How do you use Dual Zone Automatic Climate Control with the in-dash navigation system?

How do you use Dual Zone Automatic Climate Control with the in-dash navigation system?
Experienced mechanics share their insights in answering this question :
If you have a built-in navigation system and your car also has Dual Zone Automatic Climate Control, you’ll find that operating the system is a little bit different from either the manual climate control or the non-navigation based Dual Zone Automatic Climate Control platforms. Here’s what you need to know:

Climate: Press the Climate button on the navigation touchscreen to control the system.
Rear Defrost: This turns the rear defroster on and off.
A/C: This turns the air conditioner on.
Passenger Temp: This lets you set the temperature for the passenger side of the car (automatic climate control).
Heated Seats: You have two buttons for seat heaters, one for the driver and one for the front passenger. Press the appropriate button to turn on the seat heater in that seat. Press it again to turn it off.
Recirculation: This changes the system from fresh outside air to recirculated air.
Fan Speed: This changes the speed of the fan/blower.
Auto: Push this button to turn the Automatic Climate Control system from manual to automatic.
Driver Temp: This lets you set the temperature for the driver side of the car (automatic climate control).
Power: Push this button to turn the climate control system on or off. If the Power button is off, you cannot select Climate Control from the touchscreen.
Defrost: Turns on the front defroster, which is tied to the air conditioner.

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To use the dual zone automatic climate control, push the AUTO button on the left-side knob. The current temperature settings will appear in the climate control display. Turn the driver`s side knob to adjust the temperature up or down.
The Dual Automatic Climate Control system is able to control and adjust different parts of your vehicle automatically according to your desired settings. It can control the speed of the fan, the delivery of air, the air conditioning system as a whole and the recirculation settings.
According to Cars.com, dual-zone climate control is a system that allows the front passengers of a vehicle to have their own “zones” to control the temperature inside the cabin. A single temperature controls the entire cabin for older cars and less well-equipped modern models.
A dual-zone system uses motorized dampers, which are controlled by separate thermostats. You can therefore set the temperature differently for one section of the house than another. No energy is used to heat or cool an upstairs bedroom or a basement when it`s not in use.
Yes, You Can Switch Between Your AC and Heater

Despite what some say, it`s fine to switch between your air conditioning and heating systems.

Climate control consistently monitors the temperature in the car and then heats or cools the cabin space accordingly, whereas air-con is more of a manual system where you have to tell it what to do. You set the temperature and fan speed, and then the air con will stay on those settings until you adjust them yourself.
Prevailing winds and pressure belts are major climate controls. A belt of low pressure known as the intertropical convergence zone (ITCZ) lies along the Equator. On either side of the equatorial low, between 25° and 30° latitude in each hemisphere, is a belt of high-pressure centers over the oceans.
 The system controls the temperature, amount and distribution of the air flow automatically and adjusts them according to the driving and weather conditions. Press the AUTO button to switch auto mode on.
Your car`s air conditioning is most efficient when set to the lowest temperature and adjusting the fan for comfort. Most air conditioning systems cool the air to 3-4 C. A higher temperature forces the system to re-heat the air, burning more fuel.
If you do not have two separate temperature readings and separate sets of controls on each side of the dash board, then you do not have a dual climate control.
Tips for operating the air conditioning system

The ideal temperature is between 22 and 25 degrees.

