NHTSA campaign 26V603000 · Manufacturer campaign 40-2097
Dynamax Recall 26V-603: Improperly Installed Engine Pre-Heat Pump
NHTSA recall 26V603000 (Manufacturer campaign 40-2097) was reported by Forest River, Inc. on September 21, 2026, with 16 vehicles potentially affected (per NHTSA). NHTSA's record lists the Dynamax Grand Sport GT for model years 2026–2027.
Updated daily from NHTSA's recall files
Is my vehicle included?
This page lists, by model year, the vehicles NHTSA's recall record names for campaign 26V603000 in the model years try.vin imports (1995 and later); NHTSA's own record can list more. A model year on the list doesn't mean every vehicle of that year is included, and some may already have been repaired.
To see whether a specific vehicle is included and still needs the repair, enter its VIN at nhtsa.gov/recalls.
Free VIN check: decode a VIN to see its year, make and model.
Key facts
- NHTSA campaign
- 26V603000 (also written 26V-603 or 26V603)
- Filed by
- Forest River, Inc.
- Manufacturer campaign number
- 40-2097
- Report received
- Potentially affected
- 16 vehicles (per NHTSA)
- Component
- Fuel System, Diesel — Pre-Heater
Completion not yet reported (dataset updated October 21, 2026)
NHTSA cautions against comparing completion rates across recalls or manufacturers. How try.vin reads them.
Vehicles listed for this recall
NHTSA's recall record lists these vehicles for recall 26V603000. try.vin imports model years 1995 and later, so NHTSA's own list can be longer. Model years with a try.vin recall page link to it. Build dates are NHTSA's range for a model year (per NHTSA); a vehicle built in that range is not necessarily included.
Dynamax
Dynamax Grand Sport GT
NHTSA's recall notice
As NHTSA's recall record states it for campaign 26V603000.
Defect description
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.
Safety consequence
A coolant hose failure can cause the engine to overheat, increasing the risk of a crash.
Manufacturer remedy
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.
Sources
Official NHTSA notice for recall 26V603000
Campaign details come from NHTSA's recall files, which try.vin imports once a day. The plain-language subject and the completion rate come from the U.S. Department of Transportation's Recalls Data dataset. How try.vin reads recall data.