2015 Hyundai Sonata fuel cap

FUEL REQUIREMENTS
F8
Introduction
Petrol engine
Unleaded
Your new vehicle is designed to use
only unleaded fuel having an Octane
Rating of RON (Research Octane
Number) 91 / AKI (Anti-Knock Index)
87 or higher. (Do not use methanol
blended fuels.)
Your new vehicle is designed to
obtain maximum performance with
UNLEADED FUEL, as well as min-
imise exhaust emissions and spark
plug fouling.
Petrol containing ethanol
Ethanol [E-10], a mixture of petrol
and ethanol (also known as grain
alcohol), is marketed along with or
instead of leaded or unleaded petrol.
Do not use petrol containing more
than 10% ethanol, and do not use
petrol or ethanol containing any
methanol. Either of these fuels may
cause drivability problems and dam-
age to the fuel system, engine con-
trol system and emission control sys-
tem.
Discontinue using ethanol of any
kind if driveability problems occur.
Vehicle damage or driveability prob-
lems may not be covered by the
manufacturer’s warranty if they result
from the use of:
1. Petrol containing more than 10%
ethanol.
2. Petrol or ethanol containing
methanol.
3. Leaded fuel or leaded ethanol.
•Do not "top off" after the noz-
zle automatically shuts off
when refuelling.
•Always check that the fuel cap
is installed securely to pre-
vent fuel spillage in the event
of an accident.
WARNING
NEVER USE LEADED FUEL. The
use of leaded fuel is detrimental
to the catalytic converter and
will damage the engine control
system’s oxygen sensor and
affect emission control.
Never add any fuel system
cleaning agents to the fuel tank
other than what has been speci-
fied. (We recommend that you
consult an authorised HYUNDAI
dealer for details.)
CAUTION

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Convenient features of your vehicle
3
Information
• The Smart Boot function will not
work if any of the following occurs:
- The smart key is close to a radio
transmitter such as a radio station
or an airport which can interfere
with normal operation of the
transmitter.
- The smart key is near a mobile two
way radio system or a mobile
phone.
- Another vehicle's smart key is
being operated close to your vehi-
cle.
• The detecting range may decrease
or increase when :
- One side of the tyre is raised to
replace a tyre or to inspect the
vehicle.
- The vehicle is slantingly parked on
a slope or unpaved road, etc.
Fuel filler door
Opening the fuel filler door
The fuel filler door must be opened
from inside the vehicle by pushing
the fuel filler door opener button.
1. Turn the engine off.
2. Push the fuel filler door opener
button.3. Pull the fuel filler door (1) out to
fully open.
4. To remove the fuel tank cap (2),
turn it anticlockwise. You may hear
a hissing noise as the pressure
inside the tank equalises.
5. Place the cap on the fuel filler
door.
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OLF044051R

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Convenient features of your vehicle
Information
If the fuel filler door does not open
because ice has formed around it, tap
lightly or push on the door to break
the ice and release the door. Do not
pry on the door. If necessary, spray
around the door with an approved de-
icer fluid (do not use radiator anti-
freeze) or move the vehicle to a warm
place and allow the ice to melt.
Closing the fuel filler door
1. To install the fuel tank cap, turn it
clockwise until it “clicks” one time.
2. Close the fuel filler door until it is
latched securely.i
Petrol is highly flammable and
explosive. Failure to follow
these guidelines may result in
SERIOUS INJURY or DEATH:
•Read and follow all warnings
posted at the gas station.
•Before refuelling, note the
location of the Emergency
Petrol Shut-Off, if available, at
the gas station.
•Before touching the fuel noz-
zle, you should eliminate the
potential build-up of static
electricity by touching a metal
part of the vehicle, a safe dis-
tance away from the fuel filler
neck, nozzle, or other gas
source, with your bare hand.
(Continued)
WARNING
(Continued)
•Do not use mobile phones
whilst refuelling. Electric cur-
rent and/or electronic interfer-
ence from mobile phones can
potentially ignite fuel vapours
and cause a fire.
•Do not get back into a vehicle
once you have begun refu-
elling. You can generate a
build-up of static electricity by
touching, rubbing or sliding
against any item or fabric capa-
ble of producing static electric-
ity. Static electricity discharge
can ignite fuel vapours causing
a fire. If you must re-enter the
vehicle, you should once again
eliminate potentially danger-
ous static electricity discharge
by touching a metal part of the
vehicle, away from the fuel filler
neck, nozzle or other petrol
source, with your bare hand.
(Continued)

