2023 HYUNDAI IONIQ 6 battery replacement

Convenience Features
5-10
Battery replacement
If the smart key is not working properly,
try replacing the battery with a new one.
Battery Type: CR2450
To replace the battery:
1. Put the slim tool into the key hole (1) to pry open the rear cover of the smart
key.
B5000401
2. Remove the old battery and insert the new battery. Make sure the battery
position is correct.
3. Reinstall the battery cover and smart key cover.
B5000402
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.
WARNING This product contains a button battery.
If swallowed, a lithium button battery can
cause severe or fatal injuries within 2 hours. Keep batteries out of reach of
children.
If you think batteries may have been
swallowed or placed inside any part of the
body, seek immediate medical attention.

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 regulations.

Immobilizer System
The immobilizer system helps protect
your vehicle from theft. If an improperly
coded key (or other device) is used, the
vehicle is disabled.
When the Start/Stop button is pressed to
the ON position, the immobilizer system
indicator should come on briefly, then go
off. If the indicator starts to blink, the
system does not recognize the coding of
the key.
Press the Start/Stop button to the OFF
position, then press the Start/Stop button
to the ON position again.
In some circumstances, the vehicle may
not recognize your smart key if another
smart key device is nearby or a metal
object such as a key chain is causing
interference with the smart key.
If this occurs, your vehicle may not start.
Remove any metal objects or additional
keys near the smart key before
attempting to start the vehicle again.
1
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5-69
Turn signals and lane change signals
B5015801
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
To use One Touch Turn Signal push the
turn signal lever up or down to position
(B) and then release it.
The lane change signals will blink 3, 5 or 7
times.
You can enable the One Touch Turn
Signal function or choose the number of
blinking by selecting Setup > Vehicle >
Lights > One Touch Turn Signal (or
One-touch indicator ) > 3 flashes /5
flashes /7 flashes /Off in the infotainment
system.
Information The infotainment system may change after
software updates. For more information, refer
to the user's manual provided in the
infotainment system and the quick reference
guide.

Battery saver function
To prevent the battery from being
discharging, the system automatically
turns off the parking lights when the
driver turns the vehicle off and opens the
driver’s door.
To keep the lights on when the vehicle is
turned off:
1. Open the driver’s door.
2. Turn the parking lights OFF and ON again using the headlight switch.
Headlight delay function
If the Start/Stop button is in the ACC
position or the OFF position with the
headlights ON, the headlights (and/or
Parking lights) remain on for about 5
minutes. However, if the driver’s door is
opened and closed, the headlights are
turned off after 15 seconds. Also, with the
vehicle off if the driver’s door is opened
and closed, the headlights (and/or
Parking lights) are turned off after 15
seconds.
The headlights (and/or Parking lights) can
be turned off by pressing the lock button
on the smart key twice or turning the
headlight switch to the OFF or AUTO
position.
You can enable the headlight delay
function by selecting Setup > Vehicle >
Lights > Headlight Delay (or Headlight
time-out) in the infotainment system.
Information The infotainment system may change after
software updates. For more information, refer
to the user's manual provided in the
infotainment system and the quick reference
guide.

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6
6-47
“Tire Replacement” section in Chapter
9.
• Turn on your headlights to make it easier for others to see you. Using your
headlights when using your windshield
wipers is required in some jurisdictions.
• Driving too fast through large puddles may affect your brakes. If you must go
through puddles, try to drive through
them slowly.
• If you believe your brakes are wet, apply them several times while the
vehicle is moving slowly.
Hydroplaning
If the road is wet enough and you are
going fast enough, your vehicle may have
little or no contact with the road surface
and actually ride on the water. The best
advice is SLOW DOWN when the road is
wet.
The risk of hydroplaning increases as the
depth of tire tread decreases, For more
information, refer to the “Tire
Replacement” section in chapter 9.
Driving in Flooded Areas
Avoid driving through flooded areas
unless you are sure the water is not
deeper than the bottom of the wheel hub.
If you are not sure, turn around and find a
different route. Drive through any water
slowly. Allow adequate stopping distance
because the brake performance can 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 pressure, as
specified. Under-inflation may overheat
or damage the tires.
Do not install worn-out or damaged tires,
which may reduce traction or fail.
Information Never over-inflate your tires above the
maximum inflation pressure, as specified on
your tires.

