NHTSA complaint #11757976

Owner complaint summary

Component Affected: Electrical / Interior Cabin Comfort / HVAC SystemsDescription of Defect:I am reporting an active thermal defect in the dashboard footprint of my 2021 Genesis GV80 AWD 3.5T. Following a 35-to-40-minute dynamic road test under engine load, severe heat migrates directly from the engine compartment into the passenger cabin. The instrument cluster panel and surrounding dashboard structures reach an extreme, verified temperature of 110°F, while the adjacent passenger vents measure standard cooling at 80°F.This severe cabin heat soak began immediately following an authorized dealership replacement of the air conditioning evaporator coil, requiring complete dashboard disassembly. The thermal failure strongly indicates a compromised bulkhead/firewall seal, displaced steering column boot, or an uninstalled engine-bay thermal insulation blanket, which allows high-temperature engine bay heat and air pressure to blow directly into the vehicle's internal electronic housing components.Safety Hazard:An instrument cluster panel reaching 110°F poses an immediate safety hazard. It creates a severe cabin driver distraction, generates a risk of physical burns upon contact with vehicle instrumentation, and risks causing a thermal breakdown or electrical fire within the vehicle's primary digital dashboard wiring harness.Dealer/Manufacturer Actions:Two separate authorized Genesis retailers have refused to conduct a 40-minute dynamic road test to recreate the thermal failure. Technicians performed only a brief, 3-minute static idle test inside a shop bay and declared the vehicle "operating as designed." Genesis Motor America corporate customer care has used these insufficient 3-minute static shop tests to prematurely close my consumer safety case. The manufacturer refuses to diagnose this vehicle under dynamic driving loads or inspect the firewall seals under the 12-month dealer repair workmanship warranty. No crash or injury has occurred yet, but the thermal risk remain