2018 Hyundai Ioniq Plug-in Hybrid check oil

3-66
Malfunction IndicatorLamp (MIL)
This warning light illuminates:
When you place the Engine Start/
Stop button to the ON position.
- It illuminates for approximately 3seconds and then goes off.
When there is a malfunction with the emission control system.
In this case, have the vehicle inspect-
ed by an authorized HYUNDAI deal-
er.
Driving with the Malfunction
Indicator Lamp (MIL) on may
cause damage to the emission
control system which could affect
drivability and/or fuel economy. If the Malfunction Indicator Lamp
(MIL) illuminates, potential catalyt-
ic converter damage is possible
which could result in loss of
engine power.
In this case, have the vehicle inspect-
ed by an authorized HYUNDAI dealer
as soon as possible.
Charging System
Warning Light
When this warning light illuminates
while running the engine, the battery
is not being charged. Immediately
turn OFF all electrical accessories.
Try not to use electrically operated
controls, such as the power win-
dows. Keep running the engine.
Have the vehicle inspected by an
authorized HYUNDAI dealer as soon
as possible.
Engine Oil PressureWarning Light
This warning light illuminates:
When the engine oil pressure is low.
If the engine oil pressure is low:
1. Drive carefully to the nearest safe
location and stop your vehicle.
2. Turn the engine off and check the engine oil level (For more details,
refer to "Engine Oil" in chapter 7) .
If the level is low, add oil as required.
If the warning light remains on
after adding oil or if oil is not avail-
able, have the vehicle inspected
by an authorized HYUNDAI dealer
as soon as possible.
NOTICE
NOTICE
Convenient features of your vehicle

3-67
Convenient features of your vehicle
If the engine does not stopimmediately after the Engine Oil
Pressure Warning Light is illumi-
nated, severe damage could
result.
If the warning light stays on while the engine is running, it
indicates that there may be seri-
ous engine damage or malfunc-
tion. In this case:
1. Stop the vehicle as soon as it is safe to do so.
2. Turn off the engine and check the oil level. If the oil level is
low, fill the engine oil to the
proper level.
3. Start the engine again. If the warning light stays on after the
engine is started, turn the
engine off immediately. In this
case, have the vehicle inspect-
ed by an authorized HYUNDAI
dealer.
Low Fuel LevelWarning Light
This warning light illuminates:
When the fuel tank is nearly empty.
Add fuel as soon as possible.
Driving with the Low Fuel Level
warning light on or with the fuel
level below "E" can cause the
engine to misfire and damage the
catalytic converter (if equipped).
Engine Coolant Temperature WarningLight
This warning light illuminates:
When the engine coolant temper-
ature is above 248°F (120°C). This
means that the engine is overheat-
ed and may be damaged.
If your vehicle is overheated, refer
to "Overheating" in chapter 6.
NOTICE
NOTICE
3

3-139
Convenient features of your vehicle
3
Air conditioning system operation
tips
If the vehicle has been parked indirect sunlight during hot weather,
open the windows for a short time
to let the hot air inside the vehicle
escape.
After sufficient cooling has been achieved, switch back from the
recirculated air to the fresh outside
air position.
To help reduce moisture inside of the windows on rainy or humid
days, decrease the humidity inside
the vehicle by operating the air
conditioning system with the win-
dows and sunroof closed.
Use the air conditioning system every month only for a few minutes
to ensure maximum system per-
formance.
If you operate air conditioner excessively, the difference between
the temperature of the outside air
and that of the windshield could
cause the outer surface of the
windshield to fog up, causing loss
of visibility. In this case, set the
mode selection knob or button to
the position and fan speed
control to the lower speed.
System Maintenance
Climate control air filter
This filter is installed behind the glove
box. It filters the dust or other pollu-
tants that enter the vehicle through the
heating and air conditioning system.
Have the climate control air filter be
replaced by an authorized HYUNDAI
dealer according to the maintenance
schedule. If the vehicle is being driv-
en in severe conditions such as dusty
or rough roads, more frequent air
conditioner filter inspections and
changes are required.
If the air flow rate suddenly decreas-
es, the system should be checked at
an authorized HYUNDAI dealer.
Checking the amount of air conditioner refrigerant andcompressor lubricant
When the amount of refrigerant is
low, the performance of the air con-
ditioning is reduced. Overfilling also
reduces the performance of the air
conditioning system.
Therefore, if abnormal operation is
found, have the system inspected by
an authorized HYUNDAI dealer.
It is important that the correct
type and amount of oil and refrig-
erant is used. Otherwise, damage
to the compressor and abnormal
system operation may occur.
NOTICE
1LDA5047
Outside air
Recirculatedair
Climate control air filter Blower
Evaporatorcore Heater core

