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 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
- 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
- Oct 20, 2026
- Type
- Vehicle
Check whether your vehicle is included with the official NHTSA VIN lookup or your dealer. Repairs for safety recalls are free.