2011 Hyundai Sonata Hybrid charging

H2
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 bat-
tery.
HEV computer decides according to
drive condition when to use engine
from when to use the electric motor or
even both at times.
Fuel is saved when the engine is not
running at idle at times or the vehicle
is driven by the electric motor from
the HEV battery.
The charge of the HEV battery has to
be maintained so at times the engine
becomes a generator which includes
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 under-
stands the situation of economical driving.
If the driver drives the vehicle with eco-
nomical driving, the ECO LEVEL rises.
And it means the CO2 emission reduction.
In TOTAL ECO SCORE, when you get the
maximum step of ECO LEVEL, ECO sys-
tem adds 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, ECO level will be upgrad-
ed.
- However, if you do not drive economical-
ly, the ECO level will be down-graded.
HYUNDAI HYBRID SYSTEM
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17
Introduction
INDICATOR SYMBOLS ON THE INSTRUMENT CLUSTER
Seat belt warning light
High beam indicator
Turn signal indicator
ABS warning light
Brake system & Parking brake &
Brake fluid warning light
Engine oil pressure warning light
Malfunction indicator light
Air bag warning light
Cruise indicator
Cruise SET indicator
Immobilizer indicator
(if equipped)
Low fuel level warning light
* For more detailed explanations, refer
to “Instrument cluster” in section 4.
Charging system warning lightTail light indicator
Trunk ajar warning light
Front fog light indicator
(if equipped)
Door open position indicator Low tire pressure telltale
(TPMS malfunction indicator)
ECO Guide
Electric power steering (EPS)
system warning light
EPS
ESC indicator
(ESC malfunction indicator)
ESC OFF indicator
Vehicle ready indicator EV (Electronic Vehicle) MODE
Service indicator

Safety features of your vehicle
6 3
Forward and rearward
Push the control switch forward or rear-
ward to move the seat to the desired
position. Release the switch once the
seat reaches the desired position.Seat cushion height (for driver’s seat)
Pull the front portion of the control switch
up to raise or push down to lower the
front part of the seat cushion. Pull the
rear portion of the control switch up to
raise or push down to lower the rear part
of the seat cushion. Release the switch
once the seat reaches the desired posi-
tion.
CAUTION
The power seat is driven by an
electric motor. Stop operating
once the adjustment is complet-
ed. Excessive operation may
damage the electrical equipment.
When in operation, the power
seat consumes a large amount of
electrical power. To prevent
unnecessary charging system
drain, don’t adjust the power seat
longer than necessary while the
engine is not running.
Do not operate two or more power
seat control switches at the same
time. Doing so may result in
power seat motor or electrical
component malfunction.
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Features of your vehicle
58 4
Charging system warning
light
This warning light indicates a malfunction
of either the generator or electrical
charging system.
If the warning light comes on while the
vehicle is in motion:
1. Drive to the nearest safe location.
2. With the engine off, check the genera-
tor drive belt for looseness or break-
age.
3. If the belt is adjusted properly, a prob-
lem exists somewhere in the electrical
charging system. Have an authorized
HYUNDAI dealer correct the problem
as soon as possible.
Front fog light indicator
(if equipped)
This light comes on when the front fog
lights are ON.
Trunk lid open warning
light
This warning light illuminates when the
trunk lid is not closed securely with the
engine start/stop button in any position.
Door open warning
light
This indicator illuminates when a door is
not closed securely.
Immobilizer indicator
(if equipped)
With smart key system
If any of the following occurs in a vehicle
equipped with the smart key, the immobi-
lizer indicator illuminates, blinks or the
light goes off.
When the smart key is in the vehicle, if
the engine start/stop button is turned to
the ON position, the indicator will illumi-
nate for about few seconds. However,
when the smart key is not in the vehicle,
if the engine start/stop button is
depressed, the indicator will blink for a
few seconds to indicate that you will not
be able to start the hybrid system.
When the engine start/stop button is
turned to the ON position and the indica-
tor turns off after 2 seconds, the system
may need repair. Have the vehicle
checked by an authorized HYUNDAI
dealer.
When the battery is weak, if the engine
start/stop button is depressed, the indica-
tor will blink and you will not be able to
start the hybrid system. However, you
may still be able to start the hybrid system
by inserting the smart key in the smart
key holder. If smart key system related
parts need repair, the indicator blinks.