Coolant and high voltage battery
Driving at higher speeds on the highway
consumes more electric energy and is
less efficient than driving at a slower,
more moderate speed. Maintain a
moderate speed in order to conserve
electric energy when driving on the
highway.
Be sure to check both the coolant level
and the electric energy level before
driving.
Hyundai_CE_en_US.book Page 47

9
9. Maintenance
Motor Compartment ....................................................................................................... 9-4
Maintenance Services ..................................................................................................... 9-5Owner’s Responsibility ................................................................................................ 9-5
Owner Maintenance Precautions ............................................................................... 9-5
Owner Maintenance ........................................................................................................9-6 Owner Maintenance Schedule....................................................................................9-6
Scheduled Maintenance Services .................................................................................. 9-7 Normal Maintenance Schedule ..................................................................................9-8
Normal Maintenance Schedule ..................................................................................9-9
Maintenance Under Severe Usage and Low Mileage Conditions .......................... 9-10
Explanation of Scheduled Maintenance Items............................................................. 9-11 Cooling System ........................................................................................................... 9-11
Coolant ........................................................................................................................ 9-11
Gear Fluid .................................................................................................................... 9-11
Brake Hoses and Lines................................................................................................ 9-11
Brake Fluid ................................................................................................................... 9-11
Brake Discs, Pads, Calipers and Rotors ..................................................................... 9-11
Suspension Mounting Bolts ....................................................................................... 9-11
Steering Gear Box, Linkage & Boots/Lower Arm Ball Joint ..................................... 9-11
Drive Shafts and Boots ............................................................................................... 9-11
Air Conditioning Refrigerant ...................................................................................... 9-11
Coolant ............................................................................................................................9-12 Changing Coolant ...................................................................................................... 9-13
Brake Fluid ..................................................................................................................... 9-13 Checking the Brake Fluid Level................................................................................. 9-13
Gear Fluid ....................................................................................................................... 9-13
Washer Fluid .................................................................................................................. 9-14 Checking the Washer Fluid Level ............................................................................. 9-14
Cabin Air Filter ............................................................................................................... 9-14 Filter Inspection ......................................................................................................... 9-14
Filter Replacement..................................................................................................... 9-14
Wiper Blades .................................................................................................................. 9-15 Blade Inspection ........................................................................................................ 9-15
Blade Replacement.................................................................................................... 9-15
Battery (12 V) ...................................................................................................................9-17
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9
For Best Battery Service ............................................................................................ 9-18
Battery Capacity Label ............................................................................................... 9-19
Battery Recharging .................................................................................................... 9-19
Reset Items ................................................................................................................ 9-20
Tires and Wheels ........................................................................................................... 9-20 Tire Care ...................................................................................................................... 9-21
Recommended Cold Tire Inflation Pressures........................................................... 9-21
Check Tire Inflation Pressure.....................................................................................9-22
Tire Rotation ...............................................................................................................9-22
Wheel Alignment and Tire Balance .......................................................................... 9-23
Tire Replacement ...................................................................................................... 9-23
Wheel Replacement .................................................................................................. 9-24
Tire Traction ............................................................................................................... 9-24
Tire Maintenance....................................................................................................... 9-24
Tire Sidewall Labeling ............................................................................................... 9-24
Tire Terminology and Definitions .............................................................................. 9-27
All Season Tires .......................................................................................................... 9-30
Summer Tires ............................................................................................................. 9-30
Snow Tires .................................................................................................................. 9-30
Radial-Ply Tires .......................................................................................................... 9-30
Low Aspect Ratio Tires ............................................................................................... 9-31
Fuses .............................................................................................................................. 9-32
Blade type...................................................................................................................... 9-32
Cartridge type ............................................................................................................... 9-32
Multi type....................................................................................................................... 9-32 Instrument Panel Fuse Replacement....................................................................... 9-33
Motor compartment.................................................................................................. 9-33
Motor Compartment Panel Fuse Replacement ...................................................... 9-33
Fuse/Relay Panel Description .................................................................................. 9-35
Light Bulbs ..................................................................................................................... 9-43 Headlight, Parking Light, Turn Signal Light, Daytime Running Light (DRL)
Replacement.............................................................................................................. 9-44
Side Repeater Light Replacement ........................................................................... 9-44Rear Combination Light Replacement .................................................................... 9-44
High Mounted Stop Light Replacement .................................................................. 9-45
License Plate Light Replacement ............................................................................. 9-45
Front Trunk Light Replacement ............................................................................... 9-45
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Maintenance
9-32
Fuses
Blade type
B9005601Cartridge type
B9005602Multi type
B9005603
A vehicle’s electrical system is protected
from electrical overload damage by fuses.
This vehicle has 5 fuse panels, one
located in the driver’s side panel bolster,
the other in the vehicle compartment.
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
vehicle 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. Consult an
authorized HYUNDAI dealer.
WARNING NEVER replace a fuse with anything but
another fuse of the same rating.
• A higher capacity fuse may 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.