5-3
Driving your vehicle
5
Carbon monoxide (CO) gas is toxic. Breathing CO can cause unconsciousness and death.
Engine exhaust contains carbon monoxide which cannot be seen or smelled.
Do not inhale engine exhaust.
If at any time you smell engine exhaust inside the vehicle, open the windows immediately. Exposure to CO can cause
unconsciousness and death by asphyxiation.
Be sure the exhaust system does not leak.
The exhaust system should be checked whenever the vehicle is raised to change the oil or for any other purpose. If
you hear a change in the sound of the exhaust or if you drive over something that strikes the underneath side of the
vehicle, have the exhaust system checked as soon as possible by an authorized HYUNDAI dealer.
Do not run the engine in an enclosed area.
Letting the engine idle in your garage, even with the garage door open, is a hazardous practice. Run the engine only
long enough to start the engine and to move the vehicle out of the garage.
Avoid idling the engine for prolonged periods with people inside the vehicle.
If it is necessary to idle the engine for a prolonged period with people inside the vehicle, be sure to do so only in an
open area with the air intake set at "Fresh" and fan control set to high so fresh air is drawn into the interior.
Keep the air intakes clear.
To assure proper operation of the ventilation system, keep the ventilation air intakes located in front of the windshield
clear of snow, ice, leaves, or other obstructions.
If you must drive with the liftgate open:
Close all windows.
Open instrument panel air vents.
Set the air intake control at "Fresh", the air flow control at "Floor" or "Face", and the fan control set to high.
WARNING

5-88
Driving your vehicle
Driving too fast through large pud- dles can affect your brakes. If you
must go through puddles, try to
drive through them slowly.
If you believe your brakes may be wet, apply them lightly while driv-
ing until normal braking operation
returns.
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 increas-
es as the depth of tire tread
decreases, refer to "Tire Tread" in
chapter 7.
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 sev-
eral 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 con-
trol resulting in an accident.
Information
Never over-inflate your tires above the
maximum inflation pressure, as speci-
fied on your tires.
Fuel, engine coolant and engineoil
Driving at higher speeds on the high-
way 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.
i
In a rollover crash, an unbelted
person is significantly more
likely to die than a person wear-
ing a seat belt. Make sure all
passengers are wearing their
seat belts.
WARNING

5-91
Driving your vehicle
5
- When using tire chains:
Wrong size chains or improperlyinstalled chains can damage
your vehicle's brake lines, sus-
pension, body and wheels.
Use SAE "S" class or wire chains.
If you hear noise caused by chains contacting the body,
retighten the chain to prevent
contact with the vehicle body.
To prevent body damage, retighten the chains after driving
0.3~0.6 miles (0.5~1.0 km).
Do not use tire chains on vehi- cles equipped with aluminum
wheels. If unavoidable, use a
wire type chain.
Use wire chains less than 0.47 inch (12 mm) wide to prevent
damage to the chain's connec-
tion.
Winter Precautions
Use high quality ethylene glycolcoolant
Your vehicle is delivered with high
quality ethylene glycol coolant in the
cooling system. It is the only type of
coolant that should be used because
it helps prevent corrosion in the cool-
ing system, lubricates the water
pump and prevents freezing. Be sure
to replace or replenish your coolant
in accordance with the maintenance
schedule in chapter 7. Before winter,
have your coolant tested to assure
that its freezing point is sufficient for
the temperatures anticipated during
the winter.
Change to "winter weight" oil ifnecessary
In some climates it is recommended
that a lower viscosity "winter weight"
oil be used during cold weather. See
chapter 8 for recommendations. If
you aren't sure what weight oil you
should use, consult an authorized
HYUNDAI dealer.
Check battery and cables
Winter puts additional burdens on
the battery system. Visually inspect
the battery and cables as described
in chapter 7. The level of charge in
your battery can be checked by an
authorized HYUNDAI dealer or a
service station.
NOTICE

