2022 HYUNDAI SONATA HYBRID brakes

06
6-29
ESC operation
ESC ON condition
When the ignition switch is in the
ON position, the ESC and the ESC
OFF indicator lights illuminate for
approximately three seconds. After both
lights go off, the ESC is enabled.
When operating
When the ESC is in operation,
the ESC indicator light blinks:
• When you apply your brakes under
conditions which may lock the wheels,
you may hear sounds from the brakes,
or feel a corresponding sensation in
the brake pedal. This is normal and it
means your ESC is active.
• When the ESC activates, the engine
may not respond to the accelerator as
it does under routine conditions.
• If the Cruise Control was in use when
the ESC activates, the Cruise Control
automatically disengages. The Cruise
Control can be reengaged when the
road conditions allow. See "Cruise
Control System" later in this chapter.
(if equipped)
• When moving out of the mud or
driving on a slippery road, the engine
RPM (revolutions per minute) may
not increase even if you press the
accelerator pedal deeply. This is to
maintain the stability and traction of
the vehicle and does not indicate a
problem. ESC OFF condition
To cancel ESC operation:
•
State 1
Press the ESC OFF button briefly. The
ESC OFF indicator light and message
"Traction Control disabled" will
illuminate. In this state, the traction
control function of ESC (engine
management) is disabled, but the
brake control function of ESC (braking
management) still operates.
• State 2
Press and hold the ESC OFF button
continuously for more than 3 seconds.
The ESC OFF indicator light and message
"Traction and Stability Control disabled"
illuminates and a warning chime sounds.
In this state, both the traction control
function of ESC (engine management)
and the brake control function of ESC
(braking management) are disabled.
If the ignition switch is placed to the
LOCK/OFF position when ESC is off, ESC
remains off. Upon restarting the engine,
the ESC will automatically turn on again.

06
6-31
Vehicle Stability Management
(VSM)
The Vehicle Stability Management (VSM)
is a function of the Electronic Stability
Control (ESC) system. It helps ensure the
vehicle stays stable when accelerating
or braking suddenly on wet, slippery and
rough roads where traction over the four
tires can suddenly become uneven.
WARNING
Take the following precautions when
using the Vehicle Stability Management
(VSM):
• ALWAYS check the speed and the
distance to the vehicle ahead. The
VSM is not a substitute for safe
driving practices.
• Never drive too fast for the road
conditions. The VSM system will not
prevent accidents. Excessive speed
in bad weather, slippery and uneven
roads can result in severe accidents.
VSM operation
VSM ON condition
The VSM operates when:
• The Electronic Stability Control (ESC)
is on.
• Vehicle speed is approximately above
9 mph (15 km/h) on curve roads.
• Vehicle speed is approximately above
12 mph (20 km/h) when the vehicle is
braking on rough roads.
When operating
When you apply your brakes under
conditions which may activate the ESC,
you may hear sounds from the brakes,
or feel a corresponding sensation in the
brake pedal. This is normal and it means
your VSM is active.
NOTICE
The VSM does not operate when:
• Driving on a banked road such as
gradient or incline.
• Driving rearward.
• ESC OFF indicator light is on.
• EPS (Electric Power Steering)
warning light (
) is on or blinks.
VSM OFF condition
To cancel VSM operation, press the ESC
OFF button. ESC OFF indicator light (
)
will illuminate.
To turn on VSM, press the ESC OFF
button again. The ESC OFF indicator light
will go out.
WARNING
If ESC indicator light () or EPS
warning light () stays on or blinks,
your vehicle may have a malfunction
with the VSM system. When the
warning light illuminates, have your
vehicle checked by an authorized
HYUNDAI dealer as soon as possible.
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 tires and wheels
installed.

