ECO mode HYUNDAI SONATA 2023 Service Manual

While Driving
6-18
Good Driving Practices
• Never shift the gear from P (Park) or
N (Neutral) to any other position with
the accelerator pedal depressed.
• Never shift the gear into P (Park) when
the vehicle is in motion.
Be sure the vehicle is completely
stopped before you attempt to shift
into R (Reverse) or D (Drive).
• Do not shift the gear to N (Neutral)
when driving. Doing so may result
in an accident because of a loss of
engine braking and the transmission could be damaged.
• While driving up or downhill, check
the gear position, indicated on the
cluster, to ensure the vehicle is
driving forward while in D (Drive), or
backward while in R (Reverse). If you
drive in the opposite direction of the
selected gear, the engine will turn off
and a serious accident may occur due
to the degraded brake performance.
• Do not drive with your foot resting
on the brake pedal. Even light, but
consistent pedal pressure can result
in the brakes overheating, brake wear
and possibly even brake failure.
• When driving in the manual shift
mode, slow down before shifting to a
lower gear. Otherwise, the lower gear
may not be engaged if the engine
rpms are outside of the allowable
range.
• Always apply the parking brake when
leaving the vehicle. Do not depend on
placing the transmission in P (Park) to
keep the vehicle from moving.
• Exercise extreme caution when
driving on a slippery surface. Be
especially careful when braking,
accelerating or shifting gears. On a
slippery surface, an abrupt change
in vehicle speed can cause the drive
wheels to lose traction and may cause
loss of vehicle control resulting in an
accident •
Optimum vehicle performance and
economy is obtained by smoothly
depressing and releasing the
accelerator.
WARNING
To reduce the risk of SERIOUS INJURY
or DEATH: • ALWAYS wear your seatbelt. In a
collision, an unbelted occupant
is significantly more likely to be
seriously injured or killed than a
properly belted occupant.
• Avoid high speeds when cornering or turning.
• Do not make quick steering wheel
movements, such as sharp lane
changes or fast, sharp turns.
• The risk of rollover is greatly
increased if you lose control of your
vehicle at highway speeds.
• Loss of control often occurs if two or
more wheels drop off the roadway
and the driver over steers to reenter
the roadway.
• In the event your vehicle leaves
the roadway, do not steer sharply.
Instead, slow down before pulling
back into the travel lanes.
• HYUNDAI recommends you follow all
posted speed limits.
Information
Kickdown Mechanism (if equipped)
If you depress the accelerator pedal equipped with Kickdown device beyond
the pressure point, it maximizes the engine
power. You may feel when the Kickdown
equipment starts to work and hear the sound of Kickdown operation. It is normal
operation, not a failure.

06
6-19
Paddle Shifter
(Manual Shift Mode) (if equipped)
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The paddle shifter is available when the
gear is in the D (Drive) position.
Pull the [+] or [-] paddle shifter once to
shift up or down one gear and the system
changes from automatic shift mode to manual shift mode.
To change back to the automatic shift
mode from manual shift mode, do one of
the following: • Gently depress the accelerator pedal
for more than 5 seconds.
• Drive the vehicle under 10 km/h (6
mph).
• Pull and hold the right side paddle
shifter.
Information
If the [+] and [-] paddle shifters are pulled
at the same time, gear shift may not occur.

