Remote start ???
Tim
I could be wrong, but that's how I understood it.
When the remote start feature is used, the climate control system automatically sets certain parameters in an attempt to achieve a comfortable cabin temperature. These parameters are set based on outside air temperature. During remote start, the outside air temperature is continually evaluated and HVAC system behavior can change if the outside air changes between cold, moderate and warm temperatures.
For cold ambient air temperatures (below 0°C (32°F)):
-the airflow mode is set to FLOOR/DEFROST.
-the temperature is set to full HOT.
-the blower speed is set to HIGH.
-the air inlet mode is set to fresh air.
-the auxiliary electric heater is enabled if needed (diesel engines only) (if equipped).
For moderate ambient air temperatures (between 0°C (32°F) and 27°C (80°F)):
-the airflow mode is set to the last user setting.
-the temperature is set to the last user setting.
-the blower speed is set to the last user setting.
-the air inlet mode is set to the last user setting.
-the auxiliary electric heater is enabled if needed (diesel engines only) (if equipped).
For warm ambient air temperatures (above 27°C (80°F)):
-the airflow mode is set to MAX A/C.
-the temperature is set to full COOL.
-the blower speed is set to HIGH.
-the air inlet mode is set to RECIRC.
-the auxiliary electric heater is not enabled (diesel engines only) (if equipped).
Climate Controlled Seats (If Equipped) - When the vehicle is started using the remote start feature, the driver/passenger climate controlled seat activates in full heat mode when the outside temperature is less than 0° C (32° F) and full cool mode when outside temperature is greater than 27° C (80° F).
Heated Mirrors (If Equipped) - When the vehicle is started using the remote start feature and the outside temperature is less than 0° C (32° F), the heated mirrors will be activated.
Rear Window Defrost (If Equipped) - When the vehicle is started using the remote start feature and the outside temperature is less than 0° C (32° F), the rear window defrost will be activated.
You know it just occured to me that if our trucks have a temperature sensor then why don't I have a gauge or electronic display of outside temperature in my cab? Just curious as several of my previous vehicles had had that feature.
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Remote start and DATC (Dual Automatic Climate Control)...
For cold ambient air temperatures as determined by the HVAC module AUTO mode to request heat:
-the airflow mode is set to FLOOR/DEFROST.
-the temperature is set to 22°C (72°F).
-the blower speed is set to AUTO.
-the air inlet mode is set to AUTO.
-the auxiliary electric heater is enabled if needed (diesel engines only) (if equipped).
For moderate ambient air temperatures as determined by the HVAC module AUTO mode to request heat or cooling:
-the airflow mode is set to the AUTO.
-the temperature is set to the last user setting (Temperature setting is limited to 18°C (65°F) minimum and 29°C (85°F) maximum. If the temperature is set above or below that range, it will use the minimum or maximum value.).
-the blower speed is set to the AUTO.
-the air inlet mode is set to AUTO.
-the auxiliary electric heater is enabled if needed (diesel engines only) (if equipped).
For warm ambient air temperatures as determined by the HVAC module AUTO mode to request cooling:
-the airflow mode is set to AUTO.
-the temperature is set to 22°C (72°F).
-the blower speed is set to AUTO.
-the air inlet mode is set to AUTO.
-the auxiliary electric heater is not enabled (diesel engines only) (if equipped).
It's a 2012 F-350 Diesel King Ranch I’ve had it three weeks.
Mine does that sometimes at random as well. Sometimes it completely shuts the fan off, other times is slows the fan down, but most of the time it doesn't change anything at all. No idea why it acts goofy sometimes.











