2026–2027 Dynamax Grand Sport GT recall: fuel system
⚠️ What's wrong
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.
Is the fix free? Yes. Safety recall repairs are free at any authorized dealer under federal law, including parts and labor. (Vehicles more than 15 years old when the recall was announced can be excluded, but most manufacturers still fix them.)
- NHTSA campaign
- 26V603000
- Manufacturer recall #
- 40-2097
- Manufacturer
- Forest River, Inc.
- Vehicles affected
- 16
- Component
- FUEL SYSTEM, DIESEL: PRE-HEATER
- NHTSA hotline
- 1-888-327-4236
- Owner letters mailed
- Oct 20, 2026
- Built
- Dec 24, 2025 – Apr 30, 2026
- Recall started by
- MFR