ON CERTAIN SUBJECT VEHICLES, THE MALFUNCTION INDICATOR LIGHT (MIL) MAY ILLUMINATE WITH DTC P0126:00 (THERMOSTAT STUCK OPEN) STORED IN THE POWERTRAIN CONTROL MODULE (PCM) MEMORY. THE THERMOSTAT FUNCTIONS NORMALLY, BUT THE “THERMOSTAT STUCK OPEN” CONDITION IS MISTAKENLY DETECTED DUE TO INAPPROPRIATE PCM SOFTWARE.THIS CONCERN WILL OCCUR UNDER THE FOLLOWING CONDITIONS: •WHEN DRIVING ON HIGHWAYS/FREEWAYS IMMEDIATELY AFTER A COLD START•WHEN THE AMBIENT TEMPERATURE IS 14 TO 32 DEGREES F (-10 TO 0 DEGREES C) •WHEN OPERATING THE HVAC SYSTEM IN THE MAXIMUM AIRFLOW MODE
