2018 Hyundai Sonata fuel

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Convenient features of your vehicle
Battery replacement
If the Smart Key is not working prop-
erly, try replacing the battery with a
new one.
Battery Type: CR2032
To replace the battery:
1. Pry open the rear cover of thesmart key.
2. Remove the old battery and insert the new battery.
3. Reinstall the rear cover of the smart key. If you suspect your smart key might
have sustained some damage, or
you feel your smart key is not work-
ing correctly, contact an authorized
HYUNDAI dealer.
Information
An inappropriately disposed
battery can be harmful to the
environment and human
health. Dispose the battery
according to your local law(s)
and regulation(s).
Immobilizer System
The immobilizer system protects
your vehicle from theft. If an improp-
erly coded key (or other device) is
used, the engine's fuel system is dis-
abled.
When the ignition switch is placed in
the ON position, the immobilizer sys-
tem indicator should come on briefly,
then go off. If the indicator starts to
blink, the system does not recognize
the coding of the key.
Place the ignition switch to the
LOCK/OFF position, then place the
ignition switch to the ON position
again.
The system may not recognize your
key’s coding if another immobilizer
key or other metal object (i.e., key
chain) is near the key. The engine
may not start because the metal may
interrupt the transponder signal from
transmitting normally.
If the system repeatedly does not
recognize the coding of the key, it is
recommended that you contact your
HYUNDAI dealer.
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3
Use your interior rearview mirror or
direct observation to determine the
actual distance of following vehicles
when changing lanes.Blind spot mirror
The Blind Spot Mirror (BSM) is a
supplemental mirror that reduces the
driver’s blind spot by showing the
rear side area of the vehicle. The
blind spot mirror is equipped on the
left-hand side view mirror.Do not clean the mirror with harsh
abrasives, fuel or other petroleum
based cleaning products.
NOTICE
Do not adjust or fold the side
view mirrors while driving. This
may cause loss of vehicle con-
trol resulting in an accident.
WARNING
Do not scrape ice off the mir-
ror face; this may damage the
surface of the glass.
If the mirror is jammed with
ice, do not adjust the mirror by
force. Use an approved spray
de-icer (not radiator antifreeze)
spray, or a sponge or soft cloth
with very warm water, or move
the vehicle to a warm place
and allow the ice to melt.
CAUTION
OLF044477N
OLF044478N
Always check the road condi-
tion while driving for unex-
pected situations even though
the vehicle is equipped with a
blind spot mirror.
The blind spot mirror is a
device made for convenience.
Do not solely rely on the mir-
ror but always pay attention to
traffic around you.
WARNING

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Convenient features of your vehicle
3
Detecting area
The Smart Trunk operates with awelcome alert if the smart key is
detected within 20~40 inches
(50~100 cm) from the trunk.
The alert stops at once if the smart key is positioned outside the
detecting area during the Detect
and Alert stage.
Information
• The Smart Trunk function will notwork if any of the following occurs:
- The smart key is close to a radiotransmitter 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 cellular
phone.
- Another vehicle 's smart key is being
operated close to your vehicle.
• The detecting range may decrease or increase when :
- One side of the tire is raised toreplace a tire or to inspect the vehi-
cle.
- The vehicle is 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.
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Convenient features of your vehicle
3. Pull the fuel filler door (1) out to fully open.
4. To remove the fuel tank cap (2), turn it counterclockwise. You may
hear a hissing noise as the pres-
sure inside the tank equalizes.
5. Place the cap on the fuel filler door.
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 itclockwise until it "clicks" one time.
2. Close the fuel filler door until it is latched securely.i
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3
(Continued)
Do not get back into a vehicle
once you have begun refuel-
ing. You can generate a build-
up of static electricity by
touching, rubbing or sliding
against any item or fabric
capable of producing static
electricity. Static electricity
discharge can ignite fuel
vapors causing a fire. If you
must re-enter the vehicle, you
should once again eliminate
potentially dangerous static
electricity discharge by touch-
ing a metal part of the vehicle,
away from the fuel filler neck,
nozzle or other gasoline
source, with your bare hand.
When using an approved
portable fuel container, be
sure to place the container on
the ground prior to refueling.
Static electricity discharge
from the container can ignite
fuel vapors causing a fire.(Continued)
(Continued)Once refueling has begun,
contact between your bare
hand and the vehicle should
be maintained until the filling
is complete.
Use only approved portable
plastic fuel containers designed
to carry and store gasoline.
When refueling, always move
the shift lever to the P (Park)
position, 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
vapors causing a fire.
Do not use matches or a
lighter and do not smoke or
leave a lit cigarette in your
vehicle while at a gas station,
especially during refueling.
Do not over-fill or top-off your
vehicle tank, which can cause
gasoline spillage. (Continued)
Gasoline 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 refueling, note the
location of the Emergency
Gasoline 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.
Do not use cellular phones
while refueling. Electric cur-
rent and/or electronic interfer-
ence from cellular phones can
potentially ignite fuel vapors
and cause a fire.(Continued)
WARNING

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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 exteriorsurfaces 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 door release
If the fuel filler door does not open
using the remote fuel filler door
release button, you can open it man-
ually. Pull the release located on the
left side of the trunk compartment.
NOTICE
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(Continued)
If a fire breaks out during refu-
eling, 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.
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.

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3
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IN
N S
ST
T R
R U
U M
M E
EN
N T
T
C
C L
LU
U S
ST
T E
ER
R
1. Tachometer
2. Speedometer
3. Engine coolant temperature gauge
4. Fuel gauge
5. Warning and indicator lights
6. LCD display (including Trip computer)
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■
■
Type A
The actual cluster in the vehicle may dif-
fer from the illustration.
■
■Type B

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Convenient features of your vehicle
1. Tachometer
2. Speedometer
3. Engine coolant temperature gauge
4. Fuel gauge
5. Warning and indicator lights
6. LCD display (including Trip computer)
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■
■Type C
The actual cluster in the vehicle may dif-
fer from the illustration.
■
■Type D