While Driving
6-26
D (Drive)
This is the normal driving position. The
transmission will automatically shift
through a 8-gear sequence, providing
the best fuel economy and power.
To start the vehicle forward, push the D
(Drive) button by depressing the brake
pedal with the engine ON. Then depress
the accelerator pedal smoothly. For extra
power when passing another vehicle or
driving uphill, depress the accelerator
fully. The transmission will automatically
downshift to the next lower gear (or
gears, as appropriate). When the vehicle
is stopped in D (Drive) position, if you
open the driver’s door with the seat belt
unfastened, the gear is shifted to P (Park)
position automatically.
However when the vehicle moves in D
(Drive) position, if you open the driver’s
door with the seat belt unfastened,
the gear may be not shifted to P (Park)
position automatically for protecting the
dual clutch transmission.
The DRIVE MODE switch, located on
the shift lever/button console, allows
the driver to switch from NORMAL/
COMFORT mode to SPORT or ECO mode. (if equipped)
For more details, refer to “Drive Mode
Integrated Control System” later in this
chapter. Shift-lock system
For your safety, the automatic
transmission has a shift-lock system
which prevents shifting the transmission
from P (Park) or N (Neutral) to R
(Reverse) or D (Drive) 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 engine or place the ignition
switch in the ON position.
3. Depress the brake pedal and move the shift lever to R (Reverse). (shift lever
type)
Depress the brake pedal and push the
R (Reverse) button. (shift button type)
When the battery is discharged:
You cannot shift the shift lever/button,
when the battery is discharged.
In emergencies, do the following
to move the shift lever/button to N
(Neutral) on a level ground.
1. Connect the battery cables from another vehicle or from a another
battery to the jump-starting terminals
inside the engine compartment.
For more details, refer to “Jump
Starting” in chapter 8.
2. Release the parking brake with the ignition switch in the ON position.
3. Shift the gear to the N(Neutral) position refer to the “Stay in Neutral
when vehicle is Off” in this chapter.

While Driving
6-38
Using ABS
To obtain the maximum benefit from
your ABS in an emergency situation,
do not attempt to modulate your brake
pressure and do not try to pump your
brakes. Depress your brake pedal as hard as possible.
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 ABS is active.
ABS does not reduce the time or distance
it takes to stop the vehicle.
Always maintain a safe distance from the
vehicle in front of you.
ABS will not prevent a skid that results
from sudden changes in direction, such
as trying to take a corner too fast or
making a sudden lane change. Always
drive at a safe speed for the road and
weather conditions.
ABS cannot prevent a loss of stability.
Always steer moderately when braking
hard. Severe or sharp steering wheel
movement can still cause your vehicle to
veer into oncoming traffic or off the road.
On loose or uneven road surfaces,
operation of the anti-lock brake system
may result in a longer stopping distance
than for vehicles equipped with a
conventional brake system.
The ABS warning light (
) will stay on
for several seconds after the ignition
switch is in the ON position. During
that time, the ABS will go through self-
diagnosis and the light will go off if
everything is normal. If the light stays on,
you may have a problem with your ABS.
Contact an authorized HYUNDAI dealer as soon as possible.
WARNING
If the ABS warning light (
) is on and
stays on, you may have a problem with
the ABS. Your power brakes will work
normally. To reduce the risk of serious
injury or death, contact your HYUNDAI dealer as soon as possible.
CAUTION
When you drive on a road having poor
traction, such as an icy road, and apply
your brakes continuously, the ABS will
be active continuously and the ABS
warning light (
) may illuminate. Pull
your car over to a safe place and turn
the engine off.
Restart the engine. If the ABS warning
light is off, then your ABS system is normal.
Otherwise, you may have a problem
with your ABS system. Contact an
authorized HYUNDAI dealer as soon as possible.
Information
When you jump start your vehicle because
of a drained battery, the ABS warning light (
) may turn on at the same
time. This happens because of the low
battery voltage. It does not mean your ABS is malfunctioning. Have the battery
recharged before driving the vehicle.

06
6-41
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.
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.
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.

06
6-43
The Launch Control system controls the
vehicle to reduce wheel spin or slip on a
hard acceleration from a standing start.
Launch control operation and
release
Prerequisite for activation
The Launch Control gets ready to
be activated, when the following
prerequisites are satisfied. •
All doors, hood and trunk are closed.
• The driver’s seat belt is fastened.
• If the engine temperature is
overheated, cooling down it before
using the launch control.
• If the engine temperature is low,
warming up the engine.
• The vehicle is at a complete stop.
Then align the steering wheel straight.
• Release the parking brake by pressing
the EPB switch and if the AUTO HOLD
function is working, please turn off
the function by releasing the AUTO
HOLD button.
CAUTION
• The Launch Control system is
intended for use at a closed race
track and not intended for use on
public roads. It will not compensate
for driver’s who are inexperienced or
lack familiarity with the race track.
• The Launch performance may be
varied by fuel, environment, tire and
load condition.
• We recommend you use the function
after breaking in your vehicle and
constant use of Launch Control can
put enormous stress on the vehicle
resulting in premature wear of
related components. To Ready Launch Control
ODN8N050001L
1. Select SPORT+ mode using the drive mode selection Switch. (SPORT+
indicator will illuminate on the
instrument cluster LCD display.)
2. Turn off ESC by pressing the ESC OFF button for more than 3 seconds. (The
ESC OFF indicator will illuminate on
the instrument cluster.)
3. Shift to the D (Drive) position.
4. Depress the brake pedal firmly with
your left foot, and depressing the
accelerator pedal down fully with your
right foot. Then, the launch control
is ready for operation. The message
“Launch Control Ready” will appear
on the instrument cluster LCD display.
launch control(if equippeD)

