2023 HYUNDAI IONIQ 6 maintenance

9
9-19
• If the vehicle is not going to be used for an extended time, disconnect the
battery cables.
Battery Capacity Label
OLMB073072
Information The actual battery label in the vehicle may
differ from the illustration.

1. CMF60L-DIN(12 v): The HYUNDAI model name of battery
2. 60Ah (20 HR): The nominal capacity (in Ampere hours)
3. 550 A: The cold-test current in amperes by SAE / EN
4. RC 92 min: The nominal reserve capacity (in minutes)
Battery Recharging
By battery charger
Your vehicle has a maintenance-free,
calcium-based battery.
• If the battery becomes discharged over a short time (because, for example, the
headlights or interior lights were left on
while the vehicle was not in use),
recharge it by slow charging (trickle) for
10 hours.
• If the battery gradually discharges because of high electrical load while the vehicle is being used, recharge it at
20-30 A for two hours.
WARNING Always follow these instructions when
recharging your vehicle’s battery to avoid
the risk of SERIOUS INJURY or DEATH
from explosions or acid burns:
• Before performing maintenance or
recharging the battery, turn off all
accessories and stop the vehicle.
• Keep all flames, sparks, or smoking materials away from the battery.
• Always work outdoors or in an area with plenty of ventilation.
• Wear eye protection when checking the battery during charging.
• The battery must be removed from the vehicle and placed in a well ventilated
area.
• Watch the battery during charging, and stop or reduce the charging rate if the
battery cells begin boiling violently.
• Remove the negative battery cable first and install it last when the battery is
disconnected. Disconnect the battery
charger in the following order:
1. Turn off the battery charger main switch.
2. Unhook the negative clamp from the negative battery terminal.
3. Unhook the positive clamp from the positive battery terminal.

By jump starting
After a jump start from a good battery,
drive the vehicle for 20-30 minutes
before it is shutoff. The vehicle may not
restart if you shut it off before the battery
had a chance to adequately recharge. For
more information, refer to the
“JumpStarting” section in chapter 8 for
more information on jump starting
procedures.
Hyundai_CE_en_US.book Page 19

Maintenance
9-20
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.

Reset Items
The following items may need to be reset
after the battery has been discharged or
the battery has been disconnected:
• Drive info/After Recharging/Accumulated info (items in
View modes) (refer to chapter 4)
• Integrated Memory System (refer to chapter 5)
• Power Windows (refer to chapter 5)
• Wide Sunroof (if equipped) (refer to chapter 5)
• Power Trunk (refer to chapter 5)
• Automatic Climate Control System (refer to chapter 5)
• Clock (refer to the Infotainment system manual)
• Infotainment System (refer to the Infotainment system manual)
Tires and Wheels
WARNING Tire failure may cause loss of vehicle
control resulting in an accident. To
reduce risk of SERIOUS INJURY or
DEATH, take the following
precautions:
• Inspect your tires monthly for proper inflation as well as wear and
damage.
• The recommended cold tire pressure for your vehicle can be
found in this manual and on the tire
label located on the driver’s side
center pillar. Always use a tire
pressure gauge to measure tire
pressure. Tires with too much or
too little pressure wear unevenly
causing poor handling.
• Check the pressure of the spare every time you check the pressure
of the other tires on your vehicle.
• Replace tires that are worn, show uneven wear, or are damaged.
Worn tires can cause loss of braking
effectiveness, steering control, or
traction.
• ALWAYS replace tires with the same size, type, construction and
tread pattern as each tire that was
originally supplied with this vehicle.
Using tires and wheels other than
the recommended sizes could
cause unusual handling
characteristics, poor vehicle
control, or negatively affect your
vehicle’s Anti-Lock Brake System
(ABS) resulting in a serious
accident.

