battery replacement Hyundai Sonata 2020 Owner's Manual

Convenient Features5-6
If the remote key is in close proximity to
your mobile phone, the signal could be
blocked by your mobile phone’s normal
operational signals. This is specifically
relevant when the phone is active such
as making and receiving calls, text
messaging, and/or sending/receiving
emails.
When possible, avoid placing the remote
key and your mobile phone in the same
location such as a pants or jacket pocket
in order to avoid interference between
the two devices.
Information
This device complies with Part 15 of the
FCC rules.
Operation is subject to the following three
conditions:
1. This device may not cause harmful
interference.
2. This device must accept any
interference received, including
interference that may cause undesired
operation.
3. Changes or modifications not expressly
approved by the party responsible
for compliance could void the user’s
authority to operate the device.
NOTICE
Keep the remote key away from
electromagnetic materials that block
electromagnetic waves to the key
surface.
Battery replacement
OPD046002OPD046002
If the remote key is not working properly,
try replacing the battery with a new one.
Battery Type: CR2032
To replace the battery:
1. Insert a slim tool into the slot and
gently pry open the cover.
2. Using a screw driver, remove the battery cover.
3. Remove the old battery and insert the new battery. Make sure the battery
position is correct.
4. Reinstall the battery cover and key cover in the reverse order of removal.
If you suspect your remote key might
have sustained some damage, or you feel
your remote key is not working correctly
contact an authorized HYUNDAI dealer.
Information
An inappropriately disposed
battery can be harmful to the
environment and human health.
Dispose of the battery according
to your local law(s) or regulation.

05
5-13
Battery replacement
OFE048009OFE048009
ODN8059266ODN8059266
If the Smart Key is not working properly,
try replacing the battery with a new one.
Battery Type: CR2032
To replace the battery:
1. Remove the mechanical key.
2. Use a slim tool to pry open the rear cover of the smart key.
3. Remove the old battery and insert the new battery. Make sure the battery
position is correct.
4. Reinstall the rear cover of the smart key.
If you suspect your smart key might have
sustained some damage, or you feel
your smart key is not working correctly,
contact an authorized HYUNDAI dealer.
Information
An inappropriately disposed
battery can be harmful to the
environment and human health.
Dispose of the battery according
to your local law(s) or regulation.

05
5-79
Turn signals and lane change signals
ODN8A059207ODN8A059207
To signal a turn, push down on the lever
for a left turn or up for a right turn in
position (A).
If an indicator stays on and does not flash
or if it flashes abnormally, one of the turn
signal bulbs may be burned out and will
require replacement.
One touch turn signal function
To activate the One Touch Turn Signal
function, push the turn signal le
ver up or
down to position (B) and then release it.
The lane change signals will blink 3, 5 or
7 times.
You can activate or deactivate the One
Touch Turn Signal function or choose
the number of blinks (3, 5, or 7) from the
User Settings mode in the LCD display.
Battery saver function
The purpose of this feature is to prevent
the battery from being discharged.
The system automatically turns off the
parking lamp when the driver turns the
vehicle off and opens the driver-side
door.
With this feature, the parking lamps will
turn off automatically if the driver parks
on the side of road at night.
If necessary, to keep the lamps on when
the vehicle is turned off, perform the
following:
(1) Open the driver-side door.
(2) Turn the parking lamps OFF and ON again using the headlamp switch on
the steering column.
Headlamp delay function
If the key is removed from the ignition
switch or placed in the ACC position
or the LOCK/OFF position with the
headlamps ON, the headlamps (and/
or parking lamps) remain on for about
5 minutes. However, if the driver’s door
is opened and closed, the headlamps
are turned off after 15 seconds. Also,
with the engine off if the driver’s door is
opened and closed, the headlamps (and/
or parking lamps) are turned off after 15
seconds.
The headlamps (and/or parking lamps)
can be turned off by pressing the lock
button on the remote key or smart key
twice or turning the headlamp switch to
the OFF or AUTO position.
You can activate or deactivate the
Headlamp Delay function from the User
Settings Mode in the LCD display.

05
5-105
Operating Condition
ODN8059072ODN8059072
Use Remote Smart Parking
Assist system when all the below
conditions are met
• When the parking space is a straight line
• When there is enough space to move or exit the vehicle
Non-operating Condition
In the following conditions, Remote
Smart Parking Assist system may not
operate properly or cancelled. Drive the
vehicle manually in the below conditions.
• Curved or diagonal parking space
• An obstacle such as a trash can, bicycle, motorcycle, shopping cart,
narrow pillar etc. is near
• Near a circular pillar or narrow pillar, or a pillar surrounded by objects such
as fire extinguisher, etc.
• Heavy snow, rain or wind
• Bumpy roads
• A vehicle equipped with a snow chain or spare tire
• Tire pressure lower or higher than the standard tire pressure
• Slippery or uneven road
• A vehicle loaded with longer or wider cargo compared to the vehicle or a
trailer connected to the vehicle
• The sensor is positioned incorrectly by an impact to the bumper
• Inclined roads parking
• A problem with the wheel alignment
• Vehicle leaned severely to one side
• Front or rear distance sensors are malfunction or not working properly.
(Refer to Parking Distance Warning
system in this chapter)
• Low battery level of the smart key that requires battery replacement.

