HYUNDAI SONATA 2021 Owners Manual

I
I-3
Mode selection ........................................................................\
...................... 5-130
Instrument panel vents

........................................................................\
.......... 5-132
Temperature control


........................................................................\
.............. 5-132
Air intake control


........................................................................\
.................. 5-133
Fan speed control


........................................................................\
.................. 5-134
Air conditioning


........................................................................\
.................... 5-134
OFF mode........................................................................\
.............................. 5-134
System operation


........................................................................\
................... 5-135
System maintenance


........................................................................\
.............. 5-136
Air conditioning refrigerant label.................................................................. 5-137
Automatic transmission


........................................................................\
............... 6-13
Transmission ranges
........................................................................\
................ 6-14
Paddle shifter (manual shift mode)


................................................................. 6-19
Shift-lock system


........................................................................\
..................... 6-15
Good driving practices


........................................................................\
............ 6-18
Parking
........................................................................\
.................................... 6-16
Automatic ventilation


........................................................................\
................ 5-143
AUX, USB and iPod
® port ........................................................................\
........ 5-152
B
Battery


........................................................................\
......................................... 8-31
Battery recharging

........................................................................\
................... 8-32
Battery saver function


........................................................................\
.................. 5-79
Before driving


........................................................................\
................................ 6-5
Blind-Spot Collision Warning (BCW)
................................................................. 6-67
Blind-Spot Collision-Avoidance Assist (BCA)
................................................... 6-67
Blind-Spot View Monitor (BVM)
....................................................................... 6-94
Blue Link
® center ........................................................................\
....................... 5-154
Bluetooth® Wireless Technology hands-free ..................................................... 5-154
Brake fluid

........................................................................\
................................... 8-24
Brake system
........................................................................\
................................ 6-20
Power brakes

........................................................................\
........................... 6-20
Disc brakes wear indicator


........................................................................\
...... 6-20
Electronic Parking Brake (EPB)


..................................................................... 6-21
Auto Hold
........................................................................\
................................ 6-24
Anti-lock Brake System (ABS)


....................................................................... 6-27
Electronic Stability Control (ESC).................................................................. 6-29
Vehicle Stability Management (VSM)


............................................................ 6-31
Good braking practices


........................................................................\
........... 6-32

Index
I-4
Bulb replacement ........................................................................\
.........................8-57
Headlamp

........................................................................\
................................ 8-57
Parking lamp


........................................................................\
........................... 8-57
Daytime running light
........................................................................\
............. 8-57
T

urn signal lamp

........................................................................\
...................... 8-57
Cornering lamp ........................................................................\
....................... 8-57
Side marker


........................................................................\
............................. 8-57
Auxiliary lamp


........................................................................\
........................ 8-57
Side repeater lamp


........................................................................\
................... 8-58
Rear combination light bulb


........................................................................\
.... 8-58
High mounted stop lamp


........................................................................\
......... 8-60
License plate light


........................................................................\
.................. 8-60
Interior light


........................................................................\
........................... 8-61
Bulb wattage


........................................................................\
.................................. 2-8
C
California perchlorate notice


........................................................................\
....... 8-72
Capacities (Lubricants)


........................................................................\
................ 2-11
Care Tire care


........................................................................\
................................... 8-34
Exterior care


........................................................................\
............................ 8-63
Interior care


........................................................................\
............................. 8-67
Center console storage


........................................................................\
............... 5-144
Central door lock/unlock switch


........................................................................\
.. 5-33
Certification label


........................................................................\
........................ 2-13
Check tire inflation pressure


........................................................................\
........ 8-35
Child restraint system (CRS)


........................................................................\
....... 3-29
Selecting a child restraint system (CRS)


.........................................................3-30
Rearward-facing child restraint system


...........................................................3-30
Forward-facing child restraint system


.............................................................3-31
Booster seats........................................................................\
............................ 3-31
Installing a child restraint system (CRS)


........................................................3-31
Lower anchors and tether for Children (LATCH System)
..............................3-32
Lower anchors

........................................................................\
........................ 3-33
T

ether anchors

........................................................................\
......................... 3-34
Lap/shoulder belt


........................................................................\
..................... 3-35
Child-protector rear door lock


........................................................................\
..... 5-35
Climate control air filter


........................................................................\
.............. 8-28

I
I-5
Clock ........................................................................\
..........................................5-150
Clothes hanger

........................................................................\
........................... 5-150
Crankcase emission control system
..................................................................... 8-70
Cup holder

........................................................................\
................................. 5-145
Curtain air bags


........................................................................\
............................ 3-41
D
Daytime running light (DRL)


........................................................................\
...... 5-74
Declaration of conformity........................................................................\
............ 6-79 The radio frequency components (Rear Corner Radar) complies


...................6-79
Defroster
........................................................................\
.................................... 5-142
Dimensions
........................................................................\
.................................... 2-7
Door locks
........................................................................\
.................................... 5-31
Central door lock/unlock switch


..................................................................... 5-33
Child-protector rear door lock


........................................................................\
. 5-35
Auto door lock/unlock features
....................................................................... 5-34
Operating door locks from outside the vehicle


...............................................5-31
Operating door locks from inside the vehicle


.................................................5-32
Rear Occupant Alert (ROA) system
................................................................ 5-36
Vehicle Auto-Shut Off Function
..................................................................... 5-37
Drive mode integrated control system


................................................................ 6-37
Drive mode


........................................................................\
.............................. 6-37
Driver Attention Warning (DAW)
...................................................................... 6-86
Leading vehicle departure alert


....................................................................... 6-91
Driver position memory system........................................................................\
... 5-39 Storing positions into memory


........................................................................\
5-39
Easy access function


........................................................................\
............... 5-41
Driver’s air bag
........................................................................\
............................ 3-39
Driving at night


