NHTSA vehicle safety data
2026 Dynamax Grand Sport GT Recalls, Ratings & Complaints
The 2026 Dynamax Grand Sport GT has 1 NHTSA recall campaign and 0 owner complaints on file as of October 16, 2026. Recall repairs are usually free at an authorized Dynamax dealer.
NHTSA recall and complaint data for the 2026 Dynamax Grand Sport GT. Recall data is refreshed daily from NHTSA.
FUEL SYSTEM, DIESEL: PRE-HEATER
NHTSA #26V603000Reported September 21, 2026 · Forest River, Inc.
Potentially affected: 16 vehicles
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.
Other Dynamax Grand Sport GT model years
Check your 2026 Dynamax Grand Sport GT VIN
Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Dynamax Grand Sport GT at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.
Check a Dynamax VIN