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PHWDOREMHFWWRUHPRYHIXVHVEHFDXVHLW
PD\FDXVHDVKRUWFLUFXLWDQGGDPDJHWKH
V\VWHP

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I
I-7
Intelligent Speed Limit Assist Operation ................................................................................ 7-50
Intelligent Speed Limit Assist Settings .................................................................................... 7-49
Interior Features ....................................................................................................................... 5-101
Clock ........................................................................................................................................ 5-106
Coat Hook ............................................................................................................................... 5-106
Cup Holder ............................................................................................................................... 5-101
Floor Mat Anchor(s) ................................................................................................................ 5-106
Power Outlet ............................................................................................................................ 5-102
Sunvisor .................................................................................................................................... 5-101
USB Charger .............................................................................................................................5-103
Vehicle to Load (V2L) ...............................................................................................................5-105
Wireless Smartphone Charging System ............................................................................... 5-104
Interior Lights ............................................................................................................................. 5-71
Front Lamps ............................................................................................................................... 5-71
Front Trunk Lamp ..................................................................................................................... 5-73
Glove Box Lamp .........................................................................................................................5-72
Interior Light AUTO cut ............................................................................................................. 5-71
Mood Light .................................................................................................................................5-72
Rear lamps ................................................................................................................................. 5-71
Vanity Mirror Lamp ....................................................................................................................5-72
Interior Overview ........................................................................................................................ 2-4
J
Jump Starting (12 V battery) ...................................................................................................... 8-4
L
Lane Following Assist (LFA) ...................................................................................................... 7-82
Lane Following Assist Malfunction and Limitations ............................................................... 7-85
Lane Following Assist Operation ............................................................................................. 7-83
Lane Following Assist Settings ................................................................................................ 7-82
Lane Keeping Assist (LKA) ......................................................................................................... 7-27
Lane Keeping Assist Malfunction and Limitations .................................................................. 7-31
Lane Keeping Assist operation ................................................................................................ 7-29
Lane Keeping Assist settings ................................................................................................... 7-28
Light Bulbs .................................................................................................................................. 9-43
Front Trunk Light Replacement ............................................................................................... 9-45
Headlight, Parking Light, Turn Signal Light, Daytime Running Light (DRL) Replacement . 9-44
High Mounted Stop Light Replacement ................................................................................. 9-45
Interior Light Replacement ...................................................................................................... 9-46
License Plate Light Replacement ............................................................................................ 9-45
Rear Combination Light Replacement .................................................................................... 9-44
Side Repeater Light Replacement ........................................................................................... 9-44
Lighting ....................................................................................................................................... 5-67
Exterior Lights ........................................................................................................................... 5-67
Welcome system ...................................................................................................................... 5-70
M
Maintenance ................................................................................................................................. 9-1
Maintenance Services ................................................................................................................. 9-5
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I
I-11
Tire Replacement ..................................................................................................................... 9-23
Tire Rotation .............................................................................................................................. 9-22
Tire Sidewall Labeling ............................................................................................................... 9-24
Tire Terminology and Definitions ............................................................................................ 9-27
Tire Traction .............................................................................................................................. 9-24
Wheel Alignment and Tire Balance ......................................................................................... 9-23
Wheel Replacement ................................................................................................................. 9-24
Towing ........................................................................................................................................ 8-18
Removable Towing Hook ..........................................................................................................8-19
Towing Service .......................................................................................................................... 8-18
Trailer Towing ............................................................................................................................ 6-57
U
Understanding Your Electric Vehicle ......................................................................................... 1-9
Characteristics of Your Electric Vehicle .....................................................................................1-9 Other Precautions for Electric Vehicle Management .............................................................. 1-11
Precautions When Using the High Voltage Battery ................................................................ 1-10
Using EV Mode Functions .......................................................................................................... 1-33
Checking Energy Information ................................................................................................... 1-34
Checking the EV Mode Screen Configuration ......................................................................... 1-33
Setting a Battery Discharging Limit When Using Vehicle to Load (V2L) .............................. 1-40
Setting Electric Vehicle Specialized Functions ....................................................................... 1-41
Setting Scheduled Charging and Climate ................................................................................ 1-38
Setting the Next Departure Time ............................................................................................. 1-37
Using V2L Function .....................................................................................................................1-46
Safety Precautions When Using the V2L Function ..................................................................1-46
Solving V2L Problems .................................................................................................................1-51 Using Electricity Inside the Vehicle ..........................................................................................1-49
Using Electricity Outside the Vehicle .......................................................................................1-48
V
Vehicle Certification Label ........................................................................................................ 2-15
Vehicle Identification Number (VIN) ........................................................................................ 2-15
Vehicle Information, Consumer Information, and Reporting Safety Defects ....................... 2-1
Vehicle Load Limit ..................................................................................................................... 6-52
The Loading Information Label ................................................................................................ 6-52
Vehicle Settings (Infotainment System) ................................................................................. 4-26
Setting Your Vehicle ................................................................................................................. 4-27
Vehicle Weight and Luggage Volume ...................................................................................... 2-13
W
Washer Fluid ...............................................................................................................................9-14
Checking the Washer Fluid Level .............................................................................................9-14
Wide Sunroof ............................................................................................................................. 5-50
Windows ..................................................................................................................................... 5-46
Power Windows ........................................................................................................................ 5-47
Windshield Defrosting and Defogging ................................................................................... 5-94
Defogging Logic ....................................................................................................................... 5-95
Rear Window Defroster ............................................................................................................ 5-95
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