Systems that are in dual temperature service operate at temperatures varying between two limits, usually a high temperature and a low temperature. In this case, the limitation of the surface condensation applies for the low temperature and the limitation of the surface temperature for the high temperature.
The general rule of thumb for a two-story home is that you should set each thermostat two degrees Fahrenheit apart from the other. During the summer, when your AC is running, set the upper floor at the temperature you actually want in your home. Then set each floor underneath that to two degrees warmer.
During the summer, set your upstairs thermostat to your desired temperature, and the downstairs unit two degrees warmer. During winter, set the downstairs temperature to the ideal level, and upstairs two degrees colder. During the winter, this isn`t as much of a problem, because you want a warmer home.
Single-zone ductless air conditioners are meant to cool or heat small living spaces. Multi-zone systems, on the other hand, allow you to connect multiple indoor air handlers to the outdoor unit. As a result, they let you create and control the temperature in multiple zones within your home.
It may seem counter-intuitive to run your mobile A/C when the weather`s cool, or even freezing, however running the A/C in the winter not only does not do any harm to your heating/cooling system, it may in fact, offer benefits. Simply put, running the A/C and heater will dehumidify and remove moisture from the air.
Dual-zone climate control is a system that allows the vehicle`s front-seat passengers to set their own preferred temperature for their “zone,” or their area of the front cabin. It`s a smarter, more personalized version of basic automatic climate control systems that let you set a single temperature for the whole cabin.
A manual air conditioning system stays on at the cooling and blower setting you select and keeps on blowing at that pace until you switch it lower. Climatronic, on the other hand, automatically keeps your vehicle at a specific temperature you select.
With a zoned system, one unit provides heating and cooling to multiple areas of your home. In a dual-unit system, you have two totally separate units that each operate a single zone with separate, unconnected thermostats.
Your HVAC System has an evaporator coil that condenses water vapor from the air, in a process similar to when condensation appears on the outside of a glass containing a cold beverage. This occurs when hot, moist air in your home comes in contact with the cold evaporator coil.
Usually cars that blow cold on one side of the dash and warm on the other side, are typically equipped with a dual zone climate control system. Dual zone systems allow the driver and front passenger to adjust respective temperatures to their comfort levels.
Type II – There is no dry season with a very pronounced maximum rain period from November to January. These regions are along or very near the eastern coast which are sheltered neither from the NE monsoon and the trade winds nor from cyclonic storms.
Research has found that by using your air conditioning to control the climate of your vehicle, you can actually increase your fuel consumption by around 8-10%.
The most common and fundamental distinction between climate control and temperature control is humidity. A temperature-controlled warehouse manages temperature while a climate-controlled warehouse manages temperature and humidity.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

How do you use Dual Zone Automatic Climate Control with the in-dash navigation system?
ANSWER : If you have a built-in navigation system and your car also has Dual Zone Automatic Climate Control, you’ll find that operating the system is a little bit different from either the manual climate control or the non-navigation based Dual Zone Automatic Climate Control platforms. Here’s what you need to know:

Climate: Press the Climate button on the navigation touchscreen to control the system.
Rear Defrost: This turns the rear defroster on and off.
A/C: This turns the air conditioner on.
Passenger Temp: This lets you set the temperature for the passenger side of the car (automatic climate control).
Heated Seats: You have two buttons for seat heaters, one for the driver and one for the front passenger. Press the appropriate button to turn on the seat heater in that seat. Press it again to turn it off.
Recirculation: This changes the system from fresh outside air to recirculated air.
Fan Speed: This changes the speed of the fan/blower.
Auto: Push this button to turn the Automatic Climate Control system from manual to automatic.
Driver Temp: This lets you set the temperature for the driver side of the car (automatic climate control).
Power: Push this button to turn the climate control system on or off. If the Power button is off, you cannot select Climate Control from the touchscreen.
Defrost: Turns on the front defroster, which is tied to the air conditioner.

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How do you get maximum cooling with the Dual Zone Automatic Climate Control?
ANSWER : During very hot weather, you may find that normal air conditioning operation doesn’t quite cut it. There are two ways that you can obtain maximum cooling with your car. Here’s what you should know:

Auto: You can use the Automatic Climate Control system to provide maximum cooling by doing the following:

Set the system to Auto.
Make sure that the system turns to Air Conditioning, and that it defaults to recirculated air.
Turn the temperature gauge to the lowest setting (60 degrees F).

Max A/C: You can also use the Max A/C function to provide better cooling during seriously hot weather by doing the following:

Push the Max A/C button. Note that this turns off dual zone operation.
Turn the temperature to the lowest (60 degrees F).
Make sure that Recirculate is active, and that the Air Conditioner light is on.
The fan speed should automatically adjust to the highest, but you can manually turn it up (or down) as needed.

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What do the controls do on the dual automatic temperature control system?
ANSWER : If your car is equipped with a dual automatic temperature control system, it allows you to set a different temperature for the driver side and passenger side. Once you’ve set the temperature, the system will automatically maintain it until you change a setting. Here’s how the controls work:

Auto Driver Side: This activates the automatic temperature control system for the driver. If the passenger side is not on auto and programmed separately, it will have the same temp as the driver side. The system automatically controls most aspects to keep the car at the preset temp, including:

Fan speed
Temperature
Vent selection
Fresh or recirculated air
A/C on and off
Heating

Rear Defrost: Push this button to turn on the rear glass defroster.
Front Defrost: Push this to turn on the front defroster.
Defrost and Lower Vents: This turns on both the front defrost and the lower vents at your feet.
Power: This turns the system on and off. Turning it right and left adjusts the fan speed manually, as well.

