maintenance schedule HYUNDAI SONATA HYBRID 2019 User Guide

7-12
Maintenance
Normal maintenance schedule (CONT.)
R : Replace I : Inspect and, after Inspection, clean, adjust, repair or replace if necessary.
No.DESCRIPTIONKILOMETERS X 10001224364860728496108120132144156168180192204216228240
MONTHS6121824303642485460667278849096102108114120
GENERAL ITEMS
9EXHAUST PIPE AND MUFFLERIIIIIIIIII
10SUSPENSION MOUNTING BOLTSIIIIIIIIII
11
STEERING GEAR BOX, LINKAGE &
BOOTS/LOWER ARM BALL JOINT,UPPER ARM BALL JOINT
IIIIIIIIII
12DRIVE SHAFTS AND BOOTSIIIIIIIIII
13AIR CONDITIONING REFRIGERANTIIIIIIIIII
14CLIMATE CONTROL AIR FILTER (FOR
EVAPORATOR AND BLOWER UNIT)RRRRRRRRRR

7-15
7
Maintenance
EEXX PPLLAA NN AATTIIOO NN OO FF SS CC HH EEDD UU LLEE DD MM AAIINN TTEENN AANN CCEE IITT EEMM SS
Engine oil and filter
The engine oil and filter should be
changed at the intervals specified in
the maintenance schedule. If the car
is being driven in severe conditions,more frequent oil and filter changesare required.
HSG (Hybrid starter & genera- tor) belt
The HSG belt should be changed at
the intervals specified in the mainte-
nance schedule.
Fuel filter
A clogged filter can limit the speed at
which the vehicle may be driven,damage the emission system and
cause multiple issues such as hard
starting. If an excessive amount of
foreign matter accumulates in the
fuel tank, the filter may require
replacement more frequently. After
installing a new filter, run the engine
for several minutes, and check for
leaks at the connections. Fuel filters
should be installed by an authorized
HYUNDAI dealer.
Fuel lines, fuel hoses and con- nections
Check the fuel lines, fuel hoses and
connections for leakage and dam-
age. Have an authorized HYUNDAI
dealer replace any damaged or leak-
ing parts immediately.
Vapor hose and fuel filler cap
The vapor hose and fuel filler cap should be inspected at those inter-
vals specified in the maintenance
schedule. Make sure a new vaporhose or fuel filler cap is correctlyreplaced.
Air cleaner filter
A genuine HYUNDAI air cleaner filter is recommended when the filter isreplaced.
Spark plugs
Make sure to install new spark plugs
of the correct heat range.

7-16
Maintenance
Cooling system
Check cooling system components,
such as radiator, coolant reservoir,
hoses and connections for leakage
and damage. Replace any damaged
parts.
Engine coolant/Inverter coolant
The coolant should be changed at
the intervals specified in the mainte-
nance schedule.
Automatic transmission fluid
Automatic transmission fluid should
not be checked under normal usage
conditions. But in severe conditions,the fluid should be changed at an
authorized HYUNDAI dealer inaccordance to the scheduled mainte-nance at the beginning of this chap-
ter.
Automatic transmission fluid
color is basically red.
As the vehicle is driven, the auto- matic transmission fluid will begin
to look darker. This is a normal
condition and you should not
judge the need to replace the fluid
based upon the changed color.
Brake hoses and lines
Visually check for proper installation,
chafing, cracks, deterioration and
any leakage. Replace any deteriorat-
ed or damaged parts immediately.
Brake fluid
Check brake fluid level in the brake
fluid reservoir. The level should be
between the MIN and the MAX
marks on the side of the reservoir.
Use only hydraulic brake fluid con-
forming to DOT 3 or DOT 4 specifi-cation.
Parking brake
Inspect the parking brake system
including the parking brake pedal
and cables.
NOTICE
The use of a non-specified fluid could result in transmission
malfunction and failure. Use
only the specified automatic
transmission fluid (refer to"Recommended Lubricants and
Capacities" in chapter 8).
CAUTION

7-19
7
MaintenanceUse only the specified engine oil
(refer to "RecommendedLubricants and Capacities" in
chapter 8).
Checking the engine oil and filter
Have engine oil and filter changed by
an authorized HYUNDAI dealeraccording to the MaintenanceSchedule at the beginning of this
chapter.
NOTICE
Used engine oil may cause irri- tation or cancer of the skin if
left in contact with the skin for
prolonged periods of time.
Always protect your skin by
washing your hands thoroughlywith soap and warm water as
soon as possible after handlingused oil.
WARNING
OLFH074003

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
HHYY BBRRIIDD SS TT AA RRTTEERR && GG EENN EERR AA TTOO RR (( HH SSGG )) BB EELLTT

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

7-28
MaintenanceC
C LLIIMM AATTEE CC OO NNTTRR OO LL AA IIRR FF IILL TT EERR
Filter inspection
The climate control air filter should be replaced according to the
Maintenance Schedule. If the vehicle
is operated in severely air-polluted
cities or on dusty rough roads for a
long period, it should be inspected
more frequently and replaced earlier.
When you replace the climate control
air filter, replace it performing the fol-
lowing procedure, and be careful to
avoid damaging other components.
1. With the glove box open, removethe stoppers on both sides to
allow the glove box to hang freely
on the hinges. 2. Remove the support rod (1).
OLF074015OLF074014

