2020 HYUNDAI SONATA HYBRID parking brake

While Driving
6-26
Warning messages
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Parking brake automatically engaged
When the EPB is applied from Auto Hold,
a warning will sound and a message will
appear.
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AUTO HOLD turning Off!
Press brake pedal
When the conversion from Auto Hold to
EPB is not working properly a warning
will sound and a message will appear.
When this message is displayed, the Auto
Hold and EPB may not operate. For your
safety, depress the brake pedal.
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Press brake pedal to deactivate AUTO
HOLD
If you did not apply the brake pedal when
you release the Auto Hold by pressing
the [AUTO HOLD] switch, a warning will
sound and a message will appear.
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AUTO HOLD conditions not met. Close
door and hood.
When you press the [AUTO HOLD]
switch, if the driver's door and engine
hood are not closed, a warning will
sound and a message will appear on the
cluster LCD display.
Press the [AUTO HOLD] switch after
closing the driver's door and hood.

While Driving
6-30
Indicator lights
■ ESC indicator light (blinks)
■ ESC OFF indicator light (comes on)
When the ignition switch is placed to
the ON position, the ESC indicator light
illuminates, then goes off if the ESC
system is operating normally.
The ESC indicator light blinks whenever
the ESC is operating.
If ESC indicator light stays on, your
vehicle may have a malfunction with
the ESC system. When this warning light
illuminates have your vehicle checked by
an authorized HYUNDAI dealer as soon
as possible.
The ESC OFF indicator light comes on
when the ESC is turned off.
WARNING
When the ESC is blinking, this indicates
the ESC is active:
Drive slowly and NEVER attempt to
accelerate. NEVER turn the ESC off
while the ESC indicator light is blinking
or you may lose control of the vehicle
resulting in an accident.
NOTICE
Driving with wheels and tires with
different sizes may cause the ESC
system to malfunction. Before replacing
tires, make sure all four tires and wheels
are the same size. Never drive the
vehicle with different sized wheels and
tires installed.
ESC OFF usage
When Driving
The ESC OFF mode should only be used
briefly to help free the vehicle if stuck in
snow by temporarily stopping operation
of the ESC to maintain wheel torque.
To turn ESC off while driving, press the
ESC OFF button while driving on a flat
road surface.
NOTICE
To prevent damage to the transmission:
• Do not allow wheel(s) of one axle to
spin excessively while the ESC, ABS,
and parking brake warning lights
are displayed. The repairs would not
be covered by the vehicle warranty.
Reduce engine power and do not
spin the wheel(s) excessively while
these lights are displayed.
• When operating the vehicle on
a dynamometer, make sure the
ESC is turned off (ESC OFF light
illuminated).
Information
Turning the ESC off does not affect ABS
or standard brake system operation.

While Driving
6-32
Hill-Start Assist Control (HAC)
The Hill-Start Assist Control (HAC)
helps prevent the vehicle from rolling
backwards when starting a vehicle from
a stop on a hill. The system operates the
brakes automatically for approximately
2 seconds and releases the brake after 2
seconds or when the accelerator pedal is
depressed.
WARNING
Always be ready to depress the
accelerator pedal when starting off on
a incline. The HAC activates only for
approximately 2 seconds.
NOTICE
• The HAC does not operate when
the shift button is in P (Park) or N
(Neutral)
• The HAC activates even though the
ESC (Electronic Stability Control) is
off but does not activate when the
ESC has malfunctioned.
Good Braking Practices
WARNING
Whenever leaving the vehicle or
parking, always come to a complete
stop and continue to depress the brake
pedal. Move the shift button into P
(Park) position, then apply the parking
brake, and place the ignition switch in
the LOCK/OFF position.
Vehicles parked with the parking brake
not applied or not fully engaged may
roll inadvertently and may cause injury
to the driver and others. ALWAYS apply
the parking brake before exiting the
vehicle. Wet brakes can be dangerous! The
brakes may get wet if the vehicle is
driven through standing water or if it
is washed. Your vehicle will not stop as
quickly if the brakes are wet. Wet brakes
may cause the vehicle to pull to one side.
To dry the brakes, apply the brakes
lightly until the braking action returns to
normal, taking care to keep the vehicle
under control at all times. If the braking
action does not return to normal, stop
as soon as it is safe to do so and call
an authorized HYUNDAI dealer for
assistance.
DO NOT drive with your foot resting on
the brake pedal. Even light, but constant
pedal pressure can result in the brakes
overheating, brake wear, and possibly
even brake failure.
If a tire goes flat while you are driving,
apply the brakes gently and keep the
vehicle pointed straight ahead while you
slow down. When you are moving slowly
enough for it to be safe to do so, pull off
the road and stop in a safe location.
Keep your foot firmly on the brake pedal
when the vehicle is stopped to prevent
the vehicle from rolling forward.

