2013 Hyundai Sonata Hybrid stop start

735
Maintenance
12V Battery recharging
Your vehicle has a maintenance-free,
calcium-based battery.
If the 12V battery becomes discharged
in a short time (because, for example,
the headlights or interior lights were
left on while the vehicle was not in
use), jump start it from another vehi-
cle’s 12V battery or recharge it by slow
charging (trickle) for 10 hours.
If the 12V battery gradually discharges
because of high electric load while the
vehicle is being used, recharge it at 20-
30A for two hours.CALIFORNIA PROPOSI-
TION 65 WARNING
Battery posts, terminals, and relat-
ed accessories contain lead and
lead compounds, chemicals known
to the State of California to cause
cancer, birth defects and reproduc-
tive harm. Batteries also contain
other chemicals known to the State
of California to cause cancer. Wash
hands after handling.
CAUTION
When you don’t use the vehicle
for a long time in the low temper-
ature, remove the 12V battery and
store it indoors.
Always charge the 12V battery
fully to prevent 12V battery case
damage in low temperatures.
If you connect unauthorized elec-
tronic devices to the 12V battery,
the 12V battery may be dis-
charged. Never use unauthorized
devices.
(Continued)
When lifting a plastic-cased bat-
tery, excessive pressure on the
case may cause battery acid to
leak, resulting in personal injury.
Lift with a battery carrier or with
your hands on opposite corners.
Never attempt to recharge the
battery when the battery cables
are connected.
The electrical ignition system
works with high voltage. Never
touch these components with the
engine running or the engine
start/stop button positioned on.
Failure to follow the above warn-
ings can result in serious bodily
injury or death.

751
Maintenance
Instrument panel fuse replace-
ment
1. Turn the engine start/stop button and
all other switches off.
2. Open the fuse panel cover.3. Pull the suspected fuse straight out.
Use the removal tool provided in the
engine compartment fuse panel.
4. Check the removed fuse; replace it if it
is blown.
5. Push in a new fuse of the same rating,
and make sure it fits tightly in the clips.
If it fits loosely, consult an authorized
HYUNDAI dealer.
If you do not have a spare, use a fuse of
the same rating from a circuit you may
not need for operating the vehicle, such
as the cigarette lighter fuse.
If the headlights or other electrical com-
ponents do not work and the fuses are
OK, check the fuse panel in the engine
compartment. If a fuse is blown, it must
be replaced.
Memory fuse
Your vehicle is equipped with a memory
fuse to prevent 12V battery discharge if
your vehicle is parked without being
operated for prolonged periods. Use the
following procedures before parking the
vehicle for prolonged periods.
1. Turn off the engine.
2. Turn off the headlights and tail lights.
3. Open the driver’s side panel cover and
pull up the memory fuse.
OYF079020OYFH071021NOYF079022

Maintenance
52 7
✽
✽
NOTICE
• If the memory fuse is pulled up from
the fuse panel, the warning chime,
audio, clock and interior lamps, etc.,
will not operate. Some items must be
reset after replacement. Refer to
“Battery” in this section.
• Even though the memory fuse is
pulled up, the battery can still be dis-
charged by operation of the head-
lights or other electrical devices.
Engine compartment fuse
replacement
1. Turn the engine start/stop button and
all other switches off.
2. Remove the fuse panel cover by
pressing the tab and pulling up.3. Check the removed fuse; replace it if it
is blown. To remove or insert the fuse,
use the fuse puller in the engine com-
partment fuse panel.
4. Push in a new fuse of the same rating,
and make sure it fits tightly in the clips.
If it fits loosely, consult an authorized
HYUNDAI dealer.
OYFH071023N
CAUTION
After checking the fuse panel in the
engine compartment, securely
install the fuse panel cover. If not,
electrical failures may occur from
water contact.

