2026–2027 Dynamax Grand Sport GT: Fuel System, Diesel recall
NHTSA campaign 26V603000 · 16 units potentially affected · filed Sep 21, 2026
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.
Why it matters
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.
Recall details
- NHTSA campaign
- 26V603000
- Manufacturer no.
- 40-2097
- Manufacturer
- Forest River, Inc.
- Component
- FUEL SYSTEM, DIESEL: PRE-HEATER
- Units affected
- 16
- Report received
- Sep 21, 2026
- Owner letters
- —
- Type
- Vehicle
Check whether your vehicle is included with the official NHTSA VIN lookup or your dealer. Repairs for safety recalls are free.
Vehicles covered
- Dynamax Grand Sport GT 2026, 2027