........................................................................\
.......................... 6-141
Driving in flooded areas


........................................................................\
............ 6-142
Driving in the rain


........................................................................\
...................... 6-141
E
Electric Power Steering (EPS)


........................................................................\
..... 5-42
Electronic Stability Control (ESC)


...................................................................... 6-29
Emergency towing


........................................................................\
....................... 7-19
Emergency trunk safety release


........................................................................\
... 5-66

Index
I-6
Emission control system ........................................................................\
.............. 8-69
Crankcase emission control system

................................................................ 8-70
Evaporative emission control System


.............................................................8-70
Exhaust emission control system
.................................................................... 8-70
Engine compartment


........................................................................\
.............. 2-6, 8-3
Engine compartment panel fuse replacement


......................................................8-50
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


.................................................................. 8-70
Event Data Recorder (EDR)


........................................................................\
.......... 1-8
Exhaust emission control system


........................................................................\
. 8-70
Explanation of scheduled maintenance items


......................................................8-16
Exterior care........................................................................\
................................. 8-63
Exterior features........................................................................\
........................... 5-64 Hood
........................................................................\
........................................ 5-64
Trunk

........................................................................\
....................................... 5-65
Emer

gency 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 ........................................................................\
..................... 3-5
Manual 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
........................................................................\
............................................ 8-48
Instrument panel fuse replacement.................................................................. 8-49
Engine compartment panel fuse replacement
................................................. 8-50
Fuse/relay panel description


........................................................................\
.... 8-51
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


........................................................................\
.... 6-140
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
........................................................................\
........................ 6-142
Highway Driving Assist (HDA)
........................................................................\
6-122
Hill-start assist control (HAC)


........................................................................\
..... 6-32
HomeLink
® system ........................................................................\
...................... 5-47
Hood

........................................................................\
............................................ 5-64

Index
I-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

I
I-9
Instrument cluster ........................................................................\
.......................... 4-2
Instrument cluster illumination
........................................................................\
. 4-3
Gauges and meters


........................................................................\
.................... 4-3
Transmission shift indicator


........................................................................\
...... 4-6
Warning and indicator lights


........................................................................\
..... 4-7
LCD display messages


........................................................................\
............ 4-15
LCD display (Type A, B)
........................................................................\
........ 4-19
LCD display (Type C)
........................................................................\
............. 4-34
Instrument panel fuse replacement


...................................................................... 8-49
Instrument panel overview


........................................................................\
............ 2-5
Interior care


........................................................................\
.................................. 8-67
Interior features


........................................................................\
.......................... 5-145
Cup holder

........................................................................\
............................. 5-145
Sunvisor........................................................................\
................................. 5-146
Power outlet


........................................................................\
.......................... 5-146
USB charger
........................................................................\
.......................... 5-147
Wireless cellular phone charging system

......................................................5-148
Clock


........................................................................\
..................................... 5-150
Clothes hanger


........................................................................\
....................... 5-150
Floor mat anchor(s)


........................................................................\
............... 5-151
Interior lights


........................................................................\
............................... 5-80
Front lamps........................................................................\
.............................. 5-81
Rear lamps


........................................................................\
............................... 5-81
Luggage compartment lamp


........................................................................\
.... 5-82
Vanity mirror lamp


........................................................................\
.................. 5-82
Interior overview


........................................................................\
........................... 2-4
ISG (Idle Stop and Go) system
........................................................................\
.... 6-33
J
Jack and tools
........................................................................\
............................... 7-12
Jump starting


........................................................................\
.................................. 7-4
K
Key ignition switch


........................................................................\
........................ 6-6

Index
I-10
L
LabelVehicle certification label


........................................................................\
........ 2-13
Tire specification and pressure label


............................................................... 2-14
Refrigerant label


........................................................................\
...................... 2-15
Lane change signals


........................................................................\
..................... 5-79
Lane Following Assist (LFA)
........................................................................\
.... 6-116
Lane Keeping Assist (LKA)

........................................................................\
........ 6-59
LCD display (T

ype 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

I
I-11
LCD display modes ........................................................................\
.....................4-20
T rip computer mode

........................................................................\
................ 4-21
Turn By Turn (TBT) mode
........................................................................\
...... 4-21
Driving assist mode


........................................................................\
................. 4-21
Master warning mode


........................................................................\
.............. 4-22
User settings mode


........................................................................\
.................. 4-22
Light


........................................................................\
............................................. 5-74
AUTO headlamp position


........................................................................\
....... 5-74
Daytime running light (DRL)........................................................................\
.. 5-74
Parking lamp position


........................................................................\
............. 5-75
Headlamp position


........................................................................\
.................. 5-75
High beam operation


........................................................................\
............... 5-75
High Beam Assist (HBA)


........................................................................\
....... 5-76
Turn signals
........................................................................\
............................. 5-79
Lane change signals


........................................................................\
................ 5-79
Battery saver function
........................................................................\
............. 5-79
Headlamp delay function


........................................................................\
........ 5-79
Headlamp leveling device


........................................................................\
....... 5-80
Light bulbs


........................................................................\
................................... 8-57
Lubricants and capacities


........................................................................\
............. 2-11
Luggage compartment lamp


........................................................................\
........ 5-82
M
Maintenance Maintenance services
........................................................................\
................ 8-4
Owner maintenance


........................................................................\
................... 8-5
Scheduled maintenance services


....................................................................... 8-7
Normal maintenance schedule


.................................................................... 8-8,12
Maintenance under severe usage conditions


..............................................8-11,15
Explanation of scheduled maintenance items


.................................................8-16
Tire maintenance


........................................................................\
..................... 8-39
Maintenance services


........................................................................\
..................... 8-4

Index
I-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)


..............................................6-112
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