Vehicle recall 26V603000 · September 21, 2026
2026-2027 Dynamax Grand Sport GT
The engine pre-heat pump may have been improperly installed, causing the coolant hose to fail.
Source: NHTSA data as of September 28, 2026. Last refreshed Sep 28, 2026, 7:48 PM UTC.
- 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.
- Consequence
- A coolant hose failure can cause the engine to overheat, increasing the risk of a crash.
- 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.
Recall details
- NHTSA campaign
- 26V603000
- Reported to NHTSA
- September 21, 2026
- Filed by
- Forest River, Inc.
- Manufacturer campaign
- 40-2097
- Vehicles potentially affected
- 16
- Initiated by
- the manufacturer
- Components
- Fuel system, diesel › Pre-heater
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
- Dynamax Grand Sport GT (2026-2027): 2027, 2026
Has your Dynamax been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Dynamax dealer can also check your VIN. Recall repairs are free.