2021 HYUNDAI I20 Owners Manual

10-46
Maintenance
Front windshield wiper blade
OLMB073020OLMB073020

1. Raise the wiper arm and turn the wiper
blade assembly to expose the plastic
locking clip.
NOTICE
Do not allow the wiper arm to fall
against the windshield, since it may
chip or crack the windshield.
OLMB073021OLMB073021
OLMB073022OLMB073022
2. Compress the clip and slide the blade
assembly downward.
3. Lift it off the arm.
4. Install the blade assembly in the
reverse order of removal.

10-47
10
Rear window wiper blade
(if equipped)
OLMB073023OLMB073023
1. Raise the wiper arm and rotate the
wiper blade assembly (1).
2. Pull out the wiper blade assembly.
OLMB073024OLMB073024
3. Install the new blade assembly by
inserting the center part into the slot
in the wiper arm until it clicks into
place.
4. Make sure the blade assembly is
installed firmly by trying to pull it
slightly.
To prevent damage to the wiper arms
or other components, we recommend
that the wiper blade be replaced by an
authorized HYUNDAI dealer.

10-48
Maintenance
For best battery service
OBI3090013OBI3090013
• Keep the battery securely mounted.
• Keep the battery top clean and dry.
• Keep the terminals and connections
clean, tight, and coated with
petroleum jelly or terminal grease.
• Rinse any spilled electrolyte from the
battery immediately with a solution of
water and baking soda.
• If the vehicle is not going to be used
for an extended time, disconnect the
negative terminal cable of the battery
to prevent discharge.
i Information - For batteries
marked with UPPER and
LOWER
OHYK077011OHYK077011
If your vehicle is equipped with a battery
marked with LOWER (MIN) and UPPER
(MAX) on the side, you should check the
electrolyte level.
The electrolyte level should be between
LOWER (MIN) and UPPER (MAX).
Be careful not to spill distilled (or
de-mineralized) water over the battery
surface or other adjacent components.
Also, do not overfill the battery cells.
If not, it may corrode the battery or other
components. Finally, securely close the
cell cap. However, we recommend you to
contact an authorized HYUNDAI dealer
for better battery service.
NOTICE
If the Electrolyte level is Low, add
distilled (or demineralized) water.
Never add sulfuric acid or other
electrolyte.
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10-49
10
WARNING
Battery dangers
Always read the following
instructions carefully when
handling a battery.
Keep lighted cigarettes and
all other flames or sparks
away from the battery.
Hydrogen, a highly
combustible gas, is always
present in battery cells and
may explode if ignited.
Keep batteries out of the
reach of children because
batteries contain highly
corrosive SULFURIC ACID.
Do not allow battery acid to
contact your skin, eyes,
clothing or paint finish.
If any electrolyte gets into
your eyes, flush your eyes
with clean water for at least
15 minutes and get
immediate medical
attention. If electrolyte gets
on your skin, thoroughly
wash the contacted area. If
you feel a pain or a burning
sensation, get medical
attention immediately.
Wear eye protection when
charging or working near a
battery. Always provide
ventilation when working in
an enclosed space.
An inappropriately
disposed battery can be
harmful to the environment
and human health. Dispose
the battery according to
your local law(s) or
regulation.
The battery contains lead.
Do not dispose of it after
use. Please return the
battery to an authorized
HYUNDAI dealer to be
recycled.
• When lifting a plastic-cased battery,
excessive pressure on the case may
cause battery acid to leak, resulting
in personal injury. Lift with a battery
carrier or with your hands on
opposite corners.
• Never attempt to recharge the
battery when the battery cables are
connected.
• The electrical ignition system works
with high voltage. Never touch these
components with the engine running
or the ignition switched on.
Failure to follow the above warnings
can result in serious bodily injury or
death.