While Driving
6-88
• Do not use Smart Cruise Control
when it may not be safe to keep the
vehicle at a constant speed:
-When driving in heavy traffic or
when traffic conditions make it
difficult to drive at a constant
speed
-When driving on rainy, icy, or
snow-covered roads
-When driving on a steep downhill
or uphill
-When driving in windy areas
-When driving in parking lots
-When driving near crash barriers
-When driving on a sharp curve
-When driving with limited view
(possibly due to bad weather, such
as fog, snow, rain or sandstorm)
-When the vehicle sensing
ability decreases due to vehicle
modification resulting level
difference of the vehicle's front
and rear
• Unexpected situations may lead to
possible accidents. Pay attention
continuously to road conditions
and driving even when smart cruise
control system is being operated.
Smart Cruise Control Switch
CRUISE/:Turns Smart Cruise Control
on or off.
RES+: Resumes or increases cruise
control speed.
SET-: Sets or decreases cruise control
speed.
:
Sets headway.
CANCEL (CNCL): Cancels cruise control
operation.
To Convert to Cruise Control
Mode
The driver may choose to only use the
conventional Cruise Control mode
(speed control function) by doing as
follows:
1. Turn Smart Cruise Control system on
(the cruise indicator light will be on
but the system will not be activated).
2. Push and hold the headway button for
more than 2 seconds.
3. Choose between “Smart Cruise
Control” and “Cruise Control”.
When the system is canceled using the
CRUISE/
button or the CRUISE button is used after the engine is turned on, the
Smart Cruise Control mode will turn on.
WARNING
When using the Cruise Control mode,
you must manually adjust the distance
to other vehicles by depressing the
brake pedal. The system does not
automatically adjust the distance to
vehicles in front of you.

06
6-91
To temporarily accelerate with
Smart Cruise Control on
If you want to speed up temporarily
when Smart Cruise Control is on, depress
the accelerator pedal. Increased speed
will not interfere with Smart Cruise
Control operation or change the set
speed.
To return to the set speed, take your foot
off the accelerator pedal.
If you push the SET- switch down
at increased speed, the set speed is
updated.
Information
Be careful when accelerating temporarily,
because the speed is not controlled
automatically at this time even if there is a
vehicle in front of you.
Smart Cruise Control will be
temporarily canceled when:
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Cancelled manually
• Depressing the brake pedal.
• Pushing the CANCEL (CNCL) button
located on the steering wheel.
Smart Cruise Control turns off
temporarily when the Set Speed and
Headway indicator on the LCD display
turns off.
The cruise indicator (
) is illuminated
continuously.
Cancelled automatically
• The driver’s door is opened.
• The vehicle is shifted to N (Neutral), R
(Reverse) or P (Park).
• The parking brake is applied.
• The vehicle speed is over 120 mph
(190 km/h).
• The ESC (Electronic Stability Control),
TCS (Traction Control System) or ABS
is operating.
• The ESC is turned off.
• The sensor or the cover is dirty or
blocked with foreign matter.
• The vehicle is stopped for a certain
period of time.

While Driving
6-128
• The vehicle height gets lower or
higher due to heavy loading in a trunk,
abnormal tire pressure, etc.
• When the temperature of the rear
bumper is high.
• When the sensors are blocked by
other vehicles, walls or parking-lot
pillars.
• The vehicle drives on a curved road.
• The road pavement (or the peripheral
ground) abnormally contains metallic
components (i.e. possibly due to
subway construction).
• There is a fixed object near the
vehicle, such as a guardrail.
• While going down or up a steep
road where the height of the lane is
different.
• Driving on a narrow road where trees
or grass or overgrown.
• Driving in rural areas where the sensor
does not detect another vehicle for an
extended period of time.
• Driving on a wet road.
• Driving on a road where the guardrail
or wall is in double structure.
• A big vehicle is near such as a bus or
truck.
• When the other vehicle approaches
very close.
• When the other vehicle passes at a
very fast speed.
• While changing lanes. •
If the vehicle has started at the same
time as the vehicle next to you and
has accelerated.
• When the vehicle in the next lane
moves two lanes away from you or
when the vehicle two lanes away
moves to the next lane from you.
• A motorcycle or bicycle is near.
• A flat trailer is near.
• If there are small objects in the
detecting area such as a shopping
cart or a baby stroller.
• If there is a low height vehicle such as
a sports car.
• The brake pedal is depressed.
• ESC (Electronic Stability Control) is
activated.
• ESC (Electronic Stability Control)
malfunctions.
• The tire pressure is low or a tire is
damaged.
• The brake is reworked.
• The vehicle sharply stops.
• Temperature is extremely low around
the vehicle.
• The vehicle severely vibrates while
driving over a bumpy road, uneven/
bumpy road, or concrete patch.
• The vehicle drives on a slippery
surface due to snow, water puddle,
or ice.
• If the vehicle moves backward after
the vehicle is parked with a diagonal
line

06
6-129
OHI058316L[A] : Structure
• Driving where there is a vehicle or
structure near
The system may not operate properly
when driving where there is a vehicle
or structure near.
In certain instances, the system may
not detect the vehicle approaching
from behind and the warning or brake
may not operate properly.
Always pay attention to your
surrounding while driving.
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• When the vehicle is in a complex
parking environment
The system may not operate properly
when the vehicle is in a complex
parking environment.
In certain instances, the system may
not be able to exactly determine the
risk of collision for the vehicles which
are parking or pulling out near your
vehicle (e.g. a vehicle escaping beside
your vehicle, a vehicle parking or
pulling out in the rear area, a vehicle
approaching your vehicle making a
turn, etc.).
In this case, the warning or brake may
not operate properly.

While Driving
6-130
OHI058318L[A] : Vehicle
• When the vehicle is parked diagonally
The system may not operate properly
when the vehicle is parked diagonally.
In certain instances, when the
diagonally parked vehicle is pulled out
of the parking space, the system may
not detect the vehicle approaching
from the rear left/right of your vehicle.
In this case, the warning or brake may
not operate properly.
Always pay attention to your
surrounding while driving.
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• When the vehicle is on/near a slope
The system may not operate properly
when the vehicle is on/near a slope.
In certain instances, the system may
not detect the vehicle approaching
from the rear left/right and the
warning or brake may not operate
properly.
Always pay attention to your
surrounding while driving.