Hyundai_CE_en_US.book Page 20

9
9-21
Tire Care
For proper maintenance, safety, and
maximum electric energy economy,
you must always maintain
recommended tire inflation
pressures and stay within the load
limits and weight distribution
recommended for your vehicle.
OJK010021
All specifications (sizes and
pressures) can be found on a label
attached to the driver’s side center
pillar.
Recommended Cold Tire
Inflation Pressures
All tire pressures (including the spare)
should be checked when the tires are
cold. “Cold tires” means the vehicle
has not been driven for at least three
hours or driven less than one mile (1.6
km).
Warm tires normally exceed
recommended cold tire pressures by
4 to 6 psi (28 to 41 kPa). Do not
release air from warm tires to adjust
the pressure or the tires will be
under-inflated. For recommended
inflation pressure, refer to the “Tires
and Wheels” section in chapter 2.
WARNING • Recommended pressures must be maintained for the best ride,
vehicle handling, and minimum tire
wear.
• Over-inflation or under-inflation can reduce tire life, adversely affect
vehicle handling, and lead to
sudden tire failure that may result
in loss of vehicle control resulting in
a collision.
• Severe under-inflation may lead to severe heat build-up, causing
blowouts, tread separation, and
other tire failures that result in loss
of vehicle control resulting in a
collision. This risk is much higher on
hot days and when driving for a
long time at high speeds.
• Under-inflation may cause excessive wear, poor handling, and
reduced fuel economy. Wheel
deformation is also possible. Keep
your tire pressures at the proper
levels. If a tire frequently needs
refilling, have it inspected by an
authorized HYUNDAI dealer.
• Over-inflation produces a harsh ride, excessive wear at the center of
the tire tread, and a greater
possibility of damage from road
hazards.

Hyundai_CE_en_US.book Page 21

Maintenance
9-22
Check Tire Inflation Pressure
Check your tires, including the spare
tire, once a month or more.
How to check
Use a good quality tire pressure
gauge to check tire pressure. You can
not tell if your tires are properly
inflated simply by looking at them.
Radial tires may look properly inflated
when they are under-inflated.
Remove the valve cap from the tire
valve stem. Press the tire gauge
firmly onto the valve to get a pressure
measurement. If the cold tire inflation
pressure matches the recommended
pressure on the tire and loading
information label, no further
adjustment is necessary. If the
pressure is low, add air until you
reach the recommended pressure.
Make sure to put the valve caps back
on the valve stems. Without the valve
cap, dirt or moisture could get into
the valve core and cause air leakage.
If a valve cap is missing, install a new
one as soon as possible.
If you overfill the tire, release air by
pushing on the metal stem in the
center of the tire valve. Recheck the
tire pressure with the tire gauge. Be
sure to put the valve caps back on the
valve stems. Without the valve cap,
dirt or moisture could get into the
valve core and cause air leakage. If a
valve cap is missing, install a new one
as soon as possible.
Tire Rotation
To equalize tread wear, HYUNDAI
recommends that the tires be rotated
according to the maintenance
schedule or sooner if irregular wear
develops.
During rotation, check the tires for
correct balance.
When rotating tires, check for uneven
wear and damage. Abnormal wear is
usually caused by incorrect tire
pressure, improper wheel alignment,
out-of-balance wheels, severe
braking or severe cornering. Look for
bumps or bulges in the tread or side
of the tire. Replace the tire if you find
any of these conditions. Replace the
tire if fabric or cord is visible. After
rotation, be sure to bring the front
and rear tire pressures to
specification and check wheel lug nut
tightness (proper torque is 79-94
lbf·ft (11-13kgf·m).
B9005001
Disc brake pads should be inspected
for wear whenever tires are rotated.
Information When installing an unsymmetrical tire,
install the side marked “outside” facing
out.

Hyundai_CE_en_US.book Page 22

Maintenance
9-24
front or two rear tires (or wheels) as
a pair. Replacing just one tire can
seriously affect your vehicle’s
handling.
• Tires degrade over time, even when they are not being used. Regardless
of the remaining tread, HYUNDAI
recommends that tires be replaced
after six (6) years of normal service.
• Heat caused by hot climates or frequent high loading conditions
can accelerate the aging process.
Failure to follow this warning may
cause sudden tire failure, which
could lead to a loss of vehicle
control resulting in an accident.

