2019 HYUNDAI SONATA HYBRID maintenance schedule

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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