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
6-40
Prerequisite for activation
FCA gets ready to be activated, when
‘Active Assist’ or ‘Warning Only’ under
Forward Safety is selected in the cluster
LCD display, and when the following
prerequisites are satisfied.
-ESC (Electronic Stability Control) is on.
- Vehicle speed is over 6 mph (10 km/h ).
(FCA is only activated within a certain
speed range.)
- The system detects a pedestrian,
cyclist or a vehicle in front, which may
collide with your vehicle. However,
FCA may not be activated or may only
sound a warning alarm depending on
the driving or vehicle conditions.
FCA may not operate properly according
to the frontal situation, condition of the
vehicle, the direction of pedestrian or
cyclist or speed. If you select "Warning
Only", only warnings occur.
WARNING
To avoid driver distractions, do not
attempt to set or cancel FCA while
driving the vehicle. Always completely
stop the vehicle at a safe place before
setting or canceling the system.
FCA automatically activates upon
placing the ignition switch to the ON
position. The driver can deactivate FCA
by canceling the system setting on the
cluster LCD display or infotainment
system display (if equipped).
FCA automatically deactivates upon
canceling ESC (Electronic Stability
Control). When ESC is canceled, FCA
cannot be activated in the LCD display
or infotainment system display (if
equipped). In this situation, the FCA
warning light will illuminate which is
normal.
FCA Warning Message and Brake
Control
FCA produces warning messages,
warning alarms, and emergency braking
based on the level of risk of a frontal
collision, such as when a vehicle ahead
suddenly brakes, or the system detects
that a collision with a pedestrian or
cyclist is imminent.
Collision warning (First warning)
ODN8H069201L
This warning message appears on the
LCD display with a warning chime.
Additionally, some vehicle system
intervention occurs by the engine
management system to help decelerate
the vehicle.

06
6-41
• Your vehicle speed may decelerate
moderately.
• If FCA detects a vehicle in front, the
system operates when your vehicle
speed is between 6 mph (10 km/h )
and 112 mph (180 km/h). Maximum
vehicle speed may decrease
depending on the condition of the
vehicle ahead and surroundings.
• If FCA detects a pedestrian or cyclist
in front, the system operates when
your vehicle speed is between 6
mph (10 km/h ) and 53 mph (85
km/h). Maximum vehicle speed may
decrease depending on the condition
of the pedestrian or cyclist ahead and
surroundings.
• If you select ‘Warning Only’ for the
system setting, FCA system activates
and produces only warning alarms
in accordance with the collision risk
levels. You should control the brake
directly because FCA system will not
control the brake.Emergency braking (Second
warning)
ODN8H069202L
This warning message appears on the
LCD display with a warning chime.
Additionally, some vehicle system
intervention occurs by the engine
management system to help decelerate
the vehicle.
• FCA system limitedly controls the
brakes to preemptively mitigate
impact in a collision. The brake control
is maximized just before a collision.
• If FCA detects a vehicle in front, the
system operates when your vehicle
speed is above 6 mph (10 km/h ) and
47 mph (75 km/h) or under. Maximum
vehicle speed may decrease
depending on the condition of the
vehicle ahead and surroundings.
• If FCA detects a pedestrian or cyclist
in front, the system operates when
your vehicle speed is between 6 mph
(10 km/h) or above and under 40 mph
(65 km/h). Maximum vehicle speed
may decrease depending on the
condition of the pedestrian or cyclist
ahead or surroundings.
• If you select ‘Warning Only’ for the
system setting, FCA system activates
and produces only warning alarms
in accordance with the collision risk
levels. You should control the brake
directly because FCA system will not
control the brake.

