2019 Hyundai Sonata stop start

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Convenient features of your vehicle
3
Do not operate the engine within
the tachometer's RED ZONE. This
may cause severe engine damage.
Engine Coolant TemperatureGauge
This gauge indicates the tempera-
ture of the engine coolant when the
ignition switch or Engine Start/Stop
button is ON. If the gauge pointer moves
beyond the normal range area
toward the "H" position, it indi-
cates overheating that may dam-
age the engine.
Do not continue driving with an
overheated engine. If your vehicle
overheats, refer to "If the Engine
Overheats" in chapter 6.
NOTICENOTICE
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■
Type A, B
■ Type C, D
Never remove the radiator cap
when the engine is hot. The
engine coolant is under pres-
sure and could severely burn.
Wait until the engine is cool
before adding coolant to the
reservoir.
WARNING

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Warning messages
(if equipped)
Shift to P(for smart key system and auto-matic transaxle)
This warning message illuminates
if you try to turn off the engine with-
out the shift lever in P (Park) posi-
tion.
At this time, the Engine Start/Stop button turns to the ACC position (If
you press the Engine Start/Stop
button once more, it will turn to the
ON position).
Low Key Battery (for smart key system)
This warning message illuminates
if the battery of the smart key is
discharged when the Engine
Start/Stop button changes to the
OFF position.
Press START button while turning wheel (for smart key system)
This warning message illuminates
if the steering wheel does not
unlock normally when the Engine
Start/Stop button is pressed.
It means that you should press the Engine Start/Stop button while
turning the steering wheel right
and left.
Steering wheel not locked (for smart key system)
This warning message illuminates
if the steering wheel does not lock
when the Engine Start/Stop button
changes to the OFF position.
Check steering wheel lock system (for smart key system)
This warning message illuminates
if the steering wheel does not lock
normally when the Engine Start/
Stop button changes to the OFF
position.
Press brake pedal to startengine (for smart key systemand automatic transaxle)
This warning message illuminates
if the Engine Start/Stop button
changes to the ACC position twice
by pressing the button repeatedly
without depressing the brake
pedal.
It means that you should depress the brake pedal to start the engine.
Key not in vehicle(for smart key system)
This warning message illuminates
if the smart key is not in the vehicle
when you press the Engine Start/
Stop button.
It means that you always have the smart key with you.
Key not detected (for smart key system)
This warning message illuminates
if the smart key is not detected
when you press the Engine Start/
Stop button.
Convenient features of your vehicle

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Convenient features of your vehicle
Press START button again (for smart key system)
This warning message illuminates
if you can not operate the Engine
Start/Stop button when there is a
problem with the Engine Start/Stop
button system.
It means that you could start the engine by pressing the Engine
Start/Stop button once more.
If the warning illuminates each time you press the Engine Start/
Stop button, we recommend that
you have the vehicle inspected by
an authorized HYUNDAI dealer.
Press START button with key(for smart key system)
This warning message illuminates
if you press the Engine Start/Stop
button while the warning message
"Key not detected" is illuminating.
At this time, the immobilizer indica- tor light blinks.
Check BRAKE SWITCH fuse (for smart key system and auto-matic transaxle)
This warning message illuminates
if the brake switch fuse is discon-
nected.
It means that you should replace the fuse with a new one. If that is
not possible, you can start the
engine by pressing the Engine
Start/Stop button for 10 seconds in
the ACC position.
Shift to P or N to start engine(for smart key system and auto-matic transaxle)
This warning message illuminates
if you try to start the engine with
the shift lever not in the P (Park) or
N (Neutral) position.
Information
You can start the engine with the shift
lever in the N (Neutral) position. But,
for your safety, we recommend that
you start the engine with the shift
lever in the P (Park) position.
Door, Hood, Trunk Open
It means that any door, hood, or
trunk is open.
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Before driving the vehicle, you
should confirm that the door/
hood/trunk is fully closed.
Also, check there is no door/
hood/trunk open warning light
or message displayed on the
instrument cluster.
CAUTION

