Tesla Y 2019 Owner's Manual page 136

Climate Controls
• No A/C: Only the fan operates when the cabin
temperature exceeds 40° C. This option consumes
less energy but the cabin temperature may exceed
40° C.
• On: The air conditioning operates when the cabin
temperature exceeds 40° C.
NOTE: Cabin Overheat Protection operates until 12 hours
has elapsed since you exited Model Y, or until the
Battery energy drops below 20%, whichever comes first.
WARNING: Never leave children or pets in the
vehicle unattended. Due to automatic shut-off or
extreme outside conditions, the inside of the
vehicle can become dangerously hot, even when
Cabin Overheat Protection is enabled.
Climate Control Operating Tips
• You can direct the face-level vents toward the
windows to help defrost or defog them.
• When you use the mobile app to turn on the climate
control system, it automatically turns off after four
hours or if the charge level drops to 20%. To cool or
heat the cabin for a longer period, you must turn it on
again.
• Your charge port latch may freeze in extremely cold
weather or icy conditions. In cases where you cannot
remove or insert the charge cable, or your vehicle is
not Supercharging due to the latch being frozen in
place, enable Defrost Car in the mobile app. This
helps thaw ice on the charge port latch so the charge
cable can be removed or inserted. See
Best Practices on page 83
• If the climate control system is louder than you prefer,
manually reduce the fan speed.
• In addition to cooling the interior, the air conditioning
compressor also cools the Battery. Therefore, in hot
weather, the air conditioning compressor can turn on
even if you turned it off. This is normal because the
system's priority is to cool the Battery to ensure it
stays within an optimum temperature range to
support longevity and optimum performance.
• Even when not in use, you may hear Model Y emit a
whining noise or the sound of water circulating.
These sounds are normal and occur when the internal
cooling systems turn on to support various vehicle
functions, such as maintaining the low voltage
battery and balancing the temperature of the high
voltage Battery.
• To ensure the climate control system operates
efficiently, close all windows and ensure that the
exterior grille in front of the windshield is free of ice,
snow, leaves, and other debris.
• In very humid conditions, it is normal for the
windshield to fog slightly when you first turn on the
air conditioning.
134
Cold Weather
for more information.
• It is normal for a small pool of water to form under
Model Y when parked. Extra water produced by the
dehumidifying process is drained underneath.
• Model Y is designed to automatically maximize
efficiency; therefore, your air conditioning
compressor and external fan may run and make noise
even when the outside temperature is cold and your
vehicle is heating or supercharging.
• To reduce the temperature in the cabin in hot
weather conditions, the fan may turn on to vent the
cabin when the vehicle is parked. This occurs only if
the battery's charge level is above 20%.
MODEL Y Owner's Manual