2019 HYUNDAI SONATA HYBRID oil pressure

3-67
Convenient features of your vehicle
3
Engine Oil PressureWarning Light
This warning light illuminates:
When the Engine Start/Stop button is in the ON position.
- It remains on until the engine isstarted.
When the engine oil pressure is low.
When the engine oil pressure is low,
follow the below procedures:
1. Carefully drive to the nearest safe location and stop your vehicle.
2. Turn OFF the engine and check the engine oil level (For more
information, refer to the
"Engine Oil" in the chapter 7) .If
the level is low, add engine oil.
When the warning light remains ON after adding engine oil and
restarting the engine, or when
engine oil refilling is unavailable,
turn OFF the engine. These indi-
cate a mechanical problem, which
needs to be repaired before driv-ing. In this case, have your vehicle
inspected by an authorized
HYUNDAI dealer.
When the Engine Oil Pressure
Warning Light illuminates, turn
OFF the engine, and check the
engine oil level, in an attempt to
prevent severe engine damage.These should be done as soon as
it is safe to do so. When the oil
level is low, add the engine oil to
the proper level and start the
engine again. When the light stays
ON, while running the engine,
immediately turn OFF the engine.
In this case, have your vehicle
inspected by an authorized
HYUNDAI dealer.
Low Fuel Level Warning 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 (Empty)" maycause the engine to misfire and
damage the catalytic converter.
Driving the vehicle in EV mode after fuel runs out may damage
the hybrid battery.
NOTICE
NOTICE

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Convenient features of your vehicle
3
System maintenance
Climate control air filter
The climate control air filter installed
behind the glove box filters the dustor other pollutants that come into the
vehicle from the outside through theheating and air conditioning system.
If dust or other pollutants accumulate
in the filter over a period of time, the
air flow from the air vents may
decrease, resulting in moisture accu-
mulation on the inside of the wind-
shield even when the outside (fresh)
air position is selected. If this hap-
pens, we recommend that the cli-
mate control air filter be replaced by
an authorized HYUNDAI dealer.Information
 Replace the filter according to the Maintenance Schedule.
If the car is being driven in severe
conditions such as dusty, rough
roads, more frequent climate con-
trol air filter inspections and
changes are required.
 When the air flow rate suddenly decreases, we recommend that the
system be checked by an authorized
HYUNDAI dealer.
Checking the amount of air
conditioner refrigerant and
compressor lubricant
When the amount of refrigerant is
low, the performance of the air con-
ditioning is reduced. Overfilling alsohas a bad influence on the air condi-tioning system.
Therefore, if abnormal operation is
found, we recommend that the sys-
tem be inspected by an authorized
HYUNDAI dealer.
i
1LDA5047
Outside air
Recirculatedair
Climate control air filter Blower
Evaporatorcore Heater core
Because the refriger-
ant is at very high
pressure, the air con-ditioning system
should only be serv-
iced by trained and certified
technicians. It is important thatthe correct type and amount of
oil and refrigerant is used.
Otherwise, it may cause damage
to the vehicle and personal injury.
WARNING

5-103
Driving your vehicle
5
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
fail the braking operation.Information
Never over-inflate your tires above the
maximum inflation pressure, as speci-
fied on your tires.
Fuel, engine coolant and engine oil
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.
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What to do in an emergency
Starter won't function
Engine turns over but
will not start Engine misfires
Engine overheats Engine stops while
driving Fuel consumption is
excessive
Brake pedal is spongy
Braking power is insufficient
Steering wheel is heavy
Steering wheel shakesSteering wheel pulls to
one side while drivingVehicle pulls to one side
while braking
Tire wear is abnormalCharge warning light\
comes on while drivingWipers, horn or lights
won't funciton
Battery discharge is
excessive
Ignition circuit faulty
Ignition coil or condensor faulty
Distributor faulty
Alternator belt loose
Check fuses, bulbs or wiring
Brake dragging
Shift lever not positioned in "P" or "N" range
Frequent driving in lower gear
Air intrusion into brake lines
Brake fluid insufficient
Brake disc and pads wet
Brake pad wearWheel alignment incorrectWheel balance incorrect
Tire pressure incorrect (too low or high)
Tire size incorrectO
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SYMPTOM
PROBABLE CAUSE

