When do the Chevy Silverado low speed fans shut off?
When do the Chevy Silverado low speed fans shut off? • After the vehicle is shut OFF if the engine coolant temperature at key-off is greater than 101°C (214°F) the low speed fans will run for a minimum of 60 seconds After 60 seconds, if the coolant temperature drops below 101°C (214°F) the fans will shut OFF. The fans will automatically shut OFF after 3 min. regardless of coolant temperature. Why does my GM car heater not shut off? In some cases in cold weather the blower motor may not run, or if it does, it may not shut off...