2015 Hyundai Sonata Hybrid service

Features of your vehicle
56
4
WARNING
Driving the vehicle with a warning
light on is dangerous. If the brake
warning light remains on, have the
brakes checked and repaired imme-
diately by an authorized HYUNDAI
dealer.
Brake system &
Parking brake & Brake fluid warning light
When the service brake system or the
regenerative brake system malfunctions,
the brake warning light is turned on and
'check brake' is displayed on the LCD.
Have the system checked by an author-
ized HYUNDAI dealer as soon as possi-
ble.
Parking brake warning
This light illuminated when the parking
brake is applied with engine start/stop
button in the START or ON position. The
warning light should go off when the
parking brake is released. Low brake fluid level warning
If the warning light remains on, it may
indicate that the brake fluid level in the
reservoir is low.
If the warning light remains on:
1. Drive carefully to the nearest safe
location and stop your vehicle.
2. With the engine stopped, check the brake fluid level immediately and add
fluid as required. Then check all brake
components for fluid leaks.
3. Do not drive the vehicle if leaks are found, the warning light remains on or
the brakes do not operate properly.
Have the vehicle towed to any author-
ized HYUNDAI dealer for a brake sys-
tem inspection and necessary repairs.
Your vehicle is equipped with a dual-
diagonal braking system. This means you
still have braking on two wheels even if
one of the brake circuits is damaged or
malfunctions. With only one of the circuits
working, more than normal pedal travel
and greater pedal pressure are required
to stop the car. Also, the car will not stop
in as short a distance with only a portion
of the brake system working. If the
brakes fail while you are driving, shift to a
lower gear for additional engine braking
and stop the car as soon as it is safe to
do so. To check bulb operation, check whether
the parking brake and brake fluid warning
light illuminates when the engine
start/stop button is in the ON position.
CAUTION
When the service brake system and
the regenerative brake system mal-functions, the brake warning light is turned on and 'check brake' is dis-played on the LCD, and also the warn- ing chime will sound. If this occursyou can stop your vehicle by apply-ing greater force to the brake pedal than normal and the stopping dis-tance will be longer. Have the system checked by an authorized HYUNDAIdealer as soon as possible.

467
Features of your vehicle
✽
✽NOTICE
• The above warning message may
appear even though the active air flap
has not malfunctioned. If this occurs,
check the air flap for foreign matter
or if the flap has frozen.
• If the active air flap has frozen, the warning message may not illuminate
immediately.
State of charge
This State of Charge(SOC) gauge indi-
cates the remaining Hybrid battery power.
If the SOC is near L level, the vehicle
automatically operates the engine to
charge the battery. However, if the service
indicator and MIL(Malfunction indicator
lamp) turn on when the State of
Charge(SOC) is near L(Low), have your
vehicle checked by an authorized
HYUNDAI dealer immediately.
OYFH041311N
CAUTION
Never try to start the vehicle if the
fuel tank is empty. In this condition,the engine cannot charge the high voltage battery of the hybrid sys-tem. If you try to start the vehiclewhen the fuel is empty, the high voltage battery will become dis-charged and be damaged.

493
Features of your vehicle
Climate control air filter
The climate control air filter installed
behind the glove box filters the dust or
other pollutants that come into the vehi-
cle 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 accumulation on the inside of
the windshield even when the outside
(fresh) air position is selected. If this hap-
pens, have the climate control air filter
replaced by an authorized HYUNDAI
dealer.
✽ ✽NOTICE
• Replace the filter according to the
Maintenance Schedule.
If the vehicle is being driven in severe
conditions such as dusty, rough roads,
more frequent climate control air fil-
ter inspections and changes are
required.
• When the air flow rate suddenly decreases, the system should be
checked at an authorized HYUNDAI
dealer.
Checking the amount of air con-
ditioner refrigerant and compres-
sor lubricant
When the amount of refrigerant is low,
the performance of the air conditioning is
reduced. Overfilling also has a negative
influence on the air conditioning system.
Therefore, if abnormal operation is
found, have the system inspected by an
authorized HYUNDAI dealer.
✽ ✽ NOTICE
It is important that the correct type and
amount of oil and refrigerant is used.
Otherwise, damage to the compressor and
abnormal system operation may occur.
WARNING
The air conditioning system for the
Hybrid vehicle should be serviced
by an authorized HYUNDAI dealer.
The Hybrid air conditioning system
is connected to the high voltage
system and requires special fluids,
tools and service procedures.
Improperly servicing the Hybrid air
conditioning system could result in
electrical shock, serious injury, or
even death.
OMG075033
Outside air
Recirculatedair
Climate control
air filter Blower
Evaporator
coreHeater core