7-87
7
Maintenance
EEMM IISS SSIIOO NN CC OO NNTTRR OO LL SS YY SSTT EEMM
The emission control system of your
vehicle is covered by a written limited
warranty. Please see the warranty
information contained in the Service
Passport in your vehicle.
Your vehicle is equipped with an emission control system to meet all
applicable emission regulations.There are three emission control
systems, as follows.
(1) Crankcase emission control sys-
tem
(2) Evaporative emission control sys- tem
(3) Exhaust emission control systemIn order to assure the proper function
of the emission control systems, it is
recommended that you have your
vehicle inspected and maintained by
an authorized HYUNDAI dealer inaccordance with the maintenance
schedule in this manual.1. Crankcase emission control system
The positive crankcase ventilation
system is employed to prevent air
pollution caused by blow-by gases
being emitted from the crankcase.This system supplies fresh filtered air
to the crankcase through the air
intake hose. Inside the crankcase,
the fresh air mixes with blow-by
gases, which then pass through the
PCV valve into the induction system.
2. Evaporative emission controlsystem including onboard
refueling vapor recovery
(ORVR)
The Evaporative Emission Control
System is designed to prevent fuel
vapors from escaping into the atmos-
phere. The ORVR system is
designed to allow the vapors fromthe fuel tank to be loaded into a can-ister while refueling at the gas sta-
tion, preventing the escape of fuel
vapors into the atmosphere.
For the Inspection and
Maintenance Test (With Electronic
Stability Control (ESC) system)
To prevent the vehicle from
ESC acitvation during
dynamometer testing, turn the
Electronic Stability Control
(ESC) system off by pressing
the ESC switch (ESC OFFlight illuminated).
After dynamometer testing is
completed, turn the ESC sys-
tem back on by pressing the
ESC switch again.
CAUTION

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
F

I-6
Lane Keeping Assist System (LKAS) ............................5-53
Limitations of the System ..........................................5-61
LKAS function change ...............................................5-60
LKAS malfunction .....................................................5-58
LKAS operation .........................................................5-54
LCD display ....................................................................3-85
LCD display control ...................................................3-85
Light ................................................................................3-98
Exterior Lights............................................................3-98
Interior Lights...........................................................3-107
Smart High Beam .....................................................3-100
Welcome System ......................................................3-106
Light bulbs ......................................................................7-69 Headlamp, parking lamp, turn signal lamp and side marker light bulb replacement.........................7-70
High mounted stop lamp ............................................7-76
Interior light bulb replacement ...................................7-76
License plate light bulb replacement .........................7-76
Rear combination light bulb replacement ..................7-74
Side repeater lamp replacement .................................7-73 Maintenance services ........................................................7-4
Owner maintenance precautions ..................................7-4
Owner's responsibility ..................................................7-4
Mirrors ............................................................................3-19 Inside Rearview Mirror ..............................................3-19
Reverse Parking Aid Function ...................................3-30
Side View Mirrors ......................................................3-27
Multimedia system............................................................4-2 Antenna ........................................................................4-2
Audio / Video / Navigation System (AVN) .................4-4
AUX, USB and iPod ®
Port ..........................................4-2
Bluetooth ®
Wireless Technology Hands-Free ..............4-4
Features of your vehicle ...............................................4-7
How vehicle audio works .............................................4-5
Steering Wheel Audio Control .....................................4-3
Owner maintenance ..........................................................7-5 Owner maintenance schedule .......................................7-6
Index
M
O
L

I-7
Panoramic sunroof ..........................................................3-35
Closing the sunroof ....................................................3-37
Resetting the sunroof..................................................3-38
Sliding the sunroof .....................................................3-36
Sunshade.....................................................................3-36
Tilting the sunroof ......................................................3-37
Parking brake ..................................................................7-25 Checking the parking brake .......................................7-25
PHEV (Plug-In Electric Vehicle) system ..........................H3 Plug-in Hybrid Vehicle .................................................H3
Recommended lubricants and capacities ..........................8-6 Recommended SAE viscosity number .........................8-7 Safety Precautions for Hybrid system.............................H42
High Voltage Battery Air Intake .................................H46
High Voltage Battery System......................................H42
If an accident occurs ...................................................H47
Safety Plug ..................................................................H45
When the hybrid vehicle shuts off ..............................H49
Scheduled maintenance services.......................................7-8
Maintenance under severe usage conditions ..............7-13
Normal maintenance schedule .....................................7-9
Seat belts .........................................................................2-24 Additional Seat Belt Safety Precautions ....................2-32
Care of Seat Belts .......................................................2-35
Seat Belt Restraint System .........................................2-26
Seat Belt Safety Precautions ......................................2-24
Seat Belt Warning Light .............................................2-25
Seats ..................................................................................2-4 Front Seats ....................................................................2-6
Head Restraints ..........................................................2-16
Rear Seats ...................................................................2-12
Safety Precautions ........................................................2-5
Seat Warmers and Air Ventilation Seats.....................2-20
I
Index
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