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Convenient features of your vehicle
3
(Continued)
•When refuelling, always move
the shift lever to the P (Park)
position (for automatic
transaxle) or first gear or R
(Reverse, for manual
transaxle), set the parking
brake, and place the ignition
switch to the LOCK/OFF posi-
tion. Sparks produced by
electrical components related
to the engine can ignite fuel
vapours causing a fire.
•When using an approved
portable fuel container, be sure
to place the container on the
ground prior to refuelling. Static
electricity discharge from the
container can ignite fuel
vapours causing a fire. Once
refuelling has begun, contact
between your bare hand and
the vehicle should be main-
tained until the filling is com-
plete.
(Continued)
(Continued)
•If pressurized fuel sprays out,
it can cover your clothes or
skin and thus subject you to
the risk of fire and burns.
Always remove the fuel cap
carefully and slowly. If the cap
is venting fuel or if you hear a
hissing sound, wait until the
condition stops before com-
pletely removing the cap.
•Always check that the fuel cap
is installed securely to pre-
vent fuel spillage in the event
of an accident.
(Continued)
•Use only approved portable
plastic fuel containers designed
to carry and store petrol.
•Do not use matches or a
lighter and do not smoke or
leave a lit cigarette in your
vehicle whilst at a gas station,
especially during refuelling.
•Do not over-fill or top-off your
vehicle tank, which can cause
petrol spillage.
•If a fire breaks out during refu-
elling, leave the vicinity of the
vehicle, and immediately con-
tact the manager of the gas
station and then contact the
local fire department. Follow
any safety instructions they
provide.
(Continued)

3-52
Convenient features of your vehicle
Information
Make sure to refuel your vehicle
according to the "Fuel Requirements"
suggested in the Introduction chapter.
• Do not spill fuel on the exterior
surfaces of the vehicle. Any type
of fuel spilled on painted sur-
faces may damage the paint.
• If the fuel filler cap requires
replacement, use only a genuine
HYUNDAI cap or the equivalent
specified for your vehicle. An
incorrect fuel filler cap can
result in a serious malfunction
of the fuel system or emission
control system.
Emergency fuel filler lid
release
If the fuel filler lid does not open
using the remote fuel filler lid
release, you can open it manually by
pulling the handle outward slightly.Do not pull the handle excessive-
ly, otherwise the luggage area trim
or release handle may be dam-
aged.
NOTICE
NOTICE
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3-56
Convenient features of your vehicle
Engine Coolant Temperature
gauge
This gauge indicates the tempera-
ture of the engine coolant when the
ignition switch or Engine Start/Stop
button is in the ON position.If the gauge pointer moves
beyond the normal range area
toward the "H" position, it indi-
cates overheating that may dam-
age the engine.
Do not continue driving with an
overheated engine. If your vehicle
overheats, refer to "If the Engine
Overheats" in chapter 6.
Fuel Gauge
This gauge indicates the approxi-
mate amount of fuel remaining in the
fuel tank.
NOTICE
Never remove the radiator cap
when the engine is hot. The
engine coolant is under pressure
and could cause severe burns.
Wait until the engine is cool
before adding coolant to the
reservoir.
WARNING
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■Type A■Type B
OLF044108
■Type A■Type B

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Convenient features of your vehicle
3
Information
• The fuel tank capacity is given in
chapter 8.
• The fuel gauge is supplemented by a
low fuel warning light, which will
illuminate when the fuel tank is
nearly empty.
• On inclines or curves, the fuel gauge
pointer may fluctuate or the low fuel
warning light may come on earlier
than usual due to the movement of
fuel in the tank.
Avoid driving with an extremely
low fuel level. Running out of fuel
could cause the engine to misfire
damaging the catalytic converter.
Outside Temperature Gauge
This gauge indicates the current out-
side air temperature by 1°C (1°F).
- Temperature range : -40°C ~ 60°C
(-40°F ~ 140°F)
The outside temperature on the dis-
play may not change immediately.
The temperature unit (from °C to °F
or from °F to °C) can be changed as
follows:
The temperature unit of the instru-
ment cluster and the climate control
display will change at the same time.NOTICE
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Fuel Gauge
Running out of fuel can expose
vehicle occupants to danger.
You must stop and obtain addi-
tional fuel as soon as possible
after the warning light comes
on or when the gauge indicator
comes close to the "E (Empty)"
level.
WARNING
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7-11
7
Maintenance
NORMAL MAINTENANCE SCHEDULE (CONT.)
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*
4: For your convenience, it can be replaced prior to it's interval when you do maintenance of other items.
*5: Inspect for excessive valve noise and/or engine vibration and adjust if necessary. We recommend that the system be checked
by an authorised HYUNDAI dealer.
*
6: The fuel filter is considered to be maintenance free but periodic inspection is recommended for this maintenance schedule
depends on fuel quality. If there are some important matters like fuel flow restriction, surging, loss of power, hard starting prob-
lems etc, we recommend replacing the fuel filter immediately regardless of maintenance schedule and consulting with an autho-
rised HYUNDAI dealer for details.
Number of months or driving distance, whichever comes first
Months1224364860728496
Km×1,000153045607590105120
Spark plugs *4Theta 2.4 GDIReplace every 150,000 km or 120 months
Theta 2.0 T-GDIReplace every 75,000 km or 60 months
Valve clearance *5I
Vapour hose and fuel filler capII
Fuel tank air filter (if equipped)II
Vacuum hoseIIIIIIII
Fuel filter *6RR
Fuel lines, hoses and connectionsII
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM