engine Hyundai Sonata 2020 Owner's Manual

08
8-69
• Do not operate the engine in confined or closed areas (such as garages) any
more than what is necessary to move
the vehicle in or out of the area.
• When the vehicle is stopped in an open area for more than a short time
with the engine running, adjust the
ventilation system (as needed) to draw
outside air into the vehicle.
• Never sit in a parked or stopped vehicle for any extended time with the
engine running.
• When the engine stalls or fails to start, excessive attempts to restart
the engine may cause damage to the
emission control system.
Operating precautions for catalytic
converters (if equipped)
WARNING
The exhaust system and catalytic
converter are very hot during and
immediately after the engine has been
running. To avoid SERIOUS INJURY or
DEATH:
• Do not park, idle, or drive the vehicle
over or near flammable objects, such
as grass, vegetation, paper, leaves,
etc. A hot exhaust system can ignite
flammable items under your vehicle.
• Keep away from the exhaust system
and catalytic converter or you may
get burned.
Also, do not remove the heat sink
around the exhaust system, do not
seal the bottom of the vehicle, and
do not coat the vehicle for corrosion
control. It may present a fire risk
under certain conditions. Your vehicle is equipped with a catalytic
converter emission control device.
To prevent damage to the catalytic
converter and to your vehicle, take the
following precautions:
• Use only UNLEADED FUEL for
gasoline engines.
• Do not operate the vehicle when there are signs of engine malfunction,
such as misfire or a noticeable loss of
performance.
• Do not misuse or abuse the engine. Examples of misuse are coasting with
the engine off and descending steep
grades in gear with the engine off.
• Do not operate the engine at high idle speed for extended periods (5
minutes or more).
• Do not modify or tamper with any part of the engine or emission
control system. All inspections and
adjustments must be made by an
authorized HYUNDAI dealer.
• Avoid driving with extremely low fuel level. If you run out of gasoline,
it could cause the engine to misfire
and result in excessive loading of the
catalytic converter.

IndexI-6
Emission control system ........................................................................\
.............. 8-67 Crankcase emission control system ................................................................ 8-68
Evaporative emission control System ............................................................. 8-68
Exhaust emission control system .................................................................... 8-68
Engine compartment ........................................................................\
.............. 2-6, 8-3
Engine compartment panel fuse replacement ...................................................... 8-48
Engine coolant ........................................................................\
............................. 8-21
Engine coolant temperature gauge........................................................................\
. 4-4
Engine number ........................................................................\
............................. 2-14
Engine oil ........................................................................\
..................................... 8-19
Engine specification........................................................................\
....................... 2-7
Engine Start/Stop button ........................................................................\
................ 6-9
Evaporative emission control System .................................................................. 8-68
Event Data Recorder (EDR) ........................................................................\
.......... 1-8
Exhaust emission control system ........................................................................\
. 8-68
Explanation of scheduled maintenance items ...................................................... 8-16
Exterior care........................................................................\
................................. 8-61
Exterior features........................................................................\
........................... 5-64 Hood ...................................................................\
............................................. 5-64
Trunk ...................................................................\
............................................ 5-65
Emergency trunk safety release....................................................................... 5-66
Fuel Filler Door ........................................................................\
....................... 5-70
Exterior overview Front view ........................................................................\
................................. 2-2
Rear view ........................................................................\
.................................. 2-3
F
Flat tire ........................................................................\
......................................... 7-12 Changing spare tire ........................................................................\
................ 7-12
Floor mat anchor(s)........................................................................\
.................... 5-151
Fluid Brake fluid ........................................................................\
............................... 8-24
Washer fluid ........................................................................\
............................ 8-25
Forward Collision-Avoidance Assist (FCA) ....................................................... 6-40 FCA-Junction Turning function ...................................................................... 6-55
Forward/Reverse Parking Distance Warning (PDW) .......................................... 5-99