Features of your vehicle
104
4
Climate control air filter
The climate control air filter installed
behind the glove box filters the dust or
other pollutants that come into the vehi-
cle 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 accumulation on the inside of
the windshield even when the outside
(fresh) air position is selected. If this hap-
pens, have the climate control air filter
replaced by an authorized HYUNDAI
dealer.
✽ ✽
NOTICE
• Replace the filter according to the
Maintenance Schedule.
If the vehicle is being driven in severe
conditions such as dusty, rough roads,
more frequent climate control air fil-
ter inspections and changes are
required.
• When the air flow rate suddenly decreases, the system should be
checked at an authorized HYUNDAI
dealer.
Checking the amount of air con-
ditioner refrigerant and compres-
sor lubricant
When the amount of refrigerant is low,
the performance of the air conditioning is
reduced. Overfilling also has a negative
influence on the air conditioning system.
Therefore, if abnormal operation is
found, have the system inspected by an
authorized HYUNDAI dealer.
✽ ✽ NOTICE
It is important that the correct type and
amount of oil and refrigerant is used.
Otherwise, damage to the compressor and
abnormal system operation may occur.OMG075033
Outside air
Recirculatedair
Climate control
air filter Blower
Evaporator
coreHeater core
WARNING
The air conditioning system for the
Hybrid vehicle should be serviced
by an authorized HYUNDAI dealer.
The Hybrid air conditioning system
is connected to the high voltage
system and requires special fluids,
tools and service procedures.
Improperly servicing the Hybrid air
conditioning system could result in
electrical shock, serious injury, or
even death.

4115
Features of your vehicle
Climate control air filter
The climate control air filter installed
behind the glove box filters the dust or
other pollutants that come into the vehi-
cle 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 accumulation on the inside of
the windshield even when the outside
(fresh) air position is selected. If this hap-
pens, have the climate control air filter
replaced by an authorized HYUNDAI
dealer.
✽ ✽NOTICE
• Replace the filter according to the
Maintenance Schedule.
If the vehicle is being driven in severe
conditions such as dusty, rough roads,
more frequent climate control air fil-
ter inspections and changes are
required.
• When the air flow rate suddenly decreases, the system should be
checked at an authorized HYUNDAI
dealer.
Checking the amount of air con-
ditioner refrigerant and compres-
sor lubricant
When the amount of refrigerant is low,
the performance of the air conditioning is
reduced. Overfilling also has a negative
influence on the air conditioning system.
Therefore, if abnormal operation is
found, have the system inspected by an
authorized HYUNDAI dealer.
✽ ✽ NOTICE
It is important that the correct type and
amount of oil and refrigerant is used.
Otherwise, damage to the compressor and
abnormal system operation may occur. OMG075033
Outside air
Recirculatedair
Climate control
air filter Blower
Evaporator
coreHeater core
WARNING
The air conditioning system for the
Hybrid vehicle should be serviced
by an authorized HYUNDAI dealer.
The Hybrid air conditioning system
is connected to the high voltage
system and requires special fluids,
tools and service procedures.
Improperly servicing the Hybrid air
conditioning system could result in
electrical shock, serious injury, or
even death.

Features of your vehicle
132
4
(Continued)
Do not place beverages close to the audio system. Spilling bever-ages may lead to system mal-function.
In case of product malfunction, please contact your place of pur-chase or After Service center.
Placing the audio system within an electromagnetic environmentmay result in noise interference.
Prevent caustic solutions such as perfume and cosmetic oil fromcontacting the dashboardbecause they may cause damageor discoloration.✽
✽ NOTICE - USING THE USB
DEVICE
• To use an external USB device,
make sure the device is not connect-
ed when starting up the vehicle.
Connect the device after starting
up.
• If you start the engine when the USB device is connected, it may
damage the USB device. (USB
flashdrives are very sensitive to
electric shock.)
• If the engine is started up or turned off while the external USB device is
connected, the external USB device
may not work.
• The System may not play unau- thenticated MP3 or WMA files.
1) It can only play MP3 files with the compression rate between
8Kbps~320Kbps.
2) It can only play WMA music files with the compression rate between
8Kbps~320Kbps.
• Take precautions for static electric- ity when connecting or disconnect-
ing the external USB device. (Continued)(Continued)
• An encrypted MP3 PLAYER is not
recognizable.
• Depending on the condition of the external USB device, the connected
external USB device can be unrec-
ognizable.
• When the formatted byte/sector setting of External USB device is
not either 512BYTE or 2048BYTE,
then the device will not be recog-
nized.
• Use only a USB device formatted to FAT 12/16/32.
• USB devices without USB I/F authentication may not be recog-
nizable.
• Make sure the USB connection ter- minal does not come in contact with
the human body or other objects.
• If you repeatedly connect or discon- nect the USB device in a short peri-
od of time, it may break the device.
• You may hear a strange noise when connecting or disconnecting a USB
device. (Continued)

