2023 HYUNDAI TUCSON HYBRID radiator

Convenience Features5-80
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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.
OAEPHQ049832LOAEPHQ049832L
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.

07
7-31
Information
This device complies with Part 15 of the
FCC rules.
Operation is subject to the following two
conditions:
1. This device may not cause harmful
interference.
2. This device must accept any
interference received, including
interference that may cause undesired
operation.
3. Changes or modifications not expressly
approved by the party responsible
for compliance could void the user's
authority to operate the device.
Information
Radio frequency radiation exposure
information:
This equipment complies with FCC
radiation exposure limits set forth for an
uncontrolled environment.
This equipment should be installed and
operated with minimum distance of 8 in.
(20 cm) between the radiator (antenna)
and your body.
This transmitter must not be co-located or
operating in conjunction with any other
antenna or transmitter.

07
7-51
Information
This device complies with Part 15 of the
FCC rules.
Operation is subject to the following three
conditions:
1. This device may not cause harmful
interference, and
2. This device must accept any
interference received, including
interference that may cause undesired
operation.
3. Changes or modifications not expressly
approved by the party responsible
for compliance could void the user's
authority to operate the device.
Information
Radio frequency radiation exposure
information:
This equipment complies with FCC
radiation exposure limits set forth for an
uncontrolled environment.
This equipment should be installed and
operated with minimum distance of 8 in.
(20 cm) between the radiator (antenna)
and your body.
This transmitter must not be co-located or
operating in conjunction with any other
antenna or transmitter.

Driver Assistance System7-94
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• When a vehicle in front of you merges out of the lane, Smart Cruise Control
may not immediately detect the new
vehicle that is now in front of you.
Always pay attention to road and
driving conditions while driving.
OTM058124OTM058124
• Always look out for pedestrians when your vehicle is maintaining a distance
with the vehicle ahead.
Information
This device complies with Part 15 of the
FCC rules.
Operation is subject to the following three
conditions:
1. This device may not cause harmful
interference, and
2. This device must accept any
interference received, including
interference that may cause undesired
operation.
3. Changes or modifications not expressly
approved by the party responsible
for compliance could void the user's
authority to operate the device.
Information
Radio frequency radiation exposure
information:
This equipment complies with FCC
radiation exposure limits set forth for an
uncontrolled environment.
This equipment should be installed and
operated with minimum distance of 8 in.
(20 cm) between the radiator (antenna)
and your body.
This transmitter must not be co-located or
operating in conjunction with any other
antenna or transmitter.

07
7-101
• After you pass through a tollgate on a
highway (or motorway), Navigation-
based Smart Cruise Control will
operate based on the first lane. If
you enter one of the other lanes,
Navigation-based Smart Cruise
Control may not operate properly.
• The vehicle will accelerate if the
driver depresses the accelerator
pedal while Navigation-based Smart
Cruise Control is operating, and
the function will not decelerate the
vehicle. However, if the accelerator
pedal is depressed insufficiently, the
vehicle may decelerate.
• If the driver accelerates and
releases the accelerator pedal while
Navigation-based Smart Cruise
Control is operating, the vehicle may
not decelerate sufficiently or may
rapidly decelerate to a safe speed.
• If the curve is too large or too small,
Navigation-based Smart Cruise
Control may not operate.
Information
• The time gap could occur between
the navigation’s guidance and when
Navigation-based Smart Cruise Control
operation starts and ends.
• The speed information on the cluster
and navigation may differ.
• Even if you are driving at a speed lower
than Smart Cruise Control set speed,
acceleration may be limited by the
curve sections ahead.
• If Navigation-based Smart Cruise
Control is operating while leaving the
main road to enter an interchange,
junction, rest area, etc., the function
may operate for a certain period of
time.
• Deceleration by Navigation-based
Smart Cruise Control may feel it is not
sufficient due to road conditions such
as uneven road surfaces, narrow lanes,
etc.
Information
This device complies with Part 15 of the
FCC rules.
Operation is subject to the following three
conditions:
1. This device may not cause harmful
interference, and
2. This device must accept any
interference received, including
interference that may cause undesired
operation.
3. Changes or modifications not expressly
approved by the party responsible
for compliance could void the user's
authority to operate the device.
Information
Radio frequency radiation exposure
information:
This equipment complies with FCC
radiation exposure limits set forth for an
uncontrolled environment.
This equipment should be installed and
operated with minimum distance of 8 in.
(20 cm) between the radiator (antenna)
and your body.
This transmitter must not be co-located or
operating in conjunction with any other
antenna or transmitter.

