2021 HYUNDAI SONATA LIMITED check engine

6-36
Battery Sensor Deactivation
ODN8A069204
[A] : Battery sensor
The battery sensor is deactivated, when
the battery is disconnected from the
negative pole for maintenance purpose.
In this case, the ISG system is limitedly
operated due to the battery sensor
deactivation. Thus, the driver needs
to take the following procedures to
reactivate the battery sensor after
disconnecting the battery.
Prerequisites to reactivate the
battery sensor
Switch "ON" and "OFF" the ignition one
time. Park the vehicle for a minimum of 4
hours with the hood and all doors closed.
Pay extreme caution not to connect any
accessories (i.e. navigation and black
box) to the vehicle with the engine in the
OFF status. If not, the battery sensor may
not be reactivated.
Information
The ISG system may not operate in the
following situations.
-Ther

e is a malfunction with the ISG
system.
- The battery is weak.
-The brake vacuum pr

essure is low.
If this occurs, have the ISG system
checked by an authorized HYUNDAI
dealer.
NOTICE
• Use only a genuine HYUNDAI
Absorbent Glass Mat (AGM) battery
for replacement. If not, the ISG
system may not operate normally.
• Do not recharge the Absorbent Glass
Mat (AGM) battery with a general
battery charger. It may damage or
explode the Absorbent Glass Mat
(AGM) battery.
• Do not remove the battery cap. The
battery electrolyte, which is harmful
to the human body, may leak out.
While Driving

6-64
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.
While Driving

06
6-83
WARNING
Take the following precautions when
using Safe Exit Assist:
• For your safety, change the Settings
after parking the vehicle at a safe
location.
• If any other function’s warning
message is displayed or audible
warning is generated, Safe Exit
Assist warning message may not be
displayed and audible warning may
not be generated.
• You may not hear the warning sound
of Safe Exit Assist if the surrounding
is noisy.
• Safe Exit Assist does not operate in
all situations or cannot prevent all
collisions.
• Safe Exit Assist may warn the driver
late or may not warn the driver
depending on the road and driving
conditions. Always check vehicle
surroundings.
• The driver and passengers are
responsible for accidents that occurs
while exiting the vehicle. Always
check the surroundings before you
exit the vehicle.
• Never deliberately operate Safe Exit
Assist. Doing so may lead to serious
injury or death.
• Safe Exit Assist does not operate if
there is a problem with Blind-Spot
Safety system. The warning message
of Blind-Spot Safety system will
appear when:
-Blind-

Spot Safety system sensor or
the sensor surrounding is polluted
or covered
- Blind-

Spot Safety system fails to
warn passengers or falsely warn
passengers
Information
After the engine is turned off, Safe Exit
Assist operates approximately for 3
minutes, but turns off immediately if the
doors are locked.

6-84
Function malfunction and
limitations
Function malfunction
ODN8A070030When Safe Exit Assist is not working
properly, the ‘Check Blind-Spot Safety
system’ warning message will appear
on the cluster, and the system will turn
off automatically or the system will be
limited. We recommend that the system
be inspected by an authorized HYUNDAI
dealer.
Function disabled
OCN7070041L
When the rear bumper around the rear
corner radar or sensor is covered with
foreign material, such as snow or rain,
or installing a trailer or carrier, it can
reduce the detecting performance and
temporarily limit or disable Safe Exit
Assist.
If this occurs, the ‘Blind-Spot Safety
function disabled. Radar blocked’
warning message will appear on the
cluster.
The function will operate normally
when such foreign material or trailer,
etc. is removed, and then the engine is
restarted.
If the function does not operate normally
after it is removed, we recommend
that the system be inspected by an
authorized HYUNDAI dealer.
While Driving

6-94
•„Left
ODN8A059141
•„Right
ODN8A059142
Blind-Spot View Monitor system displays
the left or right side of the rear blind spot
area of your vehicle in the instrument
cluster when the left or right turn signal
is on. This function helps you when
changing lanes.
• The system is activated when the
following steps are performed.
1.

The engine is running.
2.


