2021 HYUNDAI SONATA check

Maintenance
8-62
„„Map lamp
ODN8A089034
„„Room lamp
OLF077071
Map lamp and Room lamp (LED type)
If the LED lamp (1) does not operate, have the system checked by an authorized
HYUNDAI dealer.
The LED lamps cannot be replaced as a single unit because it is an integrated unit. The
LED lamps has to be replaced with the unit.
A skilled technician should check or repair the LED lamp, for it may damage related
parts of the vehicle.

Maintenance
8-70
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 Control System Including Onboard
Refueling Vapor Recovery
(ORVR)
The Evaporative Emission Control System
is designed to prevent fuel vapors from
escaping into the atmosphere. The
ORVR system is designed to allow the
vapors from the fuel tank to be loaded
into a canister while refueling at the gas
station, preventing the escape of fuel
vapors into the atmosphere.
Canister
Fuel vapors generated inside the fuel
tank are absorbed and stored in the
onboard canister. When the engine is
running, the fuel vapors absorbed in the
canister are drawn into the surge tank
through the purge control solenoid valve.
Purge Control Solenoid Valve (PCSV)
The purge control solenoid valve
is controlled by the Engine Control
Module (ECM); when the engine coolant
temperature is low during idling, the
PCSV closes so that evaporated fuel
is not taken into the engine. After the
engine warms-up during ordinary
driving, the PCSV opens to introduce
evaporated fuel to the engine.
3. Exhaust Emission Control System
The Exhaust Emission Control System is
a highly effective system which controls
exhaust emissions while maintaining
good vehicle performance.
When the engine starts or fails to start,
excessive attempts to restart the engine
may cause damage to the emission
system.
Engine exhaust (carbon monoxide)
precautions
• Carbon monoxide can be present
with other exhaust fumes. If you smell
exhaust fumes of any kind in your
vehicle, drive with all the windows
fully open. Have your vehicle checked
and repaired immediately.
WARNING
Engine exhaust gases contain carbon
monoxide (CO). Though colorless and
odorless, it is dangerous and could be
lethal if inhaled. Follow the instructions
on this page to avoid CO poisoning.
WARNING
CALIFORNIA PROPOSITION 65
WARNING
Engine exhaust and a wide variety of
automobile components and parts,
including components found in the
interior furnishings in a vehicle, contain
or emit chemicals known to the State
of California to cause cancer and
birth defects and reproductive harm.
In addition, certain fluids contained
in vehicles and certain products of
component wear contain or emit
chemicals known to the State of
California to cause cancer and birth
defects or other reproductive harm.

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

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

IndexI-16
Tires and wheels ........................................................................\
.................. 2-9, 8-34
Tire care

........................................................................\
................................... 8-34
Recommended cold tire inflation pressures


....................................................8-34
Check tire inflation pressure


........................................................................\
... 8-35
Tire rotation
........................................................................\
............................. 8-36
Wheel alignment and tire balance


................................................................... 8-37
Tire replacement


........................................................................\
...................... 8-38
Wheel replacement


........................................................................\
.................. 8-39
Tire maintenance


........................................................................\
..................... 8-39
Tire traction


........................................................................\
............................. 8-39
Tire sidewall labeling


........................................................................\
.............. 8-39
Tire terminology and definitions
..................................................................... 8-43
All

Season Tires ........................................................................\
...................... 8-46
Summer Tires
........................................................................\
.......................... 8-46
Snow Tires
........................................................................\
............................... 8-46
Radial-Ply Tires
........................................................................\
....................... 8-46
Low Aspect Ratio Tires
........................................................................\
........... 8-47
Towing
........................................................................\
......................................... 7-18
Trailer towing


........................................................................\
............................ 6-151
Trip computer


........................................................................\
.............................. 4-31
Average fuel economy
........................................................................\
............. 4-31
Instant fuel economy


........................................................................\
............... 4-31
Accumulated Info display
........................................................................\
....... 4-32
Driving Info display


........................................................................\
................ 4-32
Digital speedometer


........................................................................\
................ 4-33
Auto Stop accumulated time


........................................................................\
... 4-33
Smart shift


........................................................................\
............................... 4-33
Trunk
........................................................................\
............................................ 5-65
Turn signals........................................................................\
.................................. 5-79
U
USB charger
........................................................................\
............................... 5-147