I
I-7
Front seat adjustment ........................................................................\
..................... 3-5Manual adjustment ........................................................................\
.................... 3-5
Power adjustment ........................................................................\
...................... 3-7
Reclining seatback ........................................................................\
.................... 3-8
Front seat head restraints Adjusting the height up and down .................................................................. 3-12
Removal/Reinstallation .................................................\
.................................. 3-13
Fuel Filler Door ........................................................................\
........................... 5-70
Fuel gauge ........................................................................\
...................................... 4-4
Fuel requirements ........................................................................\
.......................... 1-5 Fuel additives ........................................................................\
............................ 1-6
Fuses ..................................................................\
.................................................. 8-46
Instrument panel fuse replacement.......................................\
........................... 8-47
Engine compartment panel fuse replacement ................................................. 8-48
Fuse/relay panel description ........................................................................\
.... 8-49
G
Gauges and meters ........................................................................\
......................... 4-3
Glove box ........................................................................\
.................................. 5-144
Guide to Hyundai genuine parts ........................................................................\
.... 1-3
H
Hazard warning flasher ........................................................................\
.................. 7-2
Hazardous driving conditions ........................................................................\
.... 6-133
Head restraints ........................................................................\
............................. 3-11 Front seat head restraints ........................................................................\
......... 3-12
Rear seat restraints ........................................................................\
.................. 3-14
Headlamp delay function ........................................................................\
............. 5-79
Headlamp leveling device........................................................................\
............ 5-80
Headlamp position ........................................................................\
....................... 5-75
Head-up display (HUD) ........................................................................\
............... 5-72
Heated steering wheel ........................................................................\
.................. 5-44
High Beam Assist (HBA) ........................................................................\
........... 5-76
High beam operation........................................................................\
.................... 5-75
Highway driving ........................................................................\
........................ 6-135
Highway Driving Assist (HDA) ........................................................................\
6-115
Hill-start assist control (HAC) ........................................................................\
..... 6-32
HomeLink
® system ........................................................................\
...................... 5-47
Hood ...................................................................\
................................................. 5-64

IndexI-8
Horn ...................................................................\
.................................................. 5-45
How to use this manual ........................................................................\
................. 1-4
Hyundai digital key........................................................................\
...................... 5-15 Digital key application ........................................................................\
............ 5-15
Digital key (smartphone) NFC function ......................................................... 5-15
Digital key (smartphone)..............................................\
................................... 5-16
Digital key (card key)................................................\
...................................... 5-23
I
If the engine doesn’t turn over or turns over slowly .............................................. 7-3
If the engine overheats ........................................................................\
................... 7-6
If the engine stalls at a crossroad or crossing ........................................................ 7-2
If the engine stalls while driving ........................................................................\
... 7-2
If the engine turns over normally but doesn’t start ................................................ 7-3
If the engine will not start ........................................................................\
.............. 7-3
If you have a flat tire while driving ....................................................................... 7-3
Ignition switch ........................................................................\
............................... 6-6 Key ignition switch ........................................................................\
................... 6-6
Engine Start/Stop button ........................................................................\
........... 6-9
Remote start ........................................................................\
............................ 6-12
Immobilizer system ........................................................................\
..................... 5-14
Improtant safety precautions........................................................................\
.......... 3-2
Always wear your seat belt ........................................................................\
....... 3-2
Restrain all children ........................................................................\
.................. 3-2
Air bag hazards ........................................................................\
......................... 3-2
Driver distraction ........................................................................\
...................... 3-2
Control your speed ........................................................................\
.................... 3-2
Keep your vehicle in safe condition .................................................................. 3-2
In case of emergency while driving ....................................................................... 7-2
Infotainment system........................................................................\
................... 5-152
AUX, USB and iPo
d® port ........................................................................\
..... 5-152
Antenna ................................................................\
......................................... 5-152
Steering wheel audio controls ....................................................................... 5-153
Bluetooth
® Wireless Technology hands-free ................................................. 5-154
Audio / Video / Navigation system ............................................................... 5-154
Blue Link
® center ........................................................................\
.................. 5-154
Inside rearview mirror ........................................................................\
................. 5-46

IndexI-10
L
Label Vehicle certification label ........................................................................\
........ 2-13
Tire specification and pressure label ............................................................... 2-14
Refrigerant label ........................................................................\
...................... 2-15
Lane change signals ........................................................................\
..................... 5-79
Lane Following Assist (LFA) ........................................................................\
.... 6-109
Lane Keeping Assist (LKA) ........................................................................\
........ 6-59
LCD display (Type A, B) ........................................................................\
............. 4-19 LCD display control ........................................................................\
................ 4-19
LCD display modes ........................................................................\
................. 4-20
Trip computer ........................................................................\
.......................... 4-31
LCD display (Type C) ........................................................................\
................. 4-34
LCD display control ........................................................................\
................ 4-34
View modes ........................................................................\
............................. 4-35
Utility view mode ........................................................................\
.................... 4-36
Option menu ........................................................................\
............................ 4-38
User settings mode ........................................................................\
.................. 4-39
LCD display messages ........................................................................\
................. 4-15
Shift to P or N to start engine ........................................................................\
.. 4-15
Shift to P ........................................................................\
.................................. 4-15
Low key battery.........................................................\
...................................... 4-15
Press brake pedal to start engine ..................................................................... 4-15
Key not in vehicle ........................................................................\
................... 4-16
Key not detected ........................................................................\
...................... 4-16
Press START button again ........................................................................\
...... 4-16
Press START button with key ........................................................................\
. 4-16
Battery discharging due to external electrical devices .................................... 4-16
Check BRAKE SWITCH fuse ........................................................................\
4-16
Door, Hood, Trunk open indicator .................................................................. 4-17
Sunroof open indicator ........................................................................\
............ 4-17
Lights mode ........................................................................\
............................. 4-17
Wiper mode ........................................................................\
............................. 4-18
Low pressure ........................................................................\
........................... 4-17