755
Maintenance
Inner fuse panel (Driver’s side fuse panel)
Description Fuse rating Protected component
P/SEAT DRI 30A Driver Manual Switch
AMP 30A JBL AMP, AMP
TRUNK 10A I/P Junction Box (Trunk Lid Relay), Fuel Filler Door & Trunk Lid Switch
SAFETY POWER WINDOW 25A Safety Power Window Module
P/WDW LH 25A Power Window Main Switch, Rear Power Window Switch LH
MODULE HEV 7.5A Low DC Converter, Hybrid Inverter, BMS Control Module
BMS 10A BMS Control Module
START 2 7.5A Fob Holder, Start Stop Button Switch, PDM, Stop Lamp Switch, Smart Key Module
MODULE 3 7.5AE/R Fuse & Relay Box (AUX Water Pump Relay), Sport Mode Switch, Key Solenoid,
Active Air Flap
P/WDW RH 25A Power Window Main Switch, Rear Power Window Switch RH
HTD MIRR 10A Driver Power Outside Mirror, Passenger Power Outside Mirror
P/SEAT ASST 20A Passenger Power Seat
S/HEATER FRT 15A Driver Seat Warmer Module, Passenger Seat Warmer Module
PDM 25A PDM
CLOCK 10ASmart Key Module, PDM, BCM, Front Monitor, Clock, Rear Camera Module,
A/V & Navigation Head Unit, Audio, Overhead Console Lamp, AMP, JBL AMP,
Power Outside Mirror Switch
A/CON 7.5A E/R Fuse & Relay Box (Blower Relay), A/C Control Module
S/HTR RR 20A Rear Seat Warmer Switch LH, Rear Seat Warmer Switch RH
SUN ROOF 20A Panorama Sunroof
POWER OUTLET 1 15A Front Power Outlet RH
MODULE 2 7.5A Rear Camera Module, BCM
Spare 20A -

757
Maintenance
Engine compartment main fuse panel
Description Fuse rating Protected component
MULTI
FUSEB+3 60AI/P Junction Box (Power Window Relay, Fuse - TRUNK 10, S/HEATER FRT 15A,
SAFETY POWER WINDOW 25A, MODULE 3 7.5A, PDM 25A, Power Connector - AUDIO 15A)
IG 1 40A Smart Key - IG 1 Relay, ACC Relay
EMS 40A EMS Box (Fuse - HORN 15A, ECU 3 10A, ECU 1 30A, F/PUMP 20A)
RR HTD 40A RR HTD Relay
BLOWER 40A Blower Relay
B+4 60AI/P Junction Box (Fuse - P/SEAT DRI 30A, AMP 30A, START 2 7.5A, BMS 10A, IPS 2, IPS 3,
IPS 5, IPS 8)
MDPS 80A EPS Control Module
C/FAN LO 40A C/FAN LO Relay
FUSEB+2 50AI/P Junction Box (Fuse - SUNROOF 20A, DR LOCK, IPS 1, IPS 4, IPS 6, IPS 7, IPS 9,
Power Connector - ROOM LP 10A)
WIPER 10A PCM
RR HTD IND 10A A/C Control Module
LDC 10A Low DC Converter, Hybrid Inverter
BMS C/FAN 15A BMS Blower Motor Relay
TCU 1 20A PCU
STOP LP 15A Stop Lamp Relay, HAC Relay
DEICER 20A Deicer Relay
ECU 2 20A PCU
HCU 20A Hybrid Control
IG 2 30A Smart Key - IG 2 Relay
AHB 1 40A AHB Control Module
OIL PUMP 1 20A Electric Oil Pump Unit