The turn signal is turned on. •
The s
ystem is deactivated when one
of the following is performed.
- The E
ngine Start/Stop button is in
the OFF position.
- The turn signal is turned o
ff
- The hazar

d warning flasher is on
- A w

arning screen pops up and
takes priority over Blind-Spot View
Monitor system.
WARNING
• This system is a supplemental system
only. It is the responsibility of the
driver to always check the area
around the vehicle before and while
making turns or changing lanes.
• ALWAYS look around your vehicle
to make sure there are no objects or
obstacles before moving the vehicle
in any direction to prevent a collision.
• Objects are closer than they appear.
Failure to visually confirm that view
the blind spot area is safe to change
the lane before doing so may result
in crash and serious injury or death.
• Always keep the camera lens clean.
The camera may not work normally
if the lens is covered with foreign
substance.
BlInd-Spot vIew monItor (Bvm ) ( I f equ I pped)
While Driving

6-100
• The vehicle is stopped for more than
5 minutes.
• The vehicle stops and goes repeatedly
for a long period of time.
• The accelerator pedal is continuously
depressed for a long period of time.
• The accelerator pedal is continuously
depressed for more than one minute.
• The engine performance is abnormal.
• Engine rpm is in the red zone.
• The driver starts driving by pushing
the toggle switch up (RES+)/down
(SET-) or depressing the accelerator
pedal, after the vehicle is stopped by
Smart Cruise Control system with no
other vehicle ahead.
• The driver starts driving by pushing
the toggle switch up (RES+)/down
(SET-) or depressing the accelerator
pedal, after stopping the vehicle with
a vehicle stopped far away in front.
• Forward Collision-Avoidance Assist is
activated.
• The engine speed is in dangerous
range.
• When engine is stopped by ISG (Idle
Stop & Go).
Each of these actions will cancel the
Smart Cruise Control operation. The Set
Speed and Vehicle-to-Vehicle Distance
on the LCD display will go off.
In a condition Smart Cruise Control is
cancelled automatically, Smart Cruise
Control will not resume even though the
RES+ or SET- toggle switch is pushed. Information
If Smart Cruise Control is cancelled by
other than the reasons mentioned, have
the vehicle inspected by an authorized
HYUNDAI dealer.
OIK057096L
Smart Cruise Control cancelled
If the system is cancelled, the warning
chime will sound and a message will
appear for a few seconds.
You must adjust the vehicle speed by
depressing the accelerator or brake
pedal according to the road condition
ahead and driving condition.
Always check the road conditions. Do not
rely on the warning chime.
While Driving

06
6-107
Warning message
OTM058061L
Smart Cruise Control disabled.
Radar blocked
When the sensor lens cover is blocked
with dirt, snow, or debris, Smart Cruise
Control system operation may stop
temporarily. If this occurs, a warning
message will appear on the cluster LCD
display. Remove any dirt, snow, or debris
and clean the radar sensor lens cover
before operating Smart Cruise Control
system. Smart Cruise Control system
may not properly activate, if the radar is
totally covered, or if any substance is not
detected after turning on the engine
(e.g. in an open terrain).
Information
For the SCC operation is temporarily
stopped if the radar is blocked, but you
wish to use cruise control mode (speed
control function), you must convert to the
cruise control mode (refer to "To convert
to Cruise Control mode" in the following
page.
OIK057109L
Check Smart Cruise Control System
The message will appear when the
vehicle to vehicle distance control
system is not functioning normally.
Have the vehicle inspected by an
authorized HYUNDAI dealer.

6-142
Driving in Flooded Areas
Avoid driving through flooded areas
unless you are sure the water is no
higher than the bottom of the wheel hub.
Drive through any water slowly. Allow
adequate stopping distance because
brake performance may be reduced.
After driving through water, dry the
brakes by gently applying them several
times while the vehicle is moving slowly.
Highway Driving
Tires
Adjust the tire inflation, as specified.
Under-inflation may overheat or damage
the tires.
Do not install worn-out or damaged tires,
which may reduce traction or adversely
affect vehicle handling. This could lead
to sudden tire failure that may cause
loss of vehicle control resulting in an
accident.
Information
Never over-inflate your tires above the
maximum inflation pressure, as specified
on your tires.
Fuel, engine coolant and engine oil
Driving at higher speeds on the highway
consumes more fuel and is less efficient
than driving at a slower, more moderate
speed. Maintain a moderate speed in
order to conserve fuel when driving on
the highway.
Be sure to check both the engine coolant
level and the engine oil before driving.
Drive belt
A loose or damaged drive belt may
overheat the engine.
While Driving