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Convenient features of your vehicle
Automatic reset
To automatically reset the average
fuel economy after refueling, select
the "Auto Reset" mode in User
Settings menu on the LCD display.
- After Ignition: The average fueleconomy will reset automatically
whenever it has passed 4 hours
after turning OFF the engine.
- After Refueling: The average fuel economy will reset automatically
when driving speed exceeds 0.6
MPH, after adding 1.6 gallons (6
liters) of fuel or more.
Information
The average fuel economy may be
inaccurate, when the vehicle drives
shorter than 0.19 miles (300 meters)
after turning ON the Engine Start/
Stop button.
Instant Fuel Economy (3)
This mode displays the instant fueleconomy during the last few sec-
onds when the vehicle speed is
more than 6.2 MPH (10 km/h).
Accumulated Info display
This display shows the accumulated
trip distance (1), the average fuel
economy (2), and the total driving
time (3).
The information is calculated starting
from the last reset.
To manually reset the information,
press and hold the OK button when
viewing the Accumulated driving info.
The trip distance, the average fuel
economy, and total driving time will
reset simultaneously. The accumulated driving information
will continue to be counted while the
engine is still running (for example,
when the vehicle is in traffic or
stopped at a stop light.)
Information
The vehicle must be driven for a min-
imum of 0.19 miles (300 meters) since
the last ignition key cycle before the
average fuel economy will be recalcu-
lated.
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Convenient features of your vehicle
Warning LightsInformation
Make sure that all warning lights are
OFF after starting the engine. If any
light is still ON, this indicates a situa-
tion that needs attention.
Supplemental RestraintSystem Warning Light
This warning light illuminates:
Once you set the ignition switch or
the Engine Start/Stop button to the
ON position.
- It illuminates for approximately 6seconds and then goes off.
When there is a malfunction with the SRS.
In this case, have your vehicle
inspected by an authorized
HYUNDAI dealer.
Seat Belt Warning Light
This warning light informs the driver
that the seat belt is not fastened.
For more information, refer to the
"Seat Belts" in chapter 2.
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Convenient features of your vehicle
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Parking Brake & BrakeFluid Warning Light
This warning light illuminates:
Once you set the ignition switch or
the Engine Start/Stop button to the
ON position.
- It illuminates for approximately 3seconds.
- It remains on if the parking brake is applied.
When the parking brake is applied.
When the brake fluid level in the reservoir is low.
- If the warning light illuminateswith the parking brake released, it
indicates the brake fluid level in
reservoir is low.
If the brake fluid level in the reser-
voir is low:
1. Drive carefully to the nearest safe location and stop your vehicle.
2. With the engine stopped, check the brake fluid level immediately and
add fluid as required (For more
information, refer to "Brake
Fluid" in chapter 7) . Then check all
brake components for fluid leaks. If
any leak on the brake system is still
found, the warning light remains on,
or the brakes do not operate prop-
erly, do not drive the vehicle. In this
case, have your vehicle inspected
by an authorized HYUNDAI dealer.
Dual-diagonal braking system
Your vehicle is equipped with dual-
diagonal braking systems. This
means you still have braking on two
wheels even if one of the dual sys-
tems should fail.
With only one of the dual systems
working, more than normal pedal
travel and greater pedal pressure are
required to stop the vehicle.
Also, the vehicle will not stop in as
short a distance with only a portion
of the brake system working.
If the brakes fail while you are driv-
ing, shift to a lower gear for addition-
al engine braking and stop the vehi-
cle as soon as it is safe to do so.

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Convenient features of your vehicle
Anti-lock Brake System(ABS) Warning Light
This warning light illuminates:
Once you set the ignition switch or
the Engine Start/Stop button to the
ON position.
- It illuminates for approximately 3seconds and then goes off.
When there is a malfunction with the ABS (The normal braking sys-
tem will still be operational without
the assistance of the anti-lock
brake system).
In this case, have your vehicle
inspected by an authorized
HYUNDAI dealer.
Electronic Brake forceDistribution (EBD)System Warning Light
These two warning lights illuminate
at the same time while driving:
When the ABS and regular brake
system may not work normally.
In this case, have your vehicle
inspected by an authorized HYUNDAI
dealer.
Parking Brake & Brake Fluid
Warning Light
Driving the vehicle with a warn-
ing light ON is dangerous. If the
Parking Brake & Brake Fluid
Warning Light illuminates with
the parking brake released, it
indicates that the brake fluid
level is low.
In this case, have your vehicle
inspected by an authorized
HYUNDAI dealer.
WARNING

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Convenient features of your vehicle
3
Information - Electronic
Brake force Distribution (EBD)
System Warning Light
When the ABS Warning Light is on or
both ABS and Parking Brake & Brake
Fluid Warning Lights are on, the
speedometer, odometer, or tripmeter
may not work. Also, the EPS Warning
Light may illuminate and the steering
effort may increase or decrease.
In this case, have your vehicle inspect-
ed by an authorized HYUNDAI dealer.Electric Power Steering (EPS)Warning Light (if equipped)
This warning light illuminates:
Once you set the ignition switch or
the Engine Start/Stop button to the
ON position.
- It remains on until the engine isstarted.
When there is a malfunction with the EPS.
In this case, have your vehicle
inspected by an authorized
HYUNDAI dealer.
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Electronic Brake force
Distribution (EBD) System
Warning Light
When both ABS and Parking
Brake & Brake Fluid Warning
Lights are on, the brake system
will not work normally and you
may experience an unexpected
and dangerous situation during
sudden braking.
In this case, avoid high speed
driving and abrupt braking.
In this case, have your vehicle
inspected by an authorized
HYUNDAI dealer.
WARNING