While Driving6-36
Battery Sensor Deactivation
ODN8A069204ODN8A069204
[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. - There is a malfunction with the ISG
system.
- The battery is weak.
- The brake vacuum pressure 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.

Engine Compartment ........................................................................\
............ 8-3
Maintenance Services ........................................................................\
...........8-4
Owner’s Responsibility ........................................................................\
.................... 8-4
Owner Maintenance Precautions ........................................................................\
.... 8-4
Owner Maintenance ........................................................................\
.............. 8-5Owner Maintenance Schedule ........................................................................\
........ 8-5
Scheduled Maintenance Services ................................................................ 8-7Normal Maintenance Schedule (Smartstream G1.6 T-GDi) ...................................8-8
Maintenance Under Severe Usage Conditions (Smartstream G1.6 T-GDi) ......... 8-11
Severe Driving Conditions ........................................................................\
.............. 8-11
Normal Maintenance Schedule (Smartstream G2.5 GDi) ..................................... 8-12
Maintenance Under Severe Usage Conditions (Smartstream G2.5 GDi) ................8-15
Severe Driving Conditions ........................................................................\
..............8-15
Explanation of Scheduled Maintenance Items .......................................... 8-16
Engine Oil ........................................................................\
............................. 8-19
Checking the Engine Oil Level ........................................................................\
........8-19
Checking the Engine Oil and Filter ....................................................................... 8-20
Engine Coolant ........................................................................\
......................8-21Checking the Engine Coolant Level ....................................................................... 8-21
Engine Coolant ........................................................................\
................................ 8-21
Changing Engine Coolant ........................................................................\
.............. 8-23
Brake fluid ........................................................................\
............................ 8-24Checking the Brake Fluid Level ........................................................................\
..... 8-24
Washer Fluid ........................................................................\
......................... 8-25Checking the Washer Fluid Level ........................................................................\
.. 8-25
Air Cleaner ........................................................................\
............................ 8-26Filter Replacement ........................................................................\
......................... 8-26
Climate Control Air Filter ........................................................................\
..... 8-28
Filter Inspection........................................................................\
.............................. 8-28
Filter Replacement ........................................................................\
......................... 8-28
Wiper Blades ........................................................................\
........................ 8-29Blade Inspection ........................................................................\
............................ 8-29
Blade Replacement ........................................................................\
........................ 8-29
Battery ....................................................................\
.......................................8-31For Best Battery Service ........................................................................\
................ 8-32
Battery Recharging ........................................................................\
........................ 8-32
Reset Features ........................................................................\
................................ 8-33
8. Maintenance
8

Maintenance8-46

v Cartridge type

v
Blade type

v Multi fuse Normal Blown
Normal Blown
Normal Blown
OTM078035OTM078035
A vehicle’s electrical system is protected
from electrical overload damage by
fuses.
This vehicle has 2 (or 3) fuse panels, one
located in the driver’s side panel bolster,
the other in the engine compartment
near the battery.
If any of your vehicle’s lights,
accessories, or controls do not work,
check the appropriate circuit fuse. If a
fuse has blown, the element inside the
fuse will be melted or broken.
If the electrical system does not work,
first check the driver’s side fuse panel.
Before replacing a blown fuse, turn the
engine and all switches off, and then
disconnect the negative battery cable.
Always replace a blown fuse with one of
the same rating.
If the replacement fuse blows, this
indicates an electrical problem.
Avoid using the system involved and
immediately consult an authorized
HYUNDAI dealer.
WARNING
NEVER replace a fuse with anything but
another fuse of the same rating.
• A higher capacity fuse could cause
damage and possibly cause a fire.
• Do not install a wire or aluminum
foil instead of the proper fuse -
even as a temporary repair. It may
cause extensive wiring damage and
possibly a fire.
NOTICE
Do not use a screwdriver or any other
metal object to remove fuses because
it may cause a short circuit and damage
the system.
FUSES

