2018 Hyundai Sonata Plug-in Hybrid engine

H29
Check Hybrid system.Do not start engine.
This warning message is displayed
when the hybrid battery power
(SOC) level is low. A warning chime
will sound until the problem is solved.
In this case, have your vehicle
inspected by an authorized HYUNDAI
dealer.
Stop vehicle and check powersupply
This warning message is displayed
when a failure occurs in the power
supply system.
In this case, park the vehicle in a
safe location and tow your vehicle to
the nearest authorized HYUNDAI
dealer and have the vehicle inspect-
ed.
Park with engine On to charge battery
This warning message is displayed
when the hybrid battery power
(SOC) level is low.
In this case, park the vehicle in a
safe location and wait until the hybrid
battery is charged.
You can increase the hybrid battery
charging rate by holding the acceler-
ator pedal to the floor with transmis-
sion in P. The engine will rev high but
it will be limited for charging purpose
when you hold the pedal to the floor.
■ Type A■ Type B
OLFH047760L/OLFH047240L
■ Type A■ Type B
OLFH047761L/OLFH047230L
■ Type A■ Type B
OLFH047762L/OLFH047232L

H31
Check regenerative brakes
This warning message is displayed
when the brake performance is low
or the regenerative brake does not
work properly due to a failure in the
brake system.
In this case, it may take longer for the
brake pedal to operate and the brak-
ing distance may become longer.
Check Virtual Engine SoundSystem
This message is displayed when
there is a problem with the Virtual
Engine Sound System (VESS).
In this case, have your vehicle
inspected by an authorized HYUNDAI
dealer.
Coasting guide (if equipped)
A chime will sound and the coasting
guide indicator will blink four times to
inform the driver when to take the
foot off from the accelerator by antic-
ipating a decelerating event* based
on the analysis of driving routes and
road conditions of the navigation. It
encourages the driver to remove foot
from the pedal and allow coasting
down the road with EV motor only.
This helps prevent unnecessary fuel
consumption and increases fuel effi-
ciency.
OLFH045254N
■ Type A■ Type B
OLFH047766L/OLFH047250L
■ Type A■ Type B
OLFH047767L/OLFH047543L

H32
D
DR
RI
IV
V I
IN
N G
G
T
T H
H E
E
H
H Y
Y B
BR
RI
ID
D /
/P
P L
LU
U G
G-
-I
IN
N
H
H Y
Y B
BR
RI
ID
D
V
V E
EH
H I
IC
C L
LE
E
(
( C
C O
O N
NT
T.
.)
)
❈ Example of a deceleration event is
going down an extended hill, slow-
ing down approaching a toll booth,
and approaching reduced speed
zones.

Press the Engine Start/Stop button and put the shift lever in P(Park). In the
User Settings Mode, select Driving Assist, Coasting Guide, and then On to
turn on the system. Cancel the selection of coasting guide to turn off the sys-
tem. For the explanation of the system, press and hold the [OK] button.

To activate the system, take the following procedures. Enter your destination
information on the navigation and select the driving route. Select the ECO
mode in the Integrated Driving Control System. Then, satisfy the following.
- The driving speed should be between 37 mph (60 km/h) and 99 mph (160 km/h).
❈The operating speed may vary due to difference between instrument clus-
ter and navigation effected by tire inflation level.
OLFH047182N/OLFH047556N/OLFP047578N
➜➜

H33
Information
Coasting guide is only a supplemental
system to assist with fuel-efficient driv-
ing. Thus, the operating conditions
may be different in accordance with
traffic/road conditions (i.e. driving in a
traffic jam, driving on a slope, driving
on a curve). Thus, take the actual driv-
ing conditions into consideration, such
as distances from the vehicles ahead/
behind, while referring to the coasting
guide system as guidance.
Unplugging vehicle to start(Plug-in hybrid)
The message is displayed when you
start the engine without unplugging
the charging cable. Unplug the
charging cable, and then start the
vehicle.
Remaining time to fully chargethe battery (Plug-in hybrid)
The message is displayed to notify
the remaining time to fully charge the
battery.
i
OLFP045258NOLFP045260N

H35
Check fuel door(Plug-in hybrid)
The message is displayed when the
vehicle is driven with the fuel filler
door opened. Close the fuel filler
door and then start driving.
Park with engine On to charge battery(Plug-in hybrid)
The message is displayed when the
charging connector is plugged with
the shift lever in R (Reverse), N
(Neutral) or D (Drive). Move the shift
lever to P (Park) and re-start the
charging process.
EV / HEV/ CHG modes (Plug-in hybrid)
A corresponding message is displayed
when a mode is selected by pressing
the HEV button
OLFH047787N
OLFH047786N
OLFH047783N
OLFH047781N/OLFH047782N

H37
Low/High System Temp.Switching to hybrid mode (Plug-in hybrid)
A corresponding message is dis-
played when the temperature of the
high-voltage (hybrid) battery is too
low or high. This warning message is
to protect the battery and the hybrid
system.
Switching to Hybrid mode tolubricate engine (Plug-in hybrid)
To prevent damage of the hybrid
lubrication system when the hybrid
system has not been started for a
long time.
- When the hybrid system is ON after
5 weeks of being turned off, the
hybrid system maintenance mode
will operate.
- When the hybrid system mainte- nance mode is operated, HEV
mode will be kept on after the
hybrid system is ON and the above
message will be displayed on the
cluster. If you press the HEV switch to shift
EV mode during engine mainte-
nance mode, the above message will
appear due to priority of the hybrid
system maintenance mode.OLFH047793N/OLFH047794N
OLFP047768N

H38
Maintaining Hybrid mode to pro-tect engine (Plug-in hybrid)
The hybrid system will automatically
stop after sufficient heating. (If the
hybrid system is turned OFF without
sufficient heating, the hybrid system
maintenance mode will be operated
once more.
Energy flow
The hybrid system informs the driv-
ers its energy flow in various operat-
ing modes. While driving, the current
energy flow is specified in 11 modes.
Vehicle Stop
The vehicle is stopped.
(No energy flow)
EV Propulsion
Only the motor power is used to drive
the vehicle.
(Battery ➞Wheel)
■ Type A■ Type B
OLFH047778L/OLFH047214L
■ Type A■ Type B
OLFH047768L/OLFH047216L
OLFP047769N
D
DR
RI
IV
V I
IN
N G
G
T
T H
H E
E
H
H Y
Y B
BR
RI
ID
D /
/P
P L
LU
U G
G-
-I
IN
N
H
H Y
Y B
BR
RI
ID
D
V
V E
EH
H I
IC
C L
LE
E
(
( C
C O
O N
NT
T.
.)
)

H39
Power Assist
Both the motor and the engine power
are used to drive the vehicle.
(Battery & Energy ➞Wheel)
Engine Only Propulsion
Only the engine power is used to
drive the vehicle.
(Engine ➞Wheel)
Engine Generation
When the vehicle is stopped, the
high-voltage battery is charged up by
the engine.
(Engine ➞Battery)
■ Type A■ Type B
OLFH047769L/OLFH047218L
■ Type A■ Type B
OLFH047770L/OLFH047220L
■ Type A■ Type B
OLFH047771L/OLFH047222L