coolant HYUNDAI SONATA HYBRID 2019 Owner's Manual

7-22
Maintenance
Inverter coolant
Check the condition and connections of all cooling system hoses and
heater hoses. Replace any swollen
or deteriorated hoses.
The coolant level should be filled
between the MAX and the MIN
marks on the side of the coolant
reservoir when the engine is cool.
If the coolant level is low, add enough
distilled (deionized) water to bring
the level to the MAX mark, but do not
overfill. If frequent additions are
required, we recommend that you
see an authorized HYUNDAI dealer
for a cooling system inspection.
Recommended coolant
When adding coolant, use onlydeionized water, distilled water or
soft water for your vehicle and
never mix hard water in the coolant
filled at the factory.
An improper coolant mixture can result in severe malfunction or
engine/ hybrid system damage.
The engine in your vehicle has alu- minum engine parts and must be
protected by an phosphate-based
ethylene glycol coolant to preventcorrosion and freezing.
Do not use alcohol or methanol coolant or mix them with the spec-ified coolant.
Do not use a solution that contains more than 60% antifreeze or less
than 35% antifreeze, which would
reduce the effectiveness of thesolution. For mixing percentage, refer to the
following table:
Information
If in doubt about the mix ratio, a 50%
water and 50% antifreeze mix is the
easiest to mix together as it will be the
same quantity of each. It is suitable to
use for most temperature ranges of -
35°C (-31°F) and higher.
i
Ambient
Temperature Mixture Percentage
(volume)
Antifreeze Water
-15°C (5°F) 35 65
-25°C (-13°F) 40 60
-35°C (-31°F) 50 50
-45°C (-49°F) 60 40
OLFH074006

7-23
7
Maintenance
Changing engine coolant
Have coolant changed by an author-
ized HYUNDAI dealer according tothe Maintenance Schedule at the
beginning of this chapter.
To prevent damage to engine
parts, put a thick towel around the
radiator cap before refilling the
coolant to prevent the coolant
from overflowing into engine
parts, such as the generator.
Checking the hybrid starter &
generator (HSG) belt
Have the hybrid starter & generator (HSG) belt inspected or replacedaccording to the Maintenance
Schedule in this chapter by an
authorized HYUNDAI dealer.
NOTICE
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Turn the vehicle off while you
inspect the engine or hybrid
starter & generator (HSG)
belt. Otherwise it may result in
serious injury.
Keep hands, clothing etc.
away from the hybrid starter &
generator (HSG) belt.
WARNING
When the HSG belt is worn out
or damaged, replace the belt.
Otherwise, it may cause engine
overheating or battery dis-
charge.
CAUTIONDo not use engine coolant or
antifreeze in the washer fluid
reservoir.
Engine coolant can severely
obscure visibility when sprayed
on the windshield and may
cause loss of vehicle controlresulting in an accident.
Engine coolant may also cause
damage to paint and body trim.
WARNING

7-25
7
Maintenance
WWAASSHH EERR FF LLUU IIDD
Checking the washer fluid
level
Check the fluid level in the washer
fluid reservoir and add fluid if neces-
sary. Plain water may be used if
washer fluid is not available.
However, use washer solvent with
antifreeze characteristics in cold cli-
mates to prevent freezing.
Checking the parking brake
Foot type
Check whether the stroke is within
specification when the parking brakepedal is depressed with 20 kg (44
lbs, 196 N) of force. Also, the parking
brake alone should securely hold the
vehicle on a fairly steep grade. If the
stroke is more or less than specified,
have the parking brake adjusted by
an authorized HYUNDAI dealer.
Stroke : 3 notch
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ODH053142
To prevent serious injury or
death, take the following safetyprecautions when using washerfluid:
Do not use engine coolant or
antifreeze in the washer fluid
reservoir.
Engine coolant can severely obscure visibility when
sprayed on the windshield and
may cause loss of vehicle con-
trol resulting in an accident or
damage to paint and body trim.
Do not allow sparks or flame to contact the washer fluid or the
washer fluid reservoir. Washer
fluid may contain alcohol and
can be flammable.
Do not drink washer fluid and
avoid contact with skin.
Washer fluid is poisonous tohumans and animals.
Keep washer fluid away from
children and animals.
WARNING
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7-45
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.