WARNING The original tire should be repaired or
replaced as soon as possible to avoid
failure of the spare and loss of vehicle
control resulting in an accident. The
compact spare tire is for emergency
use only. Do not operate your vehicle
over 50 mph (80 km/h) when using
the compact spare tire.

Wheel Replacement
When replacing the metal wheels for
any reason, make sure the new
wheels are equivalent to the original
factory units in diameter, rim width,
and offset.
Tire Traction
Tire traction can be reduced if you
drive on worn tires, tires that are
improperly inflated or on slippery
road surfaces. Tires should be
replaced when tread wear indicators appear. To reduce the possibility of
losing control, slow down whenever
there is rain, snow or ice on the road.
Tire Maintenance
In addition to proper inflation, correct
wheel alignment helps to decrease
tire wear. If you find a tire is worn
unevenly, have your dealer check the
wheel alignment.
When you have new tires installed,
make sure they are balanced. This will
increase vehicle ride comfort and tire
life. Additionally, a tire should always
be rebalanced if it is removed from
the wheel.
Tire Sidewall Labeling
This information identifies and
describes the fundamental
characteristics of the tire and also
provides the Tire Identification
Number (TIN) for safety standard
certification. The TIN can be used to
identify the tire in case of a recall.
B9005401
1. Manufacturer or brand name
Manufacturer or brand name is
shown.
Hyundai_CE_en_US.book Page 24

Maintenance
9-26
For example:
DOT XXXX XXXX 1523 represents that
the tire was produced in the 15th
week of 2023.
4. Tire ply composition and material
The number of layers or plies of
rubber-coated fabric in the tire. Tire
manufacturers also must indicate the
materials in the tire, which include
steel, nylon, polyester, and others.
The letter “R” means radial ply
construction; the letter “D“ means
diagonal or bias ply construction; and
the letter “B” means belted-bias ply
construction.
5. Maximum permissible inflation
pressure
This number is the greatest amount
of air pressure that should be put in
the tire. Do not exceed the maximum
permissible inflation pressure. Refer
to the Tire and Loading Information
label for recommended inflation
pressure.
6. Maximum load rating
This number indicates the maximum
load in kilograms and lbs. that can be
carried by the tire. When replacing
the tires on the vehicle, always use a
tire that has the same load rating as
the factory installed tire.
Uniform tire quality grading
Quality grades can be found where
applicable on the tire sidewall
between tread shoulder and
maximum section width.
For example:
TREADWEAR 200
TRACTION AATEMPERATURE A
Tread wear
The tread wear grade is a
comparative rating based on the
wear rate of the tire when tested
under controlled conditions on a
specified government test course.
For example, a tire graded 150 would
wear one-and-a-half times (1½) as
well on the government course as a
tire graded 100.
The relative performance of tires
depends upon the actual conditions
of their use, however, and may depart
significantly from the norm due to
variations in driving habits, service
practices and differences in road
characteristics and climate.
These grades are molded on the
sidewalls of passenger vehicle tires.
The tires available as standard or
optional equipment on your vehicle
may vary with respect to grade.
Traction - AA, A, B & C
The traction grades, from highest to
lowest, are AA, A, B and C. Those
grades represent the tire’s ability to
stop on wet pavement as measured
under controlled conditions on
specified government test surfaces
of asphalt and concrete. A tire
marked C may have poor traction
performance.
WARNING The traction grade assigned to this
tire is based on straight ahead
braking traction tests, and does not
include acceleration, cornering,
hydroplaning, or peak traction
characteristics.