Maintenance
60 7
LIGHT BULBS
Use only bulbs of the specified wattage.
✽
✽
NOTICE
After heavy, driving rain or washing,
headlight and taillight lenses could
appear frosty. This condition is caused by
the temperature difference between the
lamp inside and outside. This is similar
to the condensation on your windows
inside your vehicle during the rain and
doesn’t indicate a problem with your
vehicle. If the water leaks into the lamp
bulb circuitry, have the vehicle checked
by an authorized HYUNDAI dealer.
WARNING - Working on
the lights
Prior to working on the light, firmly
apply the parking brake, ensure
that the engine start/stop button is
in the OFF position and turn off the
lights to avoid sudden movement
of the vehicle and burning your fin-
gers or receiving an electric shock.
CAUTION
Be sure to replace the burned-out
bulb with one of the same wattage
rating. Otherwise, it may cause
damage to the fuse or electric
wiring system.CAUTION
If you don’t have necessary tools,
the correct bulbs and the expertise,
consult an authorized HYUNDAI
dealer. In many cases, it is difficult
to replace vehicle light bulbs
because other parts of the vehicle
must be removed before you can
get to the bulb. This is especially
true if you have to remove the head-
light assembly to
get to the bulb(s).
Removing/installingthe headlight
assembly can result in damage to
the vehicle.
WARNING
When you replace the front head-
lamp bulb be careful of the HPCU
system, the high voltage cable
(orange color), and high voltage
components for the hybrid system.
It is very dangerous because the
HPCU has high voltage. Do not
touch those high voltage systems
or it could result in the electric
shock or burns or even death.
CAUTION
If your vehicle is equipped with
High Intensity Discharge (HID)
headlights, these headlights con-
tain mercury. So if you need to have
your vehicle disposed, you should
remove the HID Headlights before
disposal. The removed HID head-
lights should be recycled, re-used
or disposed as hazardous waste.

777
Maintenance
Do not operate the engine in confined
or closed areas (such as garages) any
more than what is necessary to move
the vehicle in or out of the area.
When the vehicle is stopped in an
open area for more than a short time
with the engine running, adjust the
ventilation system (as needed) to draw
outside air into the vehicle.
Never sit in a parked or stopped vehi-
cle for any extended time with the
engine running.
When the engine stalls or fails to start,
excessive attempts to restart the
engine may cause damage to the
emission control system.Operating precautions for catalytic
converters (if equipped)
Your vehicle is equipped with a catalytic
converter emission control device.
Therefore, the following precautions
must be observed:
Use only UNLEADED FUEL for gaso-
line engines.
Do not operate the vehicle when there
are signs of engine malfunction, such
as misfire or a noticeable loss of per-
formance. Do not misuse or abuse the engine.
Examples of misuse are coasting with
the ignition off and descending steep
grades in gear with the ignition off.
Do not operate the engine at high idle
speed for extended periods (5 minutes
or more).
Do not modify or tamper with any part
of the engine or emission control sys-
tem. All inspections and adjustments
must be made by an authorized
HYUNDAI dealer.
Avoid driving with a extremely low fuel
level. Running out of fuel could cause
the engine to misfire, damaging the
catalytic converter.
Failure to observe these precautions
could result in damage to the catalytic
converter and to your vehicle.
Additionally, such actions could void your
warranties.
WARNING- Fire
A hot exhaust system can ignite
flammable items under your vehi-
cle. Do not park, idle, or drive the
vehicle over or near flammable
objects, such as grass, vegetation,
paper, leaves, etc.

H2
The Hyundai Hybrid Electric Vehicle
(HEV) uses a gasoline engine and an
electric motor for power. The electric
motor is run from a 280V high voltage
HEV battery.
Depending on the driving conditions,
the HEV computer decides whether to
use the engine or use the electric
motor or even both at times.
Fuel is saved when the engine is not
running at idle or when the vehicle is
driven by the electric motor from the
HEV battery.
The HEV battery charge must be
maintained for the times when the
engine acts as a generator, such as
when stopped at idle. Charging also
occurs when decelerating or by
regenerative braking.Display of Hybrid system
Many displays provide information about
the hybrid system, such as, ECO level
and ECO score.
Through the ECO LEVEL, the driver can
understand the benefits of economical
driving.
If the driver is using economical driving
techniques, the ECO LEVEL rises. This
means the CO2 emissions are reduced.
In TOTAL ECO SCORE, when you reach
the maximum step of ECO LEVEL, the
ECO system calculates the score and
saves the score.ECO level display flower mode.1
When the hybrid vehicle is started, the
ECO level step 4 is displayed. If you drive
economically, the ECO level will be
upgraded.
- However, if you do not drive economically,
the ECO level will be down-graded.
HYUNDAI HYBRID SYSTEM
OYFH041337N