10-50
Maintenance
NOTICE
If you connect unauthorized electronic
devices to the battery, the battery may
be discharged. Never use unauthorized
devices.
Battery capacity label
OQXI079062OQXI079062
„„ Example Example
 The actual battery label in the vehicle
may differ from the illustration.
1. CMF45L-DIN : The HYUNDAI model
name of battery
2. 12V : The nominal voltage
3. 45Ah(20HR) : The nominal capacity (in
Ampere hours)
4. RC 80min : The nominal reserve
capacity (in min.)
5. CCA410 : The cold-test current in
amperes by SAE
6. 410A : The cold-test current in
amperes by EN
Battery recharging
Your vehicle has a maintenance-free,
calcium-based battery.
• If the battery becomes discharged in 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 electric load while the
vehicle is being used, recharge it at
20-30A for two hours.
WARNING
Recharging battery
When recharging the battery, observe
the following precautions:
• The battery must be removed from
the vehicle and placed in an area with
good ventilation.
• Do not allow cigarettes, sparks, or
flame near the battery.
• Watch the battery during charging,
and stop or reduce the charging
rate if the battery cells begin
gassing (boiling) violently or if the
temperature of the electrolyte of any
cell exceeds 49°C (120°F).
• Wear eye protection when checking
the battery during charging.
• 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.

10-51
10
WARNING
• Before performing maintenance or
recharging the battery, turn off all
accessories and stop the engine.
• The negative battery cable must be
removed first and installed last when
the battery is disconnected.
Reset items
Items should be reset after the battery
has been discharged or the battery has
been disconnected.
• Auto up/down window
(See chapter 5)
• Climate control system
(See chapter 5)
• Audio (See chapter 5)
Battery replacement
Replacing a Battery required
precautionary measures.
We recommend that you consult an
authorized HYUNDAI dealer.

10-52
Maintenance
Tire care
For proper maintenance, safety, and
maximum fuel economy, you must
always maintain recommended tire
inflation pressures and stay within
the load limits and weight distribution
recommended for your vehicle.
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 1.6 km (one mile).
Recommended pressures must be
maintained for the best ride, top vehicle
handling, and minimum tire wear.
For recommended inflation pressure,
refer to “Tire and wheels” in chapter 2.
OAI3019023OAI3019023
All specifications (sizes and pressures)
can be found on a label attached to the
driver’s side center pillar.
WARNING
Tire underinflation
Severe underinflation (70 kPa (10 psi) or
more) can lead to severe heat build-up,
causing blowouts, tread separation and
other tire failures that can result in the
loss of vehicle control leading to severe
injury or death. This risk is much higher
on hot days and when driving for long
periods at high speeds.
NOTICE
• Underinflation also results in
excessive wear, poor handling
and reduced fuel economy. Wheel
deformation also is possible. Keep
your tire pressures at the proper
levels. If a tire frequently needs
refilling, we recommend that the
system be checked by an authorized
HYUNDAI dealer.
• Overinflation produces a harsh ride,
excessive wear at the center of the
tire tread, and a greater possibility of
damage from road hazards.
NOTICE
• Warm tires normally exceed
recommended cold tire pressures
by 28 to 41 kPa (4 to 6 psi). Do not
release air from warm tires to adjust
the pressure or the tires will be
underinflated.
• Be sure to reinstall the tire inflation
valve caps. 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.
TIRES AND WHEELS

10-53
10
WARNING
Tire Inflation
Overinflation or underinflation can
reduce tire life, adversely affect
vehicle handling, and lead to sudden
tire failure. This could result in loss of
vehicle control and potential injury.
NOTICE
Tire pressure
Always observe the following:
• Check tire pressure when the tires
are cold. (After vehicle has been
parked for at least three hours or
hasn’t been driven more than 1.6 km
(one mile) since startup.)
• Check the pressure of your spare tire
each time you check the pressure of
other tires.
• Never overload your vehicle. Be
careful not to overload a vehicle
luggage rack if your vehicle is
equipped with one.
• Worn, old tires can cause accidents.
If your tread is badly worn, or if your
tires have been damaged, replace
them.
Checking tire inflation pressure
Check your tires once a month or more.
Also, check the tire pressure of the spare
tire.
How to check
Use a good quality gage 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 even when they’re
underinflated.
Check the tire’s inflation pressure when
the tires are cold. - “Cold” means your
vehicle has been sitting for at least three
hours or driven no more than 1.6 km (1
mile).
Remove the valve cap from the tire valve
stem. Press the tire gage 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 amount.
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 gage. Be
sure to put the valve caps back on the
valve stems. They help prevent leaks by
keeping out dirt and moisture.