2018 Hyundai Sonata Plug-in Hybrid stop start

5-6
Driving your vehicle
Illuminated Engine Start/Stop
button
Whenever the front door is opened,
the Engine Start/Stop button will illu-
minate and will go off 30 seconds
after the door is closed.
OLFH057007
To turn the hybrid system off in
an emergency:
Press and hold the Engine
Start/Stop button for more than
two seconds OR rapidly press
and release the Engine Start/
Stop button three times (within
three seconds).
If the vehicle is still moving, you
can restart the hybrid system
without depressing the brake
pedal by pressing the Engine
Start/Stop button with the shift
lever in the N (Neutral) position.
WARNING
NEVER press the Engine
Start/Stop button while the
vehicle is in motion except in
an emergency. This will result
in the hybrid system turning
off and loss of power assist
for the steering and brake
systems. This may lead to
loss of directional control and
braking function, which could
cause an accident.
Before leaving the driver’s
seat, always make sure the
shift lever is in the P (Park)
position, set the parking brake,
press the Engine Start/Stop
button to the OFF position, and
take the Smart Key with you.
Unexpected vehicle movement
may occur if these precautions
are not followed.
WARNING

5-7
Driving your vehicle
5
Engine Stop/Start button positions
Button PositionAction Notice
OFF
To turn off the hybrid system, press the
Engine Start/Stop button with 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 position.
ACC Press the Engine Start/Stop button when
the button is in the OFF position without
depressing the brake pedal.
Electrical accessories are usable. If you leave the Engine Start/Stop button in
the ACC position for more than one hour, the
battery power will turn off automatically to
prevent the battery from discharging.

5-8
Driving your vehicleButton Position Action Notice
ON Press the Engine Start/Stop button while it
is in the ACC position without depressing
the brake pedal.
The warning lights can be checked before
the hybrid system is started. Do not leave the Engine Start/Stop button in
the ON position when the hybrid system is
not running to prevent the battery from dis-
charging.
START
To start the hybrid system, depress the
brake pedal and press the Engine
Start/Stop button with the shift lever in the P
(Park) position. If you press the Engine Start/Stop button
without depressing the brake pedal, the
hybrid system does not start and the Engine
Start/Stop button changes as follows:
OFF
→ →
ACC →
→
ON →
→
OFF or ACC

5-9
Driving your vehicle
5
Starting the hybrid system Information
• The hybrid system will start by
pressing the Engine Start/Stop but-
ton, only when the smart key is in
the vehicle.
• Even when the smart key is in the vehicle, and when it is far away
from the driver, the hybrid system
may not start.
• When the Engine Start/Stop button is in the ACC or ON position, if any
door is open, the system checks for
the smart key. If the smart key is not
in the vehicle, the " " indicator
will blink and the warning "Key not
in vehicle" will come on. If all doors
are closed, the chime will also sound
for about 5 seconds. Keep the smart
key in the vehicle when in the ACC
position or if the hybrid system is
ON. 1. Always carry the smart key with
you.
2. Make sure the parking brake is applied.
3. Make sure the shift lever is in P (Park).
4. Depress the brake pedal.
5 Press the Engine Start/Stop but- ton. If the hybrid system starts, the
" " indicator will come on.
i
Always wear appropriate shoes
when operating your vehicle.
Unsuitable shoes, such as high
heels, ski boots, sandals, flip-
flops, etc., may interfere with
your ability to use the brake
and accelerator pedals.
Do not start the vehicle with the
accelerator pedal depressed.
The vehicle can move and lead
to an accident.
WARNING

