2023 HYUNDAI TUCSON HYBRID fuel cap release

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Fuel Filler Door (Hybrid vehicle)
Opening the fuel filler door
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1. Turn the engine off.
2. Ensure driver’s door is unlocked.
3. Press the rear center edge of the fuel filler door.
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4. Pull the fuel filler door (1) outward to access the fuel tank cap.
5. To remove the fuel tank cap (2), turn it counterclockwise. You may hear a
hissing noise as the pressure inside
the tank equalizes.
6. Place the cap on the fuel filler door.
Information
The fuel filler door will unlock when
driver’s door is unlocked.
To unlock fuel filler door:
• Press the unlock button on your smart
key
• Press the central door unlock button on
armrest trim of driver’s door
• Pull the driver’s inside door handle
outward
The fuel filler door will lock when
driver’s door is locked.
To lock fuel filler door:
• Press the lock button on your smart key
• Press the Central Door lock button on
armrest trim of driver’s door

à All doors will automatically lock after
the vehicle speed exceeds 9 mph. Fuel
filler door is also locked when vehicle
speed exceeds 9 mph.
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 deicer fluid (do not use
radiator antifreeze) or move the vehicle to
a warm place and allow the ice to melt.

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• If a fire breaks out during refueling,
leave the vicinity of the vehicle, and
immediately contact 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 completely removing the cap.
• Always check that the fuel cap is
installed securely to prevent fuel
spillage in the event of an accident.
Information
Make sure to refuel your vehicle according
to the “Fuel Requirements” section in
suggested in chapter 1.
NOTICE
• Do not spill fuel on the exterior
surfaces of the vehicle. Any type of
fuel spilled on painted surfaces 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.
Fuel Filler Door (Plug-in hybrid
vehicle)
Opening the fuel filler door
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1. Turn the vehicle completely OFF. Do
not leave the vehicle with the ignition
in the ON position or with the engine
running. Doing so may cause the
check engine light to illuminate.
2. Push the fuel filler door open button.
NOTICE
If the fuel filler door does not open
because ice has formed around it, tap
lightly or push on the lid to break the
ice and release the lid. Do not pry on the
lid. If necessary, spray around the lid
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.

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3. Wait until the fuel tank is depressurized. This message
may appear in the LCD cluster
display while the fuel system is
depressurizing. The fuel door will
open after a few seconds.
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NOTICE
• It may take up to 20 seconds to open
fuel filler door.
• When the fuel filler door is frozen
and does not open after 20 seconds
at freezing temperature, slightly tap
the fuel filler door and then attempt
to open it.
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4. Pull the fuel filler door (1) out to fully
open.
5. To remove the fuel tank cap (2), turn it counterclockwise. You may hear a
hissing noise as the pressure inside
the tank equalizes.
6. Place the cap on the fuel filler door.
NOTICE
• It may take up to 20 seconds to
unlock fuel filler door.
• 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.

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Emergency fuel filler door release
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If the fuel filler door does not opendue
to battery discharge and failure
ofthe electrical wiring, follow the
belowprocedure.
1. Open the tailgate and remove the sidetrim upper cover (1).
2. Pull the emergency handle lightlyin the direction of the arrow, the fuelfiller
door will open.
If this occurs, open the fuel tank
cap slowly for the fuel tank may be
pressurized. If a hissing sound is heard,
wait until the sound stops, Then, remove
the fuel tank cap and refuel slowly.
Refueling quickly may cause the fuel to
overflow.
CAUTION
Do not pull the handle excessively,
otherwise the luggage compartment
area trim or release handle may be
damaged.

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WARNING
Recommended pressures must be
maintained for the best ride, vehicle
handling, and minimum tire wear.
Over-inflation or under-inflation
can reduce tire life, adversely
affect vehicle handling, and lead to
sudden tire failure that could result
in loss of vehicle control resulting in
an accident.
Severe under-inflation can lead
to severe heat build-up, causing
blowouts, tread separation and
other tire failures that can result in
the loss of vehicle control resulting
in an accident. This risk is much
higher on hot days and when
driving for long periods at high
speeds.
CAUTION
• Under-inflation results in
excessive wear, poor handling
and reduced fuel economy.
Wheel deformation is also
possible. Keep your tire pressures
at the proper levels. If a tire
frequently needs refilling, have
it checked by an authorized
HYUNDAI dealer.
• Over-inflation produces a harsh
ride, excessive wear at the center
of the tire tread, and a greater
possibility of damage from road
hazards.
Check Tire Inflation Pressure
Check your tires, including the spare
tire, once a month or more.
How to check
Use a good quality tire pressure
gauge to check tire pressure. You
can not tell if your tires are properly
inflated simply by looking at them.
Radial tires may look properly
inflated when they are under-
inflated.
Remove the valve cap from the tire
valve stem. Press the tire gauge
firmly onto the valve to get a
pressure measurement. If the cold
tire inflation pressure matches the
recommended pressure on the tire
and loading information label, no
further adjustment is necessary. If
the pressure is low, add air until you
reach the recommended pressure.
Make sure to put the valve caps
back on the valve stems. Without
the valve cap, dirt or moisture could
get into the valve core and cause
air leakage. If a valve cap is missing,
install a new one as soon as possible.
If you overfill the tire, release air by
pushing on the metal stem in the
center of the tire valve. Recheck the
tire pressure with the tire gauge. Be
sure to put the valve caps back on
the valve stems. Without the valve
cap, dirt or moisture could get into
the valve core and cause air leakage.
If a valve cap is missing, install a new
one as soon as possible.