Hyundai_CE_en_US.book Page 26

Maintenance
9-28
DOT markings
A code molded into the sidewall of a
tire signifying that the tire is in
compliance with the U.S. Department
of Transportation motor vehicle
safety standards. The DOT code
includes the Tire Identification
Number (TIN), an alphanumeric
designator which can also identify
the tire manufacturer, production
plant, brand and date of production.
GVWR
Gross Vehicle Weight Rating
GAWR FRT
Gross Axle Weight Rating for the
Front Axle.
GAWR RR
Gross Axle Weight Rating for the Rear
axle.
Intended outboard sidewall
The side of an asymmetrical tire, that
must always face outward when
mounted on a vehicle.
Kilopascal (kPa)
The metric unit for air pressure.
Light Truck (LT) tire
A tire designated by its manufacturer
as primarily intended for use on
lightweight trucks or multipurpose
passenger vehicles.
Load ratings
The maximum load that a tire is rated
to carry for a given inflation pressure.Load index
An assigned number ranging from 1 to
279 that corresponds to the load
carrying capacity of a tire.
Maximum inflation pressure
The maximum air pressure to which a
cold tire may be inflated. The
maximum air pressure is molded onto
the sidewall.
Maximum load rating
The load rating for a tire at the
maximum permissible inflation
pressure for that tire.
Maximum loaded vehicle weight
The sum of curb weight; accessory
weight; vehicle capacity weight; and
production options weight.
Normal occupant weight
The number of occupants a vehicle is
designed to seat multiplied by 150
lbs. (68 kg).
Occupant distribution
Designated seating positions.
Outward facing sidewall
An asymmetrical tire has a particular
side that faces outward when
mounted on a vehicle. The outward
facing sidewall bears white lettering
or bears manufacturer, brand, and/or
model name molding that is higher or
deeper than the same moldings on
the inner facing sidewall.
Hyundai_CE_en_US.book Page 28

Maintenance
9-30
Vehicle maximum load on the tire
Load on an individual tire due to curb
and accessory weight plus maximum
occupant and cargo weight.
Vehicle normal load on the tire
Load on an individual tire that is
determined by distributing to each
axle its share of the curb weight,
accessory weight, and normal
occupant weight and dividing by 2.
Vehicle placard
A label permanently attached to a
vehicle showing the original
equipment tire size and
recommended inflation pressure.
All Season Tires
HYUNDAI specifies all season tires on
some models to provide good
performance for use all year round,
including snowy and icy road
conditions. All season tires are
identified by ALL SEASON and/or
M+S (Mud and Snow) on the tire
sidewall. Snow tires have better snow
traction than all season tires and may
be more appropriate in some areas.
Summer Tires
HYUNDAI specifies summer tires on
some models to provide superior
performance on dry roads. Summer
tire performance is substantially
reduced in snow and ice. Summer
tires do not have the tire traction
rating M+S (Mud and Snow) on the
tire side wall. If you plan to operate
your vehicle in snowy or icy
conditions, HYUNDAI recommends
the use of snow tires or all season
tires on all four wheels.
Snow Tires
If you equip your car with snow tires,
they should be the same size and
have the same load capacity as the
original tires. Snow tires should be
installed on all four wheels;
otherwise, poor handling may result.
Snow tires should carry 4 psi (28 kPa)
more air pressure than the pressure
recommended for the standard tires
on the tire label on the driver’s side of
the center pillar, or up to the
maximum pressure shown on the tire
sidewall, whichever is less. Do not
drive faster than 75 mph (120 km/h)
when your vehicle is equipped with
snow tires.
Radial-Ply Tires
Radial-ply tires provide improved
tread life, road hazard resistance and
smoother high speed ride. The
radial-ply tires used on this vehicle
are of belted construction, and are
selected to complement the ride and
handling characteristics of your
vehicle. Radial-ply tires have the
same load carrying capacity, as
bias-ply or bias belted tires of the
same size, and use the same
recommended inflation pressure.
Mixing of radial-ply tires with bias-ply
or bias belted tires is not
recommended. Any combinations of
radial-ply and bias-ply or bias belted
tires when used on the same vehicle
will seriously deteriorate vehicle
handling. The best rule to follow is:
Identical pairs of radial-ply tires
should always be used as a set for the
front tires and a set for the rear tires.
Longer wearing tires can be more
susceptible to irregular tread wear. It
is very important to follow the tire
Hyundai_CE_en_US.book Page 30