06
6-47
SPORT+ mode
63257
SPORT+ mode manages the
driving dynamics by
automatically adjusting the
steering effort, the engine
and transmission control
logic for enhanced driver
performance.
• When SPORT+ mode is selected by
using the DRIVE MODE switch, the
SPORT+ indicator will illuminate.
• Whenever the engine is restarted,
the Drive Mode will revert back to
NORMAL mode. If SPORT+ mode is
desired, re-select SPORT+ mode from
the DRIVE MODE switch.
• When SPORT+ mode is activated:
- The engine rpm will tend to remain raised over a certain length of time
even after releasing the accelerator
- Upshifts are delayed when accelerating
Information
In SPORT+ mode, the fuel efficiency may
decrease. SMART mode
60$57
SMART mode selects the
proper driving mode among
NORMAL and SPORT by
judging the driver’s driving
habits (i.e. Economic or
Aggressive (Sportive)) from
the brake pedal depression
or the steering wheel
operation.
• Toggle the DRIVE MODE button to
select SMART mode. When SMART
mode is selected, the indicator
illuminates on the instrument cluster.
• SMART mode automatically controls
the vehicle driving, such as gear
shifting patterns and engine torque,
in accordance with the driver’s driving habits.
Information
When you dynamically drive the vehicle
in SMART mode by abruptly decelerating
or sharply turning the driving mode
changes to SPORT mode. However, it may
adversely affect fuel economy.

06
6-53
•
Your vehicle speed may decelerate
moderately.
• If FCA detects a vehicle in front, the
system operates when your vehicle
speed is between 10 km/h (6 mph)
and 180 km/h (112 mph). 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 10
km/h (6 mph) and 85 km/h (53
mph). 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 10 km/h (6 mph) and
75 km/h (47 mph) 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 10
km/h (6 mph) or above and under 65
km/h (40 mph). 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
6-106
•
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 cruise control system
on or off.
RES+: Resumes or increases cruise control speed.
SET-: Sets or decreases cruise control speed.
:Sets vehicle-to-vehicle distance.
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 Vehicle-to-Vehicle Distance 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.

While Driving
6-136
System malfunction
ODN8A069220
Check Highway Driving Assist (HDA) system
If there is a problem with the system, a
message will appear for a few seconds. If
the problem continues, have the vehicle
inspected by an authorized HYUNDAI
dealer.
Information
• High Driving Assist is limited in other countries.
• High Driving Assist only operates based on the speed limits of the highway but it does not work with the speed cameras.
• The time gap could occur between the navigation speed warning and system operation.
• The system is not designed to work
on highways other than mentioned as
a controlled access road. The system automatically cancels when you leave
the highway.
• If there is a problem with Highway
Driving Assist, the system cannot be activated in the infotainment system
screen.
• If your vehicle is 500 m (1640 ft.) ahead and behind of an open tollgate, the
system is automatically canceled. Also,
it is converted to Smart Cruise Control automatically with a pop-up message on the navigation. •
In the automatic speed setting mode, the vehicle automatically accelerates
or decelerates when the highway speed limit changes.
• If your vehicle speed exceeds 153 km/h
(95 mph), Highway Driving Assist
is automatically canceled. Also, it is
converted to Smart Cruise Control automatically with a pop-up message on the navigation.
• If you enter a rest area on the highway
or a IC/JC (intersection/junction) without a destination set, the system is
canceled later than when the vehicle
actually leaves the highway.