While Driving
6-54
Prerequisite for activation
FCA system is on and ready if you select
“Active Assist” or “Warning Only” on
the infotainment system and when the
following prerequisites are satisfied:
-The system detects a oncoming
vehicle in front, which may collide
with your vehicle. It may be activated
when the system recognise the
collision risk at a junction in each
situation.
-The ESC (Electronic Stability Control)
is on.
-The vehicle speed moving toward
your vehicle exceeds approximately 19
mph (30 km/h) or decreases under 44
mph (70 km/h).
-Driving speed exceeds approximately
6 mph (10 km/h) or decreases under
19 mph (30 km/h)
-Direction signals turn on.
CAUTION
• FCA system may not work or only
some part of the warning system may
perform according to the condition,
driving direction or speed of the
vehicle moving toward your vehicle.
• If you select “Warning only”, FCA
system activates and produces only
warning alarms.
WARNING
• FCA system may not produce the
warning alarm or be activated too
late due to the unexpected driving
caused by the approaching vehicles.
• While turning left, only when the turn
signal is on along with the driving
direction, FCA system is activated
toward the approaching vehicles.
FCA warning message and function
control
FCA produces warning messages and
warning alarms as well as vibrates the
steering wheel in accordance with the
collision risk levels whilst the vehicle
turns left at the crossroads. In addition,
the system controls the brakes according
to the collision risk levels.
ODN8H060227N
Collision warning (First warning)
-The warning message appears on the
LCD display with a warning chime and
the steering wheel vibrates.
-The vehicle may slow down slightly.
-The system works when the vehicle
speed is under 19 mph (30 km/h).
(The operable speed range might be
reduced according to the condition
and surroundings of the approaching
vehicles.)
-If you select “Warning Only” on the
LCD display or infotainment system,
the system does not control the
brake so you should control the brake
directly.

06
6-55
ODN8H060228N
Emergency braking (Second warning)
-The warning message appears on the
LCD display with a warning chime and
the steering wheel vibrates.
-FCA system limitedly controls the
brakes to preemptively mitigate
impact in collision. The brake control
is maximised just before a collision.
-The system works when the vehicle
speed is under 19 mph (30 km/h).
(The operable speed range might be
reduced according to the condition
and surroundings of the approaching
vehicles.)
-If you select “Warning Only” on the
LCD display or infotainment system,
the system does not control the
brake so you should control the brake
directly.
WARNING
FCA-Junction Turning function
only activates for vehicles except
pedestrians, two wheel vehicles,
animals or obstacles.
WARNING
FCA braking control cannot completely
stop the vehicle nor avoid all
collisions. The driver should hold the
responsibility to safely drive and control
the vehicle.
WARNING
FCA-Junction Turning function operates
in accordance with the collision risk
levels based on certain parameters
such as the condition, driving direction
and speed of the approaching vehicle.
Never deliberately drive dangerously to
activate the system.

While Driving
6-62
Warning Light and Message
„„Type A„„Type B
OIK057121NOIK057122N
Check LKA (Lane Keep Assist) system
If there is a problem with the system a
message will appear for a few seconds.
If the problem continues LKA system
failure indicator will illuminate.
LKA system indicator
The LKA system indicator
(yellow) will illuminate if LKA
system is not working properly.
Have the vehicle inspected by an
authorized HYUNDAI dealer.
When there is a problem with the system
do one of the following:
• Turn the system on after turning the
vehicle off and on again.
• Check if the ignition switch is in the
ON position.
• Check if the system is affected by the
weather. (ex: fog, heavy rain, etc.)
• Check if there is foreign matter on the
camera lens.
If the problem is not solved, have the
vehicle inspected by an authorized
HYUNDAI dealer. LKA system will not be in the ENABLED
state and the steering wheel will not be
assisted when:
•
The turn signal is turned on before
changing a lane. If you change
lanes without the turn signal on, the
steering wheel might be controlled.
• The vehicle is not driven in the middle
of the lane when the system is turned
on or right after changing a lane.
• ESC (Electronic Stability Control) or
VSM (Vehicle Stability Management)
is activated.
• The vehicle is driven on a sharp curve.
• Vehicle speed is below 40 mph (64
km/h) and over 110 mph (177 km/h).
• The vehicle makes sharp lane
changes.
• The vehicle brakes suddenly.
• Only one lane marker is detected.
• The lane (or road width) is very wide
or narrow.
• There are more than two lane markers
on the road. (e.g. construction area)
• The vehicle is driven on a steep
incline.
• The steering wheel is turned suddenly.
• The system may not operate for 15
seconds after the engine is started or
the camera is initialized.