Maintenance8-48
Engine Compartment Panel Fuse
Replacement
Blade type fuseBlade type fuse
ODN8089043ODN8089043
Cartridge type fuseCartridge type fuse
ODN8089019ODN8089019
1. Turn the engine off.
2. Turn all other switches OFF.
3. Remove the fuse panel cover by pressing the tap and pulling up.
4. Check the removed fuse; replace it if it is blown. To remove or insert the
fuse, use the fuse puller in the engine
compartment fuse panel.
5. Push in a new fuse of the same rating, and make sure it fits tightly in
the clips. If it fits loosely, consult an
authorized HYUNDAI dealer.
CAUTION
After checking the fuse box in the
engine compartment securely close
the fuse box cover inside the engine
compartment, until it clicks.
If the fuse box is not closed properly,
water may leak in side, possibly causing
a malfunction with the electrical
system.
Multi fuse (Main fuse)
ODN8H089018ODN8H089018
If the multi fuse is blown, it must be
removed as follows:
1. Turn off the engine.
2. Disconnect the negative battery cable.
3. Remove the fuse panel cover by pressing the tab and pulling it up.
4. Remove the nuts shown in the picture above.
5. Replace the fuse with a new one of the same rating.
6. Reinstall in the reverse order of removal.
Information
If the multi fuse is blown, consult an
authorized HYUNDAI dealer.

I
I-13
R
Range ..................................................................\
................................................... 4-6
Rear Cross-Traffic Collision Warning (RCCW) ................................................ 6-121
Rear Cross-Traffic Collision Avoidance Assist (RCCA) ................................... 6-121
Rear Occupant Alert (ROA) system .................................................................... 5-36
Rear seat adjustment ........................................................................\
.................... 3-10Folding the rear seat ........................................................................\
................ 3-10
Rear seat head restraints ........................................................................\
.............. 3-14
Adjusting the height up and down .................................................................. 3-14
Rear View Monitor (RVM) ........................................................................\
.......... 5-86
Recommended cold tire inflation pressures ......................................................... 8-34
Recommended lubricants and capacities ............................................................. 2-11
Refrigerant label ........................................................................\
.......................... 2-15
Remote key ........................................................................\
.................................... 5-4 Locking ................................................................\
............................................. 5-4
Unlocking ..............................................................\
............................................ 5-4
Trunk unlocking ........................................................................\
........................ 5-5
Mechanical key ........................................................................\
......................... 5-5
Battery replacement ........................................................................\
.................. 5-6
Remote Smart Parking Assist (RSPA) ............................................................... 5-104
Remote start ........................................................................\
................................. 6-12
Reverse Parking Collision-Avoidance Assist (PCA) ........................................... 5-89
Reverse Parking Distance Warning (PDW) ......................................................... 5-95
Rocking the vehicle ........................................................................\
................... 6-133
Rotation (Tire) ........................................................................\
............................. 8-36
S
Safety messages ........................................................................\
............................. 1-4
Scheduled maintenance services........................................................................\
.... 8-7
Seat belt warning light Driver’s seat ........................................................................\
............................ 3-20
Front passenger’s seat ........................................................................\
............ 3-20

IndexI-14
Seat belts ........................................................................\
...................................... 3-19 Seat belt safety precautions ........................................................................\
..... 3-19
Seat belt warning light ........................................................................\
............ 3-20
Emergency locking retractor ........................................................................\
... 3-21
Convertible locking retractor ........................................................................\
.. 3-22
Rear center seat belt ........................................................................\
................ 3-23
Pre-tensioner seat belt ........................................................................\
............. 3-24
Additional seat belt safety precautions ........................................................... 3-26
Seat belt use during pregnancy ....................................................................... 3-26
Seat belt use and children ........................................................................\
........ 3-26
Transporting an injured person ....................................................................... 3-27
One person per belt ........................................................................\
................. 3-27
Do not lie down ........................................................................\
....................... 3-27
Care of seat belts ........................................................................\
..................... 3-28
Periodic inspection ........................................................................\
.................. 3-28
Keep belts clean and dry ........................................................................\
......... 3-28
When to replace seat belts ........................................................................\
....... 3-28
Seat warmers and air ventilation seats ................................................................. 3-14
Front seat warmers ........................................................................\
.................. 3-15
Front air ventilation seat..............................................\
.................................... 3-17
Seatback pocket ........................................................................\
............................. 3-9
Seats ..................................................................\
..................................................... 3-3
Safety precautions ........................................................................\
..................... 3-4
Front seat adjustment ........................................................................\
................ 3-5
Rear seat adjustment ........................................................................\
............... 3-10
Head restraints ........................................................................\
......................... 3-11
Front seat warmers ........................................................................\
.................. 3-14
Side air bags ........................................................................\
................................. 3-40
Side view mirrors ........................................................................\
......................... 5-53
Smart Cruise Control (SCC) ........................................................................\
........ 6-88
Smart key ........................................................................\
....................................... 5-7 Locking ................................................................\
............................................. 5-7
Unlocking ..............................................................\
............................................ 5-9
Trunk opening ........................................................................\
......................... 5-10
Mechanical key ........................................................................\
....................... 5-12
Battery replacement ........................................................................\
................ 5-13