2019 HYUNDAI SONATA HYBRID engine

H40
Regeneration
The high-voltage battery is charged
up by the regenerative brake system. (Wheel ➞Battery)
Engine Brake
The engine braking is used to decel-
erate the vehicle. (Wheel ➞Engine)
Power Reserve
The engine is simultaneously used to
drive the vehicle and to charge up
the high-voltage battery. (Engine ➞Wheel & Battery)
■ Type A■ Type B
OLFH047772L/OLFH047216L
■ Type A■ Type B
OLFH047773L/OLFH047220L
DDRRIIVV IINN GG TT HH EE HH YY BBRRIIDD //PP LLUU GG--IINN HH YY BBRRIIDD VV EEHH IICC LLEE (( CC OO NNTT..))
■ Type A■ Type B
OLFH047774L/OLFH047224L

H41
Engine Generation/Motor Drive
The engine charges up the high-volt-
age battery. The motor power is used
to drive the vehicle. (Engine ➞Battery ➞Wheel)
Engine Generation/Regeneration
The engine and regenerative brake
system charges up the high-voltage
battery.
(Engine & Wheel ➞Battery)
Engine Brake/Regeneration
The engine braking is simultaneously
used to decelerate the vehicle and to
charge up the high-voltage battery. (Wheel ➞Engine & Battery)
■ Type A■ Type B
OLFH047775L/OLFH047226L
■ Type A■ Type B
OLFH047776L/OLFH047226L
■ Type A■ Type B
OLFH047777L/OLFH047218L

H42
High Voltage Battery System
OLFHQ014002K
OLFHQ014009L
■ HPCU (Hybrid Power Control Unit)
■ High Voltage Battery System Never touch orange colored or
high voltage labeled compo-
nents, including wires, cables,
and connections. When the insu-
lators or covers are damaged or
removed, severe injury or death
from electrocution may occur.
WARNING
While replacing the fuses in the
engine compartment, never
touch the HPCU. The HPCU car-
ries high voltage. Touching the
HPCU may result in electrocu-
tion, serious injury, or death.
WARNING
In the hybrid system, the hybrid
battery uses high voltage tooperate the motor and other
components. This high voltage
hybrid battery system can be
very dangerous. Never touch the
hybrid system. When you touch
the hybrid battery system, seri-
ous injury or death may occur.
WARNING
Do not pile up any items in an
area behind the high voltage
battery. In a crash, the battery
may become unstable, or its
performance may degrade.
Do not apply strong force nor
pile up any items above the
trunk. Such an attempt may
distort the high voltage battery
case, causing a safety problem
or degrading the performance.
(Continued)
CAUTION
SSAA FFEE TT YY PP RR EECCAA UU TTIIOO NNSS FF OO RR HH YY BBRRIIDD SS YY SSTT EEMM

H44
SSAA FFEE TT YY PP RR EECCAA UU TTIIOO NNSS FF OO RR HH YY BBRRIIDD SS YY SSTT EEMM (( CC OO NNTT..))
When the vehicle is paint baked,
do not bake over 30 minutes in
70°C (158°F) or 20 minutes in
80°C (176°F) degree.
Do not wash the engine compart- ment, using water. Water may
cause an electric shock and may
damage electronic components.
NOTICE
Never assemble or disassemble
the high voltage battery system.
If you assemble or disassem-
ble the high voltage battery
system, the durability and per-
formance of the vehicle may be
damaged.
When you want to check the
high voltage battery system,
have the vehicle checked and
inspected by an authorized
HYUNDAI dealer.
Do not touch the high voltage
battery and high voltage cable
connected to motor (orange
color). Severe burns and elec-
tric shock may occur. For your
safety, do not touch the cover
of electronic components and
electronic cable. Do not remove
the cover of electronic compo-
nents and electronic cable. In
particular, never touch the high
voltage battery system when
the hybrid system in operation.
It may result in death or serious
injury.
WARNING
Never use the package mod-
ules (high voltage battery,
inverter and converter) for any
other purpose.
Do not use an unauthorized
battery charger to charge the
high voltage battery. Doing so
may result in death or serious
injury.
Never place the high voltage
system near or in a fire.
Never drill into or strike the
package module. Otherwise, it
may be damaged. An electric
shock may occur, resulting in
serious injury or death.
WARNING

H49
When the hybrid vehicle shuts off
When the high voltage battery is dis-
charged, when the 12-volt battery isdischarged, or when the fuel tank is
empty, the hybrid system may not
operate while driving. When the
Hybrid system does not operate, do
the followings:
1.Gradually reduce the vehiclespeed. Pull over your vehicle off
the road in a safe area.
2.Locate the shift lever in P (Park).
3. Turn ON the hazard warning flashers.
4.Turn OFF the Engine Start/Stop button, and try to start the hybrid system, while depressing the
brake pedal and pressing the
Engine Start/Stop button. 5.When the hybrid system still does
not operate, refer to "EMERGENCY
STARTING" in the chapter 6.
Before jump-starting the vehicle,
check the fuel level and the exact
procedure to jump start. For further
details, refer to "EMERGENCY
STARTING" in the chapter 6. When
the fuel level is low, do not attempt
to drive the vehicle only with the
battery power. The high voltage bat-
tery may be discharged, and the
hybrid system will turn OFF.

Your vehicle at a glance
1
Your vehicle at a glance
1Exterior overview (I) .............................................1-2
Exterior overview (II) ............................................1-3
Interior overview ....................................................1-4
Instrument panel overview ...................................1-5
Engine compartment .............................................1-6

IINN SSTT RR UU MM EENN TT PP AA NN EELL OO VVEERR VV IIEE WW
1-5
Your vehicle at a glance
1
OLFP017004N
■Type A
■Type B
The actual shape may differ from the illustration. 1. Light control/Turn signals ................3-98
2. Steering wheel audio controls* ........4-3
/
Bluetooth®wireless technology
hands-free controls* ..........................4-4
3. Instrument cluster ..........................3-56
4. Horn ................................................3-18
5. Driver’s front air bag........................2-49
6. Wiper/Washer................................3-111
7. Cruise controls* ..............................5-79
8. Engine Start/Stop button ..................5-5
9. Audio system/Navigation system ......4-4
10. Climate control system ..............3-119
11. Automatic transmission
..................5-12
12. Passenger’s front air bag ..............2-49
13. Glove box ....................................3-137
14. Drive mode integrated control system ................................5-41, 5-43
15. Rear parking assist system ........3-115
16. HEV button ..................................H-26
17. EPB (Electronic Parking Brake)* ..5-22
18. AUTO HOLD ................................5-28
19. Power outlet ................................3-142
20. Wireless cellular phone charging system ........................................3-139
21. AUX, USB and iPod ®
port ..............4-2
* : if equipped

1-6
Your vehicle at a glanceE
E NN GGIINN EE CC OO MM PPAA RRTTMM EENN TT
OLFH017005
1. Engine oil filler cap ...........................7-19
2. Engine oil dipstick .............................7-18
3. Radiator cap .....................................7-20
4. Engine coolant reservoir ...................7-21
5. Brake fluid reservoir ..........................7-24
6. Air cleaner.........................................7-26
7. Inverter coolant reservoir ..................7-20
8. Windshield washer fluid reservoir .....7-25
9. Fuse box ...........................................7-52
The actual engine room in the vehicle may differ from the illustration.