7
Maintenance
7
Maintenance
Engine Compartment .............................................7-3
Maintenance Services ...........................................7-5
Owner's Responsibility .....................................................7-5
Owner Maintenance Precautions..................................7-5
Owner Maintenance ..............................................7-6
How to Disconnect the (-) Cable for
Regular Maintenance (Hybrid vehicle) ........................7-7
Owner Maintenance Schedule .......................................7-7
Scheduled Maintenance Services........................7-8
Normal Maintenance Schedule ......................................7-9
Maintenance Under Severe Usage Conditions ........7-12
Severe driving conditions..............................................7-13
Explanation of Scheduled Maintenance
Items ......................................................................7-\
14
Engine Oil ..............................................................7-16
Checking the Engine Oil Level .....................................7-16
Checking the Engine Oil and Filter .............................7-17
Engine Coolant/Inverter Coolant .......................7-18
Checking the Coolant Level ..........................................7-18
Changing Coolant ............................................................7-21
Hybrid Starter & Generator (HSG) Belt ...........7-22
Checking the Hybrid Starter &
Generator (HSG) Belt .....................................................7-22
Brake Fluid ............................................................7-22
Checking the Brake Fluid Level ...................................7-22
Washer Fluid .........................................................7-23
Checking the Washer Fluid Level................................7-23
Parking Brake .......................................................7-24
Checking the Parking Brake .........................................7-24
Air Cleaner ............................................................7-24
Filter Replacement ..........................................................7-24
Climate Control Air Filter ....................................7-26
Filter Inspection ...............................................................7-26
Wiper Blades.........................................................7-28
Blade Inspection ..............................................................7-28
Blade Replacement .........................................................7-28
Battery (12 Volt, Plug-In Hybrid Vehicle) ........7-31
For Best Battery Service ..............................................7-32
Battery Recharging ........................................................7-32
Reset Features.................................................................7-33
Tires and wheels ..................................................7-34
Tire Care ........................................................................\
....7-34
Recommended Cold Tire Inflation Pressures ...........7-35
Check Tire Inflation Pressure ......................................7-36
Tire Rotation...................................................................\
..7-37
Wheel Alignment and Tire Balance ............................7-38
Tire Replacement ............................................................7-387

7-7
7
Maintenance
How to Disconnect the (-)
Cable for Regular Maintenance
(Hybrid vehicle)
When the vehicle is under regular
maintenance, make sure to separate
the (-) cable before maintenance.
Separate the (-) cable following the
below instructions.
1. Fold the rear left side seat.
2. Remove the service cover (A) onthe luggage trim.
3. Separate the (-) cable (B).
Reassemble in the reverse order.
Owner Maintenance Schedule
When you stop for fuel:
• Check the engine oil level.
Check the coolant level in the engine coolant reservoir.
Check the windshield washer fluid level.
Check for low or under-inflated tires.
While operating your vehicle:
Note any changes in the sound ofthe exhaust or any smell of
exhaust fumes in the vehicle.
Check for vibrations in the steering wheel. Notice if there is any
increased steering effort or loose-
ness in the steering wheel, or
change in its straight-ahead posi-
tion.
Notice if your vehicle constantly turns slightly or "pulls" to one side
when traveling on smooth, level
road.
When stopping, listen and check for unusual sounds, pulling to one
side, increased brake pedal travel
or "hard-to-push" brake pedal.
If any slipping or changes in the operation of your transmission
occurs, check the transmission
fluid level.
Check the dual clutch transmission P (Park) function.
Check the parking brake.
Check for fluid leaks under your vehicle (water dripping from the air
conditioning system during or after
use is normal).
Be careful when checking your
engine coolant/inverter coolant
level when the engine is hot.
This may result in coolant being
blown out of the opening and
cause serious burns and other
injuries.
WARNING
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