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2019 Chevrolet Silverado 2500HD Owners Manual - Climate Control Systems



Climate Control Systems

Climate Control Systems (with Heater Only)

With this system, the heating and ventilation can be controlled.

    Fan Control
    Air Recirculation
    Air Delivery Mode Controls
    Defrost
    TEMP (Temperature Control)

TEMP : Turn clockwise or counterclockwise to increase or decrease the temperature inside the vehicle.

9 : Turn clockwise or counterclockwise to increase or decrease the fan speed. Turn the

knob all the way counterclockwise to turn the fan off.

Air Delivery Mode Controls : Press Y, \, [ , or - to change the direction of the airflow. An indicator light comes on in the selected mode button.

Y : Air is directed to the instrument panel outlets.

\ : Air is divided between the instrument panel and floor outlets. [ : Air is directed to the floor

outlets, with some air directed to the

windshield, side window, and second row floor outlets.

- : This mode clears the windows of fog or moisture. Air is directed to

the windshield, floor outlets, and side window vents.

0 : Press to clear the windshield of fog or frost more quickly. Air is

directed to the windshield and the side window vents. The system automatically forces outside air into the vehicle.

Do not drive the vehicle until all the windows are clear.

See Air Vents 0 223.

@ : Press to turn on recirculation. An indicator light comes on. Air is recirculated to quickly cool the

inside of the vehicle. It can also be used to help reduce outside air and odors that enter the vehicle.

Climate Control Systems (with Air Conditioning)

With this system the heating, cooling, and ventilation can be controlled.

Air Delivery Mode Controls : Press Y, \, [ , or - to change the direction of the airflow. An indicator light comes on in the selected mode button.

Y : Air is directed to the instrument panel outlets.

\ : Air is divided between the instrument panel and floor outlets.

[ : Air is directed to the floor outlets, with some air directed to the windshield and side window outlets.

- : This mode clears the windows of fog or moisture. Air is directed to the windshield, floor outlets, and

    Fan Control
    A/C (Air Conditioning)
    Air Delivery Mode Controls
    Defrost
    TEMP (Temperature Control)
    K (Rear Window Defogger, If Equipped)

f (Heated Outside Mirror, If Equipped)

8 (Outside Air, If Equipped)

    @ Air Recirculation TEMP : Turn clockwise or counterclockwise to increase or

decrease the temperature inside the vehicle.

9 : Turn clockwise or counterclockwise to increase or

decrease the fan speed. Turn the knob all the way counterclockwise to turn the fan off.

side window vents.

0 : Press to clear the windshield of fog or frost more quickly. Air is directed to the windshield and the

side window vents. The system automatically forces outside air into the vehicle and the air conditioning compressor will run, unless the outside temperature is close to freezing.

Do not drive the vehicle until all the windows are clear.

See Air Vents 0 223.

@ : Press to turn on recirculation. An indicator light comes on. Air is recirculated to quickly cool the

inside of the vehicle. It can also be used to help reduce outside air and odors that enter the vehicle.

    : If equipped, press to turn the outside air mode on. An indicator light on the button comes on to show that outside air is on. When selected, air from outside the vehicle circulates throughout the vehicle. The recirculation mode cannot be used with the outside

air mode.

A/C : Press to turn the air conditioning system on or off. An indicator light comes on to show that the air conditioning is enabled. If the fan is turned off, the air conditioner will not run. The A/C light will stay on even if the outside temperatures are below freezing.

K : If equipped, press to turn the rear window defogger on or off. An indicator light on the button comes on to show that the rear window defogger is on.

The rear window defogger only works when the ignition is on. The defogger turns off if the ignition is turned to ACC/ACCESSORY or off.

If equipped with heated outside mirrors, they turn on when the rear window defogger button is on. They help to clear fog or frost from the surface of the mirrors.

With this system the heating, cooling, and ventilation in the vehicle can be controlled.

    Driver Temperature Control
    A/C (Air Conditioning)
    Air Delivery Mode Controls
    Fan Control
    Defrost
    Passenger Temperature Control
    SYNC (Synchronized Temperature)
    Rear Window Defogger
    Power Button
    Air Recirculation

    AUTO (Automatic Operation)

Automatic Operation

The system automatically controls the fan speed, air delivery, air conditioning, and recirculation in order to heat or cool the vehicle to the desired temperature.