Features of your vehicle
66 4
Check brake
'Check brake' is displayed when the
brake function is not well or the regener-
ative brake system is not operated with
brake system malfunction. Refer to the
page 4-56 for the relative information.
Have the system checked by an author-
ized HYUNDAI dealer as soon as possi-
ble.
Check charging system
This warning will be illuminated with indi-
cator and warning sound as follow;
- When the communication problem
occurs in LCD
✽ ✽
NOTICE
When the high voltage is low, the warn-
ing may occur. In that time, the warning
may disappear when the battery is
charged by engine.
Check active air flap system
This warning will be illuminated as follow;
- When the actuator flap malfunction
detected
- When the actuator air flap controller
malfunction detected
- In a condition opening the air flap, if the
air flap is not open.
When the all conditions illuminating the
warning are clear, the warning will be off.
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WARNING
Driving with the 'check brake' on is
dangerous. Have the system
checked by an authorized HYUNDAI
dealer as soon as possible.

477
Features of your vehicle
Room lamp
To turn the room lamp ON or OFF, push
the switch or lens.
Trunk lamp
The trunk room lamp comes on when the
trunk is opened.
Glove box lamp
If the glove box is opened, the glove box
lamp will come on.
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CAUTION
Do not leave the lamp switches on
for an extended period of time when
the vehicle is not running.
CAUTION
The trunk lamp comes on as long
as the trunk lid is open. To prevent
unnecessary charging system
drain, close the trunk lid securely
after using the trunk.
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CAUTION
To prevent unnecessary charging
system drain, close the glove box
securely after using the glove box.

Features of your vehicle
78 4
Vanity mirror lamp
Pull the sunvisor downward and you can
turn the vanity mirror lamp ON or OFF by
pushing the button.
: To turn the lamp ON.
To turn the lamp OFF.
Interior lamp AUTO cut
When all entrances are closed, if you
lock the vehicle by using the smart key,
all interior lamp will be off within 5 sec-
onds.
If you do not operate anything in the
vehicle after turning off the engine, the
lights will turn off after 20 minutes.
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CAUTION
To prevent unnecessary charging
system drain, turn off the lamp by
pushing the O button after using
the lamp.

55
Driving your vehicle
Illuminated engine start/stop but-
ton
Whenever the front door is opened, the
engine start/stop button will illuminate for
your convenience. The light will go off
after about 30 seconds when the door is
closed.
HEV system start/stop button
position
OFF
To turn off the system, press the engine
start/stop button with the engine
start/stop button in the ON position and
the shift lever in P(Park). When you press
the engine start/stop button without the
shift lever in P(Park), the engine
start/stop button does not turn to the
OFF position, but turns to the ACC posi-
tion.
✽ ✽
NOTICE
When you turn off the HEV system, the
vehicle should be stopped.
ACC(Accessory)
Press the HEV system start/stop button
while it is in the OFF position without
depressing the brake pedal.
The electrical accessories are operative.
If you leave the HEV system start/stop
button in the ACC position for more than
1 hour, the battery power will turn off
automatically to prevent the battery from
discharging.
ON
Press the HEV system start/stop button
while the button is in the ACC position
without depressing the brake pedal.
The warning lights can be checked
before the HEV system is started. Do not
leave it in the ON position if the HEV sys-
tem is not running to prevent battery dis-
charge.
START
To start the hybrid system, press the
brake pedal and press the HEV system
start/stop button with the shift lever in the
P(Park).
ENGINE START/STOP BUTTON
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WARNING
In an emergency situation while the
vehicle is moving, you can turn off
the engine and turn the engine
start/stop button to the ACC position
by pressing the engine start/stop
button for more than 2 seconds or 3
times successively within 3 sec-
onds. If the vehicle is moving over
10km/h, you can restart the engine
without pressing the brake pedal by
pressing the engine start/stop but-
ton regardless of transaxle position.