Recall 26V603000: 2026–2027 Dynamax Grand Sport GT
Updated from NHTSA data · How we count
- Report date
- Sep 21, 2026
- Vehicles affected
- 16
- Models
- 1
- Initiated by
- Manufacturer
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 are expected to be mailed October 31, 2026. Owners may contact Forest River customer service at 1-574-522-1583. Forest River's number for this recall is 40-2097.
Affected vehicles
- 2026 Dynamax Grand Sport GT
- 2027 Dynamax Grand Sport GT
Details
- NHTSA campaign
- 26V603000
- Manufacturer campaign
- 40-2097
- Manufacturer
- Forest River, Inc.
- Components
- Fuel system, diesel: pre-heater (Fuel, Hybrid & EV Propulsion)
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