Upper Vent: Push this to choose upper vent operation only.

Split Vent: Push this to direct air from both the upper and lower vents.
Lower Vents: Push this to have air directed only out of the lower vents.
Auto Passenger Side: Sets the temperature desired for the passenger side. If this is not set, the passenger side will default to the same temp as the driver side.
Heated Seats: You have two heated seat buttons (one for each front seat). Push them to turn the heated seats on or off.
Recirculated Air: Push this to change from fresh air to recirculated air and back again.
Max A/C: Turns on maximum air conditioning.
A/C: Turns on the normal air conditioning.
Outside Temp: This readout tells you what the temperature is outside the vehicle.

Read Full Q/A … : How do you use Dual Zone Automatic Climate Control with the in-dash navigation system?

Why is my air system blowing out hot air in spurts and why is the temperature gauge nearing hot while in use?
ANSWER : This can be caused for a variety of reasons such as a malfunctioning thermostat, a radiator not flowing properly, a faulty coolant temp sensor or AC refrigerant not properly being supplied to the AC compressor. Your car’s AC system puts a heavy strain on your car’s engine when it runs as it requires a lot of power to run. When the AC compressor comes on it puts additional strain on the motor that may be already struggling to stay cool as a result of any of the issues named above. I would recommend having an expert from YourMechanic come to your home to diagnose and repair.

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How do I turn on the defogging logic feature with the automatic climate control system?
ANSWER : The defogging logic feature automatically controls the air intake to keep the window from fogging up. To set the defogging logic system, follow these steps:
1. Turn the ignition to the ON position.
2. Press the Defrost button.
3. Press and hold the A/C button.
4. While holding the A/C button, press the Air Intake Control button five consecutive times. The indicator on the button will then flash three times to confirm the setting.
To turn off the defogging logic, repeat these steps.

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How do I use the audio system with a navigation system?
ANSWER : If you have an Accord with an in-dash navigation system, there’s good news. Most of your audio system functionality still comes from the standard buttons on the interface. However, there are some things you can only do by using the “interface dial”. This is the large knob on the lower center portion of your system. It combines three different elements:

The enter button
The rotating knob
The selector direction pad (up, down, left and right)

The selector pad is what lets you access the menu system, and scroll through lists, menus and other items.

To access a menu item, use the arrows or knob to highlight it, and then press enter.

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Does non-climate control car AC cut-in & cut-off automatically?
ANSWER : A/C systems that used fixed displacement compressors will cycle on and off (the compressor that is) depending on cooling demand. If you have a variable displacement compressor in your vehicle, though, the compressor may hardly ever cycle simply because the compressor is capable of load following. In fixed displacement systems, without automatic climate control, the rate of cycling is usually determined by pressures within the system. An example of this type of system is what’s known as a CCOT (cycling clutch orifice tube) system. The compressor clutch will cycle on and off depending on cooling demand, usually at around 21-23 psi on the suction side, but of course there is variance from car model to car model. On newer car, the vehicle’s PCM is involved in the control strategy, too, as the PCM can command the compressor off during periods of high engine demand, such as rapid acceleration. Insofar as climate control heating and HVAC systems, those are electronically controlled and, in the main, merely "automate" all the mechanical controls that formerly were used to control the position of blend doors and the heater control valve. Control strategies are electronics-based. If you need a diagnostic of a vehicle HVAC problem, performed by a certified Mechanic, dispatched by YourMechanic right to your location, please request HVAC inspection/testing and the responding certified mechanic will address your issue(s). If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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How does the automatic climate control system detect the temperature?
ANSWER : In order for the automatic climate control system to work, it needs to know the temperature inside, as well as the temperature/amount of sunlight entering the cabin. It gets this information from two sensors.

Sunlight Sensor: The sunlight sensor can be found on the dash of your car, close to the windshield.
Temperature Sensor: The temperature sensor is located on the dash, to the right of the steering column.

Tip

Both the sunlight sensor and the temperature sensor need to be unobstructed in order to operate correctly.

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Eric smoalih

I am a certified master technician with the National Institute for Automotive Service Excellence (ASE), and I have been working as an auto mechanic for over 15 years. I am passionate about my work, and I take great pride in helping people keep their cars running smoothly.