7-88
Maintenance
Canister
Fuel vapors generated inside the fuel tank are absorbed and stored in the
onboard canister. When the engine is
running, the fuel vapors absorbed in
the canister are drawn into the surgetank through the purge control sole-
noid valve.
Purge Control Solenoid Valve(PCSV)
The purge control solenoid valve is
controlled by the Engine Control
Module (ECM); when the engine
coolant temperature is low during
idling, the PCSV closes so that evap-
orated fuel is not taken into the
engine. After the engine warms-up
during ordinary driving, the PCSV
opens to introduce evaporated fuel to
the engine.
3. Exhaust emission control system
The Exhaust Emission Control
System is a highly effective system
which controls exhaust emissions
while maintaining good vehicle per-
formance.
When the engine starts or fails to
start, excessive attempts to restart
the engine may cause damage to theemission system.
Vehicle modifications
This vehicle should not be modi-fied. Modification of your vehicle
could affect its performance, safety
or durability and may even violate
governmental safety and emis-
sions regulations.
In addition, damage or performance
problems resulting from any modifi-
cation may not be covered under
warranty.
If you use unauthorized electronic devices, it may cause the vehicle to
operate abnormally, wire damage,
battery discharge and fire. For your
safety, do not use unauthorized
electronic devices.
Engine exhaust (carbon monox-
ide) precautions
Carbon monoxide can be present with other exhaust fumes. If you
smell exhaust fumes of any kind in
your vehicle, drive with all the win-
dows fully open. Have your vehicle
checked and repaired immediately.
Engine exhaust gases contain
carbon monoxide (CO). Though
colorless and odorless, it is
dangerous and could be lethal if
inhaled. Follow the instructions
on this page to avoid CO poi-soning.
WARNING

8-6
Specifications & Consumer information
To help achieve proper engine and powertrain performance and durability, use only lubricants of the proper quality.
The correct lubricants also help promote engine efficiency that results in improved fuel economy.
RREECCOO MM MMEENN DDEEDD LL UU BBRRIICC AA NN TTSS AA NN DD CC AA PPAA CCIITT IIEE SS
*1
Refer to the recommended SAE viscosity numbers on the next page.
* 2
Engine oils labeled Energy Conserving Oil are now available. Along with other additional benefits, they contribute to fuel econo my by reducing
the amount of fuel necessary to overcome engine friction. Often, these improvements are difficult to measure in everyday driving, but in a year’s
time, they can offer significant cost and energy savings.
* 3
If the API service SM engine oil is not available in your country, you are able to use API service SL. Lubricant
Volume Classification
Engine oil * 1
*2
(drain and refill)
Recommends
4.1 l(4.33 US qt.) API Service SM or above *
3
/ ILSAC GF- 4 or above
ACEA A5 or above
Automatic transmission fluid
6.0 l (6.34 US qt.) MICHANG ATF SP-IV / SK ATF SP-IV /
NOCA ATF SP-IV / HYUNDAI genuine ATF SP-IV or other
brands meeting the above specification approved by Hyundai Motor Co.,
Engine coolant6.6 ~ 6.9 l
(6.97~7.29 US qt.)Mixture of antifreeze and water
(Ethylene glycol base coolant for aluminum radiator)
Inverter coolant
2.26 l(2.38 US qt.) Mixture of antifreeze and water
(Ethylene glycol base coolant for aluminum radiator)
Brake fluid
0.7~0.8 l
(0.74~0.85 US qt.) FMVSS116 DOT-3 or DOT-4
FuelHybrid60
l(15.85 US gal.)Refer to "Fuel Requirements" in the Foreword chapter.Plug-in hybrid55 l(14.53 US gal.)

I-4
Driver Attention Alert system (DAA) ............................5-62
Resetting the system ...................................................5-64
System malfunction ....................................................5-64
System setting and activation .....................................5-62
System standby...........................................................5-64
Driver position memory system .....................................3-14 Easy Access Function .................................................3-15
Storing Positions into Memory ..................................3-14
Driving the Hybrid/Plug-in Hybrid Vehicle ....................H22
Changing plug-in hybrid mode ...................................H26
Energy flow.................................................................H38
Hybrid System Gauge .................................................H24
Special features ...........................................................H23
Starting the vehicle .....................................................H22
Warning and indicator lights.......................................H27
Warning messages.......................................................H28
Emission control system .................................................7-87 Crankcase emission control system ...........................7-87
Evaporative emission control system including onboard refueling vapor recovery (ORVR) ............7-87
Exhaust emission control system ...............................7-88
Engine ...............................................................................8-2
Engine compartment..................................................1-6, 7-3
Engine coolant/Inverter coolant ......................................7-20
Changing engine coolant ............................................7-23
Checking the engine/inverter coolant level................7-20 Engine number ..................................................................8-9
Engine oil ........................................................................7-18
Checking the engine oil and filter ..............................7-19
Checking the engine oil level .....................................7-18
Engine start/stop button ....................................................5-5
Engine Stop/Start button positions ...............................5-7
Illuminated Engine Start/Stop button ...........................5-6
Starting the hybrid system............................................5-9
Explanation of scheduled maintenance items.................7-15
Exterior features..............................................................3-39 Fuel Filler Door (Hybrid) ...........................................3-46
Fuel Filler Door (Plug-in hybrid) ...............................3-50
Hood ...........................................................................3-39
Smart Trunk ................................................................3-43
Trunk ..........................................................................3-40
Exterior overview (I) ........................................................1-2
Exterior overview (II) .......................................................1-3
Fuses ...............................................................................7-51 Engine compartment panel fuse replacement ............7-54
Fuse/relay panel description .......................................7-56
Instrument panel fuse replacement.............................7-52
Index
E
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