5-10
Driving your vehicle
Information
• Do not wait for the engine to warmup while the vehicle remains station-
ary.
Start driving at moderate engine
speeds. (Steep accelerating and
decelerating should be avoided.)
• Always start the vehicle with your foot on the brake pedal. Do not
depress the accelerator while start-
ing the vehicle. Do not race the
engine while warming it up.
• If ambient temperature is low, the " " indicator may remain illumi-
nated longer than the normal amount
of time. To prevent damage to the vehicle:
If the " " indicator turns off
while you are in motion, do not
attempt to move the shift lever
to the P (Park) position.
If traffic and road conditions
permit, you may put the shift
lever in the N (Neutral) position
while the vehicle is still moving
and press the Engine Start/Stop
button in an attempt to restart
the hybrid system.
Do not push or tow your vehicle to start the hybrid system. To prevent damage to the vehicle:
Do not press the Engine Start/Stop
button for more than 10 seconds
except when the stop lamp fuse is
blown.
When the stop lamp fuse is blown,
you cannot normally start the
hybrid system. Replace the fuse
with a new one. If you are not able
to replace the fuse, you can start
the hybrid system by pressing
and holding the Engine Start/Stop
button for 10 seconds with the
Engine Start/Stop button in the
ACC position.
For your safety always depress
the brake pedal before starting the
hybrid system.
NOTICENOTICEi

5-11
Driving your vehicle
5
Information
If the smart key battery is weak or the
smart key does not work correctly,
you can start the hybrid system by
pressing the Engine Start/Stop button
with the smart key in the direction of
the picture above.
i
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5-13
Driving your vehicle
5
The indicator in the instrument clus-
ter displays the shift lever position
when the Engine Start/Stop button is
in the ON position.
P (Park)
Always come to a complete stop
before shifting into P (Park).
To shift from P (Park), you must
depress firmly on the brake pedal
and make sure your foot is off the
accelerator pedal.
If you have done all of the above
and still cannot shift the lever out of
P (Park), see "Shift-Lock Release"
in this chapter.
The shift lever must be in P (Park)
before turning the hybrid system off.
To reduce the risk of serious
injury or death:
ALWAYS check the surround-
ing areas near your vehicle for
people, especially children,
before shifting a vehicle into
D (Drive) or R (Reverse).
Before leaving the driver's
seat, always make sure the
shift lever is in the P (Park)
position, then set the parking
brake, and place the Engine
Start/Stop button in the OFF
position. Unexpected and
sudden vehicle movement
can occur if these precautions
are not followed.
Do not use the engine brake
(shifting from a high gear to
lower gear) rapidly on slip-
pery roads. The vehicle may
slip causing an accident.
When using Manual Shift
Mode: Do not shift from a high
gear to lower gear rapidly on
slippery roads. The vehicle
may slip causing an accident.
WARNING
Shifting into P (Park) while the
vehicle is in motion may
cause you to lose control of
the vehicle.
After the vehicle has stopped,
always make sure the shift
lever is in P (Park), apply the
parking brake, and turn the
hybrid system off.
Do not use the P (Park) posi-
tion in place of the parking
brake.
WARNING

5-16
Driving your vehicle
Shift-lock system
For your safety, the automatic trans-
mission has a shift-lock system
which prevents shifting the transmis-
sion from P (Park) into R (Reverse)
unless the brake pedal is depressed.
To shift the transmission from P
(Park) into R (Reverse):
1. Depress and hold the brake pedal.
2. Start the hybrid system or placethe Engine Start/Stop button in the
ON position.
3. Move the shift lever.
Shift-lock release
If the shift lever cannot be moved
from the P (Park) position into R
(Reverse) position with the brake
pedal depressed, continue depress-
ing the brake, and then do the follow-
ing: 1. Place the Engine Start/Stop but-
ton in the OFF position.
2. Apply the parking brake.
3. Carefully remove the cap (1) cov- ering the shift-lock access hole.
4. Insert a tool (e.g. flathead screw- driver) into the access hole and
press down on the tool.
5. Move the shift lever while holding down the screwdriver.
6. Remove the tool from the shiftlock override access hole then install
the cap. If you need to use the shift-lock
release, have the system inspected
by an authorized HYUNDAI dealer
immediately.
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