Heater core leak with coolant fumes or steam
VISIBILITY
5 NHTSA complaints · 2000-01 → 2004-07
“WHILE DRIVING 65 MPH HEATER CORE BLEW OUT. AS A RESULT WHITE STEAM FILLED THE PASSENGER COMPARTMENT WHICH IMPAIRED THE VISIBILITY OF THE DRIVER”
“HEAT EXCHANGER (CORE) LEAKED WHILE DRIVING, STEAMING UP THE VEHICLE INTERIOR TO IMPAIR VISIBILITY”
“WHILE DRIVING GAS AND FUMES BEGAN EMITTING FROM VENTS CAUSING WINDOWS TO FOG ELIMINATING CONSUMER'S VISIBILITY”