IndexI-12
Manual climate control system ........................................................................\
.. 5-118 Heating and air conditioning ........................................................................\
. 5-119
Mode selection ........................................................................\
...................... 5-120
Instrument panel vents ........................................................................\
.......... 5-122
Temperature control ........................................................................\
.............. 5-122
Air intake control ........................................................................\
.................. 5-122
Fan speed control ........................................................................\
.................. 5-123
Air conditioning ........................................................................\
.................... 5-123
System operation ........................................................................\
................... 5-124
System maintenance ........................................................................\
.............. 5-125
Air conditioning refrigerant label......................................\
............................ 5-126
Mirrors ................................................................\
................................................. 5-46
Inside rearview mirror ........................................................................\
............. 5-46
HomeLink
® system.................................................................\
......................... 5-47
Side view mirrors ........................................................................\
.................... 5-53
Adjusting the side view mirrors ...................................................................... 5-54
Folding the side view mirrors ........................................................................\
. 5-54
Reverse parking aid function ........................................................................\
.. 5-55
N
Navigation-based Smart Cruise Control (NSCC) .............................................. 6-105
O
Occupant Classification System (OCS) ............................................................... 3-47
Odometer ...............................................................\
................................................ 4-5
Oil (Engine) ........................................................................\
................................. 8-19
Outside temperature gauge ........................................................................\
............ 4-5
Owner maintenance ........................................................................\
....................... 8-5
P
Panoramic sunroof ........................................................................\
....................... 5-60
Parking lamp position ........................................................................\
.................. 5-75
Passenger’s front air bag ........................................................................\
.............. 3-39
Power brakes ........................................................................\
................................ 6-20
Power outlet ........................................................................\
............................... 5-146
Power window lock switch ........................................................................\
.......... 5-59
Pre-tensioner seat belt ........................................................................\
.................. 3-24 Retractor pretensioner ........................................................................\
............. 3-24

I
I-17
V
Vanity mirror lamp ........................................................................\
....................... 5-82
Vehicle break-in process ........................................................................\
................ 1-7
Vehicle certification label ........................................................................\
............ 2-13
Vehicle identification number (VIN) ................................................................... 2-13
Vehicle load limit ........................................................................\
....................... 6-139Tire loading information label ....................................................................... 6-139
Vehicle modification ........................................................................\
...................... 1-7
Vehicle Stability Management (VSM)................................................................. 6-31
Vehicle weight and luggage volume .................................................................... 2-10
W
Warning and indicator lights ........................................................................\
.......... 4-7
Air bag warning light ........................................................................\
................ 4-7
Seat belt warning light ........................................................................\
.............. 4-7
Parking brake & brake fluid warning light ....................................................... 4-8
Anti-lock Brake System (ABS) warning light .................................................. 4-9
Electronic brake force distribution (EBD) system warning light ...................... 4-9
Electric Power Steering (EPS) warning light .................................................... 4-9
AUTO HOLD indicator light ........................................................................\
.. 4-10
Electric Power Steering (EPS) warning light .................................................. 4-10
Malfunction Indicator lamp (MIL)......................................\
............................ 4-10
Charging system warning light ...................................................................... 4-11
Engine oil pressure warning light .................................................................. 4-11
Low fuel level warning light ........................................................................\
.. 4-11
Master warning light ........................................................................\
............... 4-11
Low tire pressure warning light ...................................................................... 4-11
Electronic stability control (ESC) indicator light....................\
........................ 4-11
Electronic stability control (ESC) OFF indicator light ................................... 4-13
Immobilizer indicator light ........................................................................\
..... 4-13
Turn signal indicator light ........................................................................\
....... 4-14
Headlamp warning light ........................................................................\
.......... 4-14
High beam indicator light...............................................\
................................. 4-14
High Beam Assist (HBA) indicator light ........................................................ 4-14
Light ON indicator light ........................................................................\
.......... 4-14
Forward Collision-Avoidance Assist warning light ........................................ 4-15
Lane Keeping Assist indicator light ................................................................ 4-15
Washer fluid ........................................................................\
................................. 8-25