Hyundai Equus 2014 Owner's Manual

Features of your vehicle
142 4
Air quality system
The air inflow from outside the vehi-
cle can be automatically controlled.
Press the button to activate the air
quality control system.
When using AQS mode, AQS(Air
Quality System) automatically sens-
es outdoor air pollutants and mini-
mizes them from entering the vehi-
cle, however, unpleasant or foul
odors that might be present may still
be noticeable within the vehicle.Exhaust gas cutoff mode :
Air enters the vehicle from the outside.
If exhaust gas enters the vehicle from
the outside, the exhaust gas cutoff
mode is automatically converted from
the outside air position to the recircu-
lated air position to prevent exhaust
gas from entering the vehicle.
✽NOTICE
It should be noted that prolonged
operation of the heating system in
recirculation mode will give rise to
misting of the windshield and side
windows and the air within the pas-
senger compartment will become
stale. In addition, prolonged use of
the air conditioning with the recir-
culation mode selected may result in
the air within the passenger com-
partment becoming excessively dry.
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CAUTION
If the windows fog up with the
Recirculation or A.Q.S mode
selected, set the air intake con-
trol to the fresh air position or
A.Q.S control to OFF.

4143
Features of your vehicle
Fan speed control
The fan speed can be set to the
desired speed by pushing the fan
speed control button.
The higher the fan speed is, the
more air is delivered.
Pressing the OFF button turns off the
fan.
Air conditioning
Push the A/C button to turn the air
conditioning system on (indicator
light will illuminate).
Push the button again to turn the air
conditioning system off.
OFF mode
Push the OFF button of the front to
turn off the air climate control system.
However, you can still operate the
mode and air intake buttons as long as
the ignition switch is in the ON position.
When the OFF button of the rear is
pressed, the rear blower will turn off.
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■Front
■Rear
• Type A • Type B
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■Front
■Rear

Features of your vehicle
144 4
Climate information screen selec-
tion button
To change the screen into the cli-
mate information screen, push the
button.
System operation
Ventilation
1. Set the mode to the position.
2. Set the air intake control to the
outside (fresh) air position.
3. Set the temperature control to the
desired position.
4. Set the fan speed control to the
desired speed.
Heating
1. Set the mode to the position.
2. Set the air intake control to the
outside (fresh) air position.
3. Set the temperature control to the
desired position.
4. Set the fan speed control to the
desired speed.
5. If dehumidified heating is desired,
turn the air conditioning system (if
equipped) on.
• If the windshield fogs up, set the
mode to the or press the front
defrost button ( ).Operation Tips
• To keep dust or unpleasant fumes
from entering the car through the
ventilation system, temporarily set
the air intake control to the recircu-
lated air position. Be sure to return
the control to the fresh air position
when the irritation has passed to
keep fresh air in the vehicle. This
will help keep the driver alert and
comfortable.
• Air for the heating/cooling system
is drawn in through the grilles just
ahead of the windshield. Care
should be taken that these are not
blocked by leaves, snow, ice or
other obstructions.
• To prevent interior fog on the wind-
shield, set the air intake control to
the fresh air position and fan speed
to the desired position, turn on the
air conditioning system, and adjust
the temperature control to desired
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4145
Features of your vehicle
Air conditioning
HYUNDAI Air Conditioning Systems
are filled with environmentally friend-
ly refrigerant.
1. Start the engine. Press the air con-
ditioning button.
2. Set the mode to the position.
3. Set the air intake control to the
outside air or recirculated air posi-
tion.
4. Adjust the fan speed control and
temperature control to maintain
maximum comfort.
✽NOTICE
• When using the air conditioning
system, monitor the temperature
gauge closely while driving up
hills or in heavy traffic when out-
side temperatures are high. Air
conditioning system operation
may cause engine overheating.
Continue to use the blower fan but
turn the air conditioning system
off if the temperature gauge indi-
cates engine overheating.
• When opening the windows in
humid weather air conditioning
may create water droplets inside
the vehicle. Since excessive water
droplets may cause damage to
electrical equipment, air condi-
tioning should only be run with
the windows closed.
Air conditioning system operation tips
• If the vehicle has been parked in
direct sunlight during hot weather,
open the windows for a short time
to let the hot air inside the vehicle
escape.
• To help reduce moisture inside of
the windows on rainy or humid
days, decrease the humidity inside
the vehicle by operating the air
conditioning system.
• During air conditioning system
operation, you may occasionally
notice a slight change in engine
speed as the air conditioning com-
pressor cycles. This is a normal
system operation characteristic.
• Use the air conditioning system
every month only for a few minutes
to ensure maximum system per-
formance.