When the indicator light is on, the system is in full automatic operation. If the air delivery mode or fan setting is manually adjusted, the auto indicator turns off and displays will show the selected settings.

To place the system in automatic mode:

    Press AUTO.
    Set the driver and passenger temperature.

To find your comfort setting, start with 22 °C (72 °F) and allow the system time to stabilize. Then adjust the temperature as needed for best comfort.

To improve fuel efficiency and to cool the vehicle faster, recirculation may be automatically selected in warm weather.

The recirculation light will not come on when automatically controlled. Press @ to manually select recirculation; press it again to select

outside air.

Do not cover the solar sensor on the top of the instrument panel near the windshield. This sensor regulates air temperature based on sun load. See “Sensors” later in this section.

O : Press to turn the climate control system on or off. When off is selected, air will not flow into the cabin. If on is selected, a climate control button is pressed, or a climate control knob is turned, the climate control system will turn on and operate at the current setting.

    : Turn clockwise or counterclockwise to increase or decrease the fan speed. Press the

knob to turn the fan off.

Press AUTO to return to automatic operation.

Driver and Passenger Temperature Control : The temperature can be adjusted separately for the driver and passenger.

Turn the knob clockwise or counterclockwise to increase or decrease the driver or passenger temperature setting.

SYNC : Press to link the passenger temperature setting to the driver setting. The SYNC indicator light will

turn on. When the passenger setting is adjusted, the SYNC indicator light is off.

The driver side or passenger side temperature display shows the temperature setting increasing or decreasing.

Air Delivery Mode Control : Press Y, \, [ , or - to change the direction of the airflow. An indicator

light comes on in the selected mode button.

Changing the mode cancels the automatic operation and the system goes into manual mode. Press AUTO to return to automatic operation.

Y : Air is directed to the instrument panel outlets.

\ : Air is divided between the instrument panel and floor outlets. Some air is directed toward the windshield and side window outlets.

[ : Air is directed to the floor outlets, with some to the windshield, side window outlets, and second row floor outlets.

- : This mode clears the windows of fog or moisture. Air is directed to

the windshield, floor outlets, and side window vents. The system automatically forces outside air into the vehicle and the air conditioning compressor will run, unless the outside temperature is close to freezing.

0 : Press to clear the windshield of fog or frost more quickly. Air is directed to the windshield and the

side window vents. The air conditioning compressor also comes on, unless the outside temperature is below freezing.

Do not drive the vehicle until all windows are clear.

See Air Vents 0 223.

A/C : Press to turn the air conditioning system on or off. An indicator light comes on to show that the air conditioning is enabled. If the fan is turned off, the air conditioner will not run. The A/C light will stay on even if the outside temperatures are below freezing.

@ : Press to turn on recirculation. An indicator light comes on. Air is

recirculated to quickly cool the inside of the vehicle. It can also be used to help reduce outside air and odors that enter the vehicle. The air conditioning compressor also comes on when this mode is activated.

The rear window defogger uses a warming grid to remove fog from the rear window.

K : Press to turn the rear window defogger on or off. An indicator light on the button comes on to show that the rear window defogger is on.

The rear window defogger only works when the ignition is on. The defogger turns off if the ignition is turned to ACC/ACCESSORY or off.

Heated Mirrors : If equipped with heated outside mirrors, press K to heat the mirrors. See Heated Mirrors 0 48.

The solar sensor, located in the defrost grille in the middle of the instrument panel, monitors the solar heat. Do not cover the solar sensor or the system will not work properly.

There is also an exterior temperature sensor behind the front grille. This sensor reads the outside air temperature and helps maintain the temperature inside the vehicle. Any cover on the front of the vehicle including a snow plow, could cause a false reading in the displayed temperature.

Some vehicles may have the exterior temperature sensor in the passenger side mirror instead of the front grille area.

The climate control system uses the information from these sensors to maintain comfort settings by adjusting the outlet temperature, fan speed, and the air delivery mode.

The system may also supply cooler air to the side of the vehicle facing the sun. The recirculation mode will also be used as needed to maintain cool outlet temperatures.


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