4135
Features of your vehicle
✽
✽NOTICE - Bluetooth®
Wireless Technology
• The Bluetooth®word mark and logos
are registered trademarks owned by
Bluetooth SIG, lnc. and any use of
such marks is under license.
A Bluetooth
®enabled call phone is
required to use Bluetooth®wireless
technology.
• Bluetooth
®Wirelss Technology phone
compatibility can be checked by visit-
ing www
. hyundaiusa.comand under
the SERVICE & PARTS - BLUE-
TOOTH COMPATIBILITY menu.
✽ ✽ NOTICE - BEFORE USING
THE
Bluetooth®
HANDSFREE
What is Bluetooth®?
•Bluetooth®refers to a short-distance
wireless networking technology which
uses a 2.4GHz ~ 2.48GHz frequency to
connect various devices within a short
distance.
• Supported within PCs, external devices, Bluetooth
®phones, PDAs,
various electronic devices, and auto-
motive environments, Bluetooth
®
allows data to be transmitted at high
speeds without having to use a con-
nector cable.
• Bluetooth
®Handsfree refers to a
device which allows the user to conve-
niently make phone calls with
Bluetooth
®mobile phones through the
audio system.
• Bluetooth
®Handsfree may not be sup-
ported in some mobile phones. To learn
more about mobile device compatibility,
visit www
. hyundaiusa.com.
✽ ✽ NOTICE - PRECAUTIONS
FOR SAFE DRIVING
•Bluetooth®Handsfree is a feature that
enables drivers to practice safe driv-
ing. Connecting the head unit with a
Bluetooth
®phone allows the user to
conveniently make and receive calls
and use contacts. Before using
Bluetooth
®, carefully read the contents
of this user’s manual.
• Excessive use or operations while driving may lead to negligent driving
practices and result in accidents.
Refrain from excessive operations
while driving.
• Viewing the screen for prolonged peri- ods of time is dangerous and may lead
to accidents. When driving, view the
screen only for short periods of time.

Features of your vehicle
144
4
HD RadioTMTechnology
(for HD RADIOTMequipped model)
HD Radio Technology manufactured
under license from iBiquity Digital
Corporation. U.S. and Foreign Patents.
HD Radio™ and the HD, HD Radio, and
“Arc” logos are proprietary trademarks of
iBiquity Digital Corp. Program Service Data: Contributes to the
superior user experience of HD Radio
Technology. Presents song name, artist,
station IDs, HD2/HD3 Channel Guide,
and other relevant data streams.
Adjacent to traditional main stations are
extra local FM channels. These
HD2/HD3 Channels provide new, original
music as well as deep cuts into tradition-
al genre.
Digital, CD-quality sound. HD Radio
Technology enables local radio stations
to broadcast a clean digital signal. AM
sounds like today’s FM and FM sounds
like a CD.
HD RadioTMsignal delay
To overcome the delay that digital sys-
tems inherently produce, HD RadioTM
technology first uses the audio signal of
the analog broadcasting when you tune
to an AM station or to the main channel
of a FM station. After that, the system will
blend from analog to digital signal.
Normally, this blending is very smooth. If
you experience a skip in program content
of several seconds, the radio station has
not implemented HD Radio
TMbroadcast-
ing correctly. This is not a problem with
your audio system.
Due to the fact that sub channels are only
broadcasting digital, blending from analog
to digital signal is not possible if you tune
to a sub channel. In this case playback of
the sub channel starts after several sec-
onds, this is a normal function.