pre-Heater |
| Recall started by | the manufacturer |
| NHTSA campaign number | 26V603000 |
Vehicles in this recall
Not every vehicle of these model years is included. Enter your VIN at nhtsa.gov/recalls ↗ or ask a dealer.
Frequently asked questions
What is recall 26V-603?
Forest River, Inc (Forest River) is recalling certain 2026-2027 Dynamax Grand Sport GT recreational vehicles. The engine pre-heat pump may have been improperly installed, causing the coolant hose to fail.
How is recall 26V-603 fixed?
Dealers will re-pin the wiring harness, re-route the coolant hoses, and replace parts as necessary, free of charge. Owner notification letters were mailed October 20, 2026. Owners may contact Forest River customer service at 1-574-522-1583. Forest River's number for this recall is 40-2097.
Is the recall repair free?
Yes. Safety recall repairs are free at authorized dealers. Check whether your vehicle is included with its VIN at nhtsa.gov/recalls.