7
Maintenance
7
Maintenance
Engine compartment .............................................7-3
Maintenance services ...........................................7-4Owner's responsibility ......................................................7-4
Owner maintenance precautions ..................................7-4
Owner maintenance ...............................................7-5 Owner maintenance schedule ........................................7-6
Scheduled maintenance services.........................7-8 Normal maintenance schedule .......................................7-9
Maintenance under severe usage conditions ..........7-13
Explanation of scheduled maintenance items .. 7-15
Engine oil ..............................................................7-18 Checking the engine oil level .......................................7-18
Checking the engine oil and filter ..............................7-19
Engine coolant/Inverter coolant .......................7-20 Checking the engine/inverter coolant level .............7-20
Changing engine coolant...............................................7-23
Hybrid starter & generator (HSG) belt.............7-23 Checking the hybrid starter &
generator (HSG) belt ......................................................7-23
Brake fluid ............................................................7-24 Checking the brake fluid level .....................................7-24
Washer fluid .........................................................7-25 Checking the washer fluid level ..................................7-25 Parking brake .......................................................7-25
Checking the parking brake .........................................7-25
Air cleaner ............................................................7-26 Filter replacement ...........................................................7-26
Climate control air filter .....................................7-28 Filter inspection ...............................................................7-28
Wiper blades .........................................................7-30 Blade inspection ..............................................................7-30
Blade replacement ..........................................................7-30
Battery...................................................................7-32 For best battery service................................................7-33
Battery recharging .........................................................7-33
Reset features .................................................................7-34
Tires and wheels ..................................................7-35 Tire care ............................................................................7-35
Recommended cold tire inflation pressures.............7-36
Check tire inflation pressure........................................7-37
Tire rotation .....................................................................7-38
Wheel alignment and tire balance ..............................7-39
Tire replacement .............................................................7-39
Wheel replacement .........................................................7-40
Tire traction ......................................................................7-40
7

7-6
Maintenance
Owner maintenance schedule
When you stop for fuel:
Check the engine oil level.
Check coolant level in the enginecoolant 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, levelroad.
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 automatic 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).
At least monthly:
Check coolant level in the enginecoolant reservoir.
Check the operation of all exterior lights, including the stoplights, turn
signals and hazard warning flashers.
Check the inflation pressures of all tires including the spare for tires
that are worn, show uneven wear,or are damaged.
Check for loose wheel lug nuts.
Be careful when checking your
engine coolant level when the
engine is hot. This may result in
coolant being blown out of theopening and cause serious
burns and other injuries.
WARNING

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7
Maintenance
Tire terminology and defini- tions
Air Pressure
The amount of air inside the tire
pressing outward on the tire. Air
pressure is expressed in pounds per
square inch (psi) or kilopascal (kPa).
Accessory Weight
This means the combined weight of
optional accessories. Some exam-
ples of optional accessories are
automatic transmission, power
seats, and air conditioning.
Aspect Ratio
The relationship of a tire’s height toits width.
Belt
A rubber coated layer of cords that is
located between the plies and the
tread. Cords may be made from steel
or other reinforcing materials.
Bead
The tire bead contains steel wires
wrapped by steel cords that hold the
tire onto the rim.
Bias Ply Tire
A pneumatic tire in which the plies
are laid at alternate angles less than
90 degrees to the centerline of thetread.
Cold Tire Pressure
The amount of air pressure in a tire,measured in pounds per square inch
(psi) or kilopascals (kPa) before a tire
has built up heat from driving.
Curb Weight
This means the weight of a motor
vehicle with standard and optional
equipment including the maximum
capacity of fuel, oil and coolant, but
without passengers and cargo.
DOT Markings
The DOT code includes the TireIdentification Number (TIN), an
alphanumeric designator which can
also identify the tire manufacturer,
production plant, brand and date ofproduction.

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7
Maintenance
Waxing
A good coat of wax provides a barri-
er between your paint and environ-
mental contamination. Keeping a
good coat of wax on your vehicle willhelp protect it.
Wax the vehicle when water will no longer bead on the paint.
Always wash and dry the vehicle
before waxing. Use a good quality
liquid or paste wax, and follow the
manufacturer’s instructions. Wax all
metal trim to protect it and to main-
tain its luster.
Removing oil, tar, and similar materi-
als with a spot remover will usually
strip the wax from the finish. Be sure
to re-wax these areas even if the rest
of the vehicle does not yet need wax-ing.
OLMB073082
Water washing in the engine
compartment including high
pressure water washing maycause the failure of electrical
circuits located in the engine
compartment.
Never allow water or other liq- uids to come in contact with
electrical/electronic compo-
nents inside the vehicle as
this may damage them.
CAUTION
Do not use strong soap,
chemical detergents or hot
water, and do not wash the
vehicle in direct sunlight or
when the body of the vehicleis warm.
Be careful when washing the
side windows of your vehicle.
Especially, with high-pressure
water, water may leak through
the windows and wet the inte-
rior.
To prevent damage to the
plastic parts, do not clean
with chemical solvents or
strong detergents.
To prevent damage to the
charging door, make sure to
close and lock the vehicle
doors when washing (high-
pressure washing, automatic
car washing, etc.) the vehicle.
CAUTION