coolant HYUNDAI SONATA LIMITED 2021 Owner's Manual

08
8-43
Curb Weight
This means the weight of a motor
vehicle with standard and optional
equipment including the maximum
capacity of fuel, oil and coolant, but
without passengers and cargo.
DOT Markings
A code molded into the sidewall
of a tire signifying that the tire
is in compliance with the U.S.
Department of Transportation motor
vehicle safety standards. The DOT
code includes the Tire Identification
Number (TIN), an alphanumeric
designator which can also identify
the tire manufacturer, production
plant, brand and date of production.
GVWR
Gross Vehicle Weight Rating
GAWR FRT
Gross Axle Weight Rating for the
Front Axle.
GAWR RR
Gross Axle Weight Rating for the
Rear axle.
Intended Outboard Sidewall
The side of an asymmetrical tire,
that must always face outward when
mounted on a vehicle.
Kilopascal (kPa)
The metric unit for air pressure.
Light truck (LT) tire
A tire designated by its manufacturer
as primarily intended for use on
lightweight trucks or multipurpose
passenger vehicles.Tire Terminology and Definitions
Air Pressure
The amount of air inside the tire
pressing outward on the tire. Air
pressure is expressed in pounds per
square inch (psi) or kilopascal (kPa).
Accessory Weight
This means the combined weight
of optional accessories. Some
examples of optional accessories
are automatic transmission, power
seats, and air conditioning
.
Aspect Ratio
The relationship of a tire’s height to
its width.
Belt
A rubber coated layer of cords that
is located between the plies and the
tread. Cords may be made from steel
or other reinforcing materials.
Bead
The tire bead contains steel wires
wrapped by steel cords that hold the
tire onto the rim.
Bias Ply Tire
A pneumatic tire in which the plies
are laid at alternate angles less than
90 degrees to the centerline of the
tread.
Cold Tire Pressure
The amount of air pressure in a tire,
measured in pounds per square inch
(psi) or kilopascals (kPa) before a tire
has built up heat from driving.

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-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