NHTSA recall 26V603000 · Sep 21, 2026
Forest River, Inc.: Improperly Installed Engine Pre-Heat Pump
Product
2026-2027 Dynamax Grand Sport GT recreational vehicles
Hazard
A coolant hose failure can cause the engine to overheat, increasing the risk of a crash.
What to do
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.
Got a car, truck or motorcycle? The surest check is your 17-character VIN, which is on your registration, insurance card, or the driver-side dashboard. NHTSA's free lookup shows any open recall that hasn't been repaired on that exact vehicle.
Check my VIN on NHTSA.govRecall details
- Summary
- 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.
- Component
- FUEL SYSTEM, DIESEL
- Recall type
- Vehicle
- Potentially affected
- 16
- Manufacturer campaign number
- 40-2097
Source: National Highway Traffic Safety Administration (NHTSA) notice.
Copied from the agency record without changes. Data as of Oct 14, 2026, 12:58 AM EDT. The agency notice is the final word.
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