Driver Assistance System7-112
Limitations of Highway Driving
Assist
Highway Driving Assist may not operate
normally, or may not operate under the
following circumstances:
• The map information and the actual road is different because the
navigation is not updated
• The map information and the actual road is different because of real-time
GPS data or map information error
• The infotainment system is overloaded by simultaneously performing
functions such as route search, video
playback, voice recognition, etc.
• GPS signals are blocked in areas such as a tunnel
• The driver goes off course or the route to the destination is changed or
canceled by resetting the navigation
• The vehicle enters a service station or rest area
• Android Auto or Car Play is operating
• The navigation cannot detect the current vehicle position (for example,
elevated roads including overpass
adjacent to general roads or nearby
roads exist in a parallel way)
Information
For more details on the limitations of
the front view camera, front radar, front
corner radar and rear corner radar, refer
to “Forward Collision-Avoidance Assist
(FCA)” section in this chapter.
Information
This device complies with Part 15 of the
FCC rules.
Operation is subject to the following three
conditions:
1. This device may not cause harmful
interference, and
2. This device must accept any
interference received, including
interference that may cause undesired
operation.
3. Changes or modifications not expressly
approved by the party responsible
for compliance could void the user's
authority to operate the device.
Information
Radio frequency radiation exposure
information:
This equipment complies with FCC
radiation exposure limits set forth for an
uncontrolled environment.
This equipment should be installed and
operated with minimum distance of 8 in.
(20 cm) between the radiator (antenna)
and your body.
This transmitter must not be co-located or
operating in conjunction with any other
antenna or transmitter.

07
7-133
Information
This device complies with Part 15 of the
FCC rules.
Operation is subject to the following three
conditions:
1. This device may not cause harmful
interference, and
2. This device must accept any
interference received, including
interference that may cause undesired
operation.
3. Changes or modifications not expressly
approved by the party responsible
for compliance could void the user's
authority to operate the device.
Information
Radio frequency radiation exposure
information:
This equipment complies with FCC
radiation exposure limits set forth for an
uncontrolled environment.
This equipment should be installed and
operated with minimum distance of 8 in.
(20 cm) between the radiator (antenna)
and your body.
This transmitter must not be co-located or
operating in conjunction with any other
antenna or transmitter.

Emergency Situations8-10
IF THE ENGINE OVERHEATS
If your temperature gauge indicates
overheating, you experience a loss of
power, or hear loud pinging or knocking,
the engine may be overheating. If this
happens, you should:
1. Pull off the road and stop as soon as it is safe to do so.
2. Shift the gear to P (Park) and set the parking brake
3. Turn off the air conditioner.
4. When the coolant or hot steams gush out of the reservoir, stop the engine
and call an authorized HYUNDAI
dealer for assistance. If the coolant
does not flow out, leave the engine
compartment opened, while running
the engine. Check the coolant
temperature gauge on the instrument
cluster and turn off the engine to
make sure the coolant temperature is
sufficiently cooled down. 5. Cool down the engine sufficiently
and check the coolant level. When it
is insufficient, check its connection
with the radiator, the heater hose,
and the water pump for any leakage.
When there is no leakage, add the
coolant. However, if the problems
persists, such as the coolant leakages,
the cooling-fan malfunction or the
water pump drive belt damages,
immediately stop the engine, and
have your vehicle checked by an
authorized HYUNDAI dealer.

[ You should mix antifreeze and water in
a proper ratio to make coolant. If the
antifreeze ratio is too high or low, it
may cause overheating due to the lack
of cooling function.
(Refer to the Mix Ratio in “Checking
the coolant level” in chapter 8.)

[ If overheating happens repeatedly,
have your vehicle to be checked by an
authorized HYUNDAI dealer.
WARNING
While the engine is running,
keep hands, clothing and tools
away from the moving parts
such as the cooling fan and
drive belt to prevent serious
injury.