Features of your vehicle
146 4
• When using the air conditioning
system, you may notice clear water
dripping (or even puddling) on the
ground under the passenger side
of the vehicle. This is a normal sys-
tem operation characteristic.
• Operating the air conditioning sys-
tem in the recirculated air position
provides maximum cooling, how-
ever, continual operation in this
mode may cause the air inside the
vehicle to become stale.
• During cooling operation, you may
occasionally notice a misty air flow
because of rapid cooling and
humid air intake. This is a normal
system operation characteristics.Climate control air filter
The climate control air filter installed
behind the glove box filters the dust
or other pollutants that come into the
vehicle from the outside through the
heating and air conditioning system.
If dust or other pollutants accumulate
in the filter over a period of time, the
air flow from the air vents may
decrease, resulting in moisture accu-
mulation on the inside of the wind-
shield even when the outside (fresh)
air position is selected. If this hap-
pens, we recommend that the cli-
mate control air filter be replaced by
an authorized HYUNDAI dealer.
✽NOTICE
• Replace the filter according to the
Maintenance Schedule.
If the car is being driven in severe
conditions such as dusty, rough
roads, more frequent climate con-
trol air filter inspections and
changes are required.
• When the air flow rate suddenly
decreases, we recommend that the
system be checked by an author-
ized HYUNDAI dealer.
1LDA5047
Outside air
Recirculated
air
Climate control
air filterBlower
Evaporator
coreHeater core

4147
Features of your vehicle
Checking the amount of air
conditioner refrigerant and
compressor lubricant
When the amount of refrigerant is
low, the performance of the air con-
ditioning is reduced. Overfilling also
has a bad influence on the air condi-
tioning system.
Therefore, if abnormal operation is
found, we recommend that the sys-
tem be inspected by an authorized
HYUNDAI dealer.
WARNING - Vehicles
equipped with R-134a
Because the refriger-
ant is at very high
pressure, the air con-
ditioning system
should only be serv-
iced by trained and certified
technicians. It is important that
the correct type and amount of
oil and refrigerant is used.
Otherwise, it may cause damage
to the vehicle and personal injury.

Features of your vehicle
148 4
• For maximum defrosting, set the
temperature control to the extreme
right/hot position and the fan speed
control to the highest speed.
• If warm air to the floor is desired
while defrosting or defogging, set
the mode to the floor-defrost posi-
tion.
• Before driving, clear all snow and
ice from the windshield, rear win-
dow, outside rear view mirrors, and
all side windows.
• Clear all snow and ice from the
hood and air inlet in the cowl grill to
improve heater and defroster effi-
ciency and to reduce the probabili-
ty of fogging up the inside of the
windshield.To defog inside windshield
1. Set the fan speed to the desired
position.
2. Select desired temperature.
3. Press the defrost button ( ).
4. The air conditioning will be turned
on according to the detected ambi-
ent temperature and outside
(fresh) air position will be selected
automatically.
WINDSHIELD DEFROSTING AND DEFOGGING
WARNING - Windshield
heating
Do not use the or posi-
tion during cooling operation in
extremely humid weather. The
difference between the temper-
ature of the outside air and that
of the windshield could cause
the outer surface of the wind-
shield to fog up, causing loss of
visibility. In this case, set the
mode selection knob or button
to the position and fan
speed control knob or button to
the lower speed.
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4149
Features of your vehicle
If the air conditioning and outside
(fresh) air position are not selected
automatically, adjust the correspon-
ding button manually. If the posi-
tion is selected, lower fan speed is
adjusted to a higher fan speed.To defrost outside windshield
1. Set the fan speed to the highest
position.
2. Set the temperature to the
extreme hot (HI) position.
3. Press the defrost button ( ).
4. The air conditioning will be turned
on according to the detected
ambient temperature and outside
(fresh) air position will be selected
automatically.
If the position is selected, lower
fan speed is adjusted to a higher fan
speed.
Defogging logic
To reduce the probability of fogging
up the inside of the windshield, the
air intake or air conditioning are con-
trolled automatically according to
certain conditions such as or
position. To cancel or return the
defogging logic, do the following.
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Features of your vehicle
150 4
1. Turn the ignition switch to the ON
position.
2. Press the defroster button ( ).
3. While pressing the air conditioning
button (A/C), press the air intake
control button at least 5 times with-
in 3 seconds.
The indicator on the air intake button
blinks 3 times with 0.5 seconds of
interval. It indicates that the defog-
ging logic is canceled or returned to
the programmed status.
If the battery has been discharged or
disconnected, it resets to the defog
logic status.
Auto defogging system
Auto defogging reduces the probabil-
ity of fogging up the inside of the
windshield by automatically sensing
the moisture of inside the windshield.
The auto defogging system operates
when the heater or air conditioning is
on.This indicator illuminates
when the auto defogging
system senses the mois-
ture of inside the wind-
shield and operates.
If more moisture is in the vehicle, the
higher steps operate as follow. For
example if auto defogging does not
defog inside the windshield at step 1
Outside air position, it tries to defog
again at step 2 Blowing air toward
the windshield.
Step 1 : Outside air position
Step 2 :Operating the air conditioning
Step 3 :Blowing air toward the wind-
shield
Step 4 : Increasing air flow toward
the windshield
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4151
Features of your vehicle
If your vehicle is equipped with the
auto defogging system, it is automat-
ically activated when the conditions
are met. However, if you would like to
cancel the auto defogging system,
press the front defroster button 4
times within 2 seconds while press-
ing the AUTO button. The front
defroster indicator will blink 3 times
to notify you that the system is can-
celled. To use the auto defogging
system again, follow the procedures
mentioned above.
If the battery has been disconnected
or discharged, it resets to the auto
defogging status.✽NOTICE
• If the A/C off is manually selected
while the auto defogging system is
on, the auto defogging indicator
will blink 3 times to give notice
that manual operation is canceled.
• If the air quality system (AQS) is
selected while the auto defogging
system is operating at the step 1
outside air position, the recirculat-
ed air position may operate when
the outside air is polluted.
CAUTION
Do not remove the sensor cover
located on the upper end of the
passenger side windshield
glass. Damage to system parts
could occur and may not be cov-
ered by your vehicle warranty.