2020 Hyundai Sonata Back seat

08
8-67
Cleaning the seat belt webbing
Clean the belt webbing with any
mild soap solution recommended for
cleaning upholstery or carpet. Follow
the instructions provided with the soap.
Do not bleach or re-dye the webbing
because this may weaken the seat belt.
Cleaning the interior window glass
If the interior glass surfaces of the
vehicle become hazy (that is, covered
with an oily, greasy or waxy film), they
should be cleaned with glass cleaner.
Follow the directions on the glass cleaner
container.
NOTICE
Do not scrape or scratch the inside of
the rear window. This may result in
damage to the rear window defroster
grid.
EMISSION CONTROL
SYSTEM
The emission control system of your
vehicle is covered by a written limited
warranty. Please see the warranty
information contained in the Owner’s
Handbook & Warranty Information
booklet 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 system
(2) Evaporative emission control system
(3) Exhaust emission control system
In order to ensure the proper function
of the emission control systems, it
is recommended that you have your
vehicle inspected and maintained
by an authorized HYUNDAI dealer in
accordance with the maintenance
schedule in this manual.
NOTICE
For the Inspection and Maintenance
Test (with Electronic Stability Control
(ESC) system)
• To prevent the vehicle from misfiring
during dynamometer testing, turn
the Electronic Stability Control
(ESC) system off by pressing the ESC
switch (ESC OFF light illuminated).
• After dynamometer testing is
completed, turn the ESC system back
on by pressing the ESC switch again.

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-14
Seat belts ........................................................................\
...................................... 3-19 Seat belt safety precautions ........................................................................\
..... 3-19
Seat belt warning light ........................................................................\
............ 3-20
Emergency locking retractor ........................................................................\
... 3-21
Convertible locking retractor ........................................................................\
.. 3-22
Rear center seat belt ........................................................................\
................ 3-23
Pre-tensioner seat belt ........................................................................\
............. 3-24
Additional seat belt safety precautions ........................................................... 3-26
Seat belt use during pregnancy ....................................................................... 3-26
Seat belt use and children ........................................................................\
........ 3-26
Transporting an injured person ....................................................................... 3-27
One person per belt ........................................................................\
................. 3-27
Do not lie down ........................................................................\
....................... 3-27
Care of seat belts ........................................................................\
..................... 3-28
Periodic inspection ........................................................................\
.................. 3-28
Keep belts clean and dry ........................................................................\
......... 3-28
When to replace seat belts ........................................................................\
....... 3-28
Seat warmers and air ventilation seats ................................................................. 3-14
Front seat warmers ........................................................................\
.................. 3-15
Front air ventilation seat..............................................\
.................................... 3-17
Seatback pocket ........................................................................\
............................. 3-9
Seats ..................................................................\
..................................................... 3-3
Safety precautions ........................................................................\
..................... 3-4
Front seat adjustment ........................................................................\
................ 3-5
Rear seat adjustment ........................................................................\
............... 3-10
Head restraints ........................................................................\
......................... 3-11
Front seat warmers ........................................................................\
.................. 3-14
Side air bags ........................................................................\
................................. 3-40
Side view mirrors ........................................................................\
......................... 5-53
Smart Cruise Control (SCC) ........................................................................\
........ 6-88
Smart key ........................................................................\
....................................... 5-7 Locking ................................................................\
............................................. 5-7
Unlocking ..............................................................\
............................................ 5-9
Trunk opening ........................................................................\
......................... 5-10
Mechanical key ........................................................................\
....................... 5-12
Battery replacement ........................................................................\
................ 5-13