heater HYUNDAI TUCSON 2021 User Guide

3-153
Convenient features of your vehicle
3
Auto Defogging System
(if equipped)
Auto defogging helps reduce the
possibility of fogging up the inside of
the windshield by automatically
sensing the moisture that accumu-
lates on inside the windshield.
The auto defogging system operates
when the heater or air conditioning is
on.When the Auto Defogging
System operates, the indi-
cator will illuminate.
If a high amount of humidity is
detected in the vehicle, the Auto
Defogging System will be enabled.
The following steps will be performed
automatically:
Step 1 : Outside air position
Step 2 : Operating the air condition-
ing
Step 3 : Blowing air toward the wind-
shield
Step 4 : Increasing air flow toward
the windshield
If the air conditioning is off or recircu-
lated air position is manually select-
ed while Auto Defogging System is
ON, the "ADS OFF" symbol will blink
3 times to signal that the manual
operation has been canceled.
To cancel or reset the
Auto Defogging System
Press the front windshield defroster
button for 3 seconds when the igni-
tion switch is in the ON position.
When the Auto Defogging System is
canceled, the ADS OFF symbol will
blink 3 times and ADS OFF will be
displayed on the climate control
information screen.
When the Auto Defogging System is
reset, the ADS OFF symbol will blink
6 times without a signal.
OTLE048332

3-161
Convenient features of your vehicle
3
Power Outlet
The accessory 12V power outlet can
be used to plug in electrical equip-
ment such as a mobile phone or
other electronic device.The accessory power outlet only
works with the vehicle turned ON.
The devices should draw less than
180 W with the engine running.
To prevent damage to the Power
Outlets :
Use the power outlet only when
the engine is running and
remove the accessory plug after
use. Using the accessory plug
for prolonged periods of time
with the engine off could cause
the battery to discharge.
Only use 12V electric acces-
sories which are less than 180 W
in electric capacity. Adjust the air-conditioner or
heater to the lowest operating
level when using the power out-
let.
Close the cover when not in use.
Some electronic devices can
cause electronic interference
when plugged into a vehicle’s
power outlet. These devices may
cause excessive audio static
and malfunctions in other elec-
tronic systems or devices used
in your vehicle.
Push the plug in as far as it will
go. If good contact is not made,
the plug may overheat and the
fuse may blow.
Plug in battery equipped electri-
cal/electronic devices with
reverse current protection. The
current from the battery may
flow into the vehicle’s electri-
cal/electronic system and cause
system malfunction.
NOTICE
Avoid electrical shocks. Do not
place your fingers or foreign
objects (pin, etc.) into a power
outlet or touch the power outlet
with a wet hand.
WARNING
OTLE048098
■Front
OTL045516
■Rear (if equipped)

7-7
7
Maintenance
At least twice a year:(i.e., every Spring and Fall)
Check radiator, heater and air con-
ditioning hoses for leaks or dam-
age.
Check windshield washer spray and wiper operation. Clean wiper
blades with a clean cloth damp-
ened with washer a fluid.
Check headlamp alignment.
Check muffler, exhaust pipes, shields and clamps.
Check the seat belts for wear and function.
At least once a year:
Clean body and door drain holes.
Lubricate door hinges and hoodhinges.
Lubricate door and hood locks and latches.
Lubricate door rubber weather strips.
Check the air conditioning system.
Inspect and lubricate automatic transmission linkage and controls.
Clean the battery and terminals.
Check the brake fluid level.

7-19
7
Maintenance
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The high-pressure cooling system
has a reservoir filled with year-round
antifreeze coolant. The reservoir is
filled at the factory.
Check the antifreeze protection and
coolant level at least once a year, at
the beginning of the winter season
and before traveling to a colder cli-
mate.Checking the Engine Coolant
Level
Check the condition and connections
of all cooling system hoses and
heater hoses. Replace any swollen or deteriorated
hoses.
The coolant level should be filled
between the MAX and MIN marks on
the side of the coolant reservoir
when the engine is cool.
If the coolant level is low, add enough
distilled (deionized) water to bring
the level to the MAX mark, but do not
overfill. If frequent additions are
required, see an authorized
HYUNDAI dealer for a cooling sys-
tem inspection.
OTL075070
OTL078008

7-58
Maintenance
Instrument panel fuse panel
Fuse Name Fuse ratingCircuit Protected
TAILGATE OPEN10ATail Gate Open Relay
S/HEATER RR15ARear Seat Warmer
MDPS7.5AMDPS Unit
SMART KEY37.5A Smart Key Control Module, Immobilizer Module
CLUSTER7.5A Instrument Cluster (IG1 Power)
SMART KEY210A Smart Key Control Module, Start/Stop Button Switch, Immobilizer Module
MULTIMEDIA15A Audio, A/V & Navigation Head Unit
INTERIOR LAMP10A Ignition Key Ill. & Door Warning Switch, Luggage Lamp, Glove Box Lamp, Overhead Console Lamp,
Front Vanity Lamp LH/RH, Room Lamp, Rear Personal Lamp LH/RH, Wireless Charger
DOOR LOCK20A Door Lock Relay, Door Unlock Relay, ICM Relay Box (Two Turn Unlock Relay)
SUNROOF220A Panoramic Sunroof
POWER OUTLET20A [W/O Wireless Charging] Front Power Outlet & Cigarette Lighter,
[With Wireless Charging] Cigarette Lighter
BRAKE SWITCH7.5A Smart Key Control Module, Stop Lamp Switch
MEMORY210A Instrument Cluster, A/C Control Module, Electro Chromic Mirror
P/SEAT (PASS)30A Passenger Seat Manual Switch
S/HEATER FRT20A Front Air Ventilation Seat Control Module, Front Seat Warmer Control Module
MODULE220A PCB Block (Fuse - ABS3, ECU6, TCU2)
SUNROOF120A Panoramic Sunroof
A/CON27.5A A/C Control Module
HEATED MIRROR10ADriver/Passenger Power Outside Mirror, A/C Control Module, ECM (G4FJ)
P/SEAT (DRV)30ADriver Seat Manual Switch

7
Maintenance
Engine compartment main fuse panel
Fuse NameFuse rating Circuit Protected
MULTI
FUSE-1
MDPS 80AMDPS Unit
B+1 60ASmart Junction Block (ARISU-LT IPS 1, IPS 2, IPS 3, IPS 4, Fuse - AMP)
B+2 60ASmart Junction Block (ARISU-LT IPS 5, IPS 6, IPS 7, IPS 8, Fuse - SMART KEY1,
SMART KEY2, BRAKE SWITCH, MODULE9)
B+3 50ASmart Junction Block (Fuse - SUNROOF1, SUNROOF2, S/HEATER FRT, S/HEATER RR,
SAFETY P/WINDOW DRV),
Power Window Relay (Fuse - P/WINDOW LH, P/WINDOW RH)
ABS1 40AESC Module, Multipurpose Check Connector
ABS2 40AESC Module, Multipurpose Check Connector
IG1 40AIgnition Switch (W/O Smart Key),
PCB Block (PDM (IG1)/PDM (ACC) Relay - With Smart Key)
IG2 30AStart Relay, Ignition Switch (W/O Smart Key),
PCB Block (PDM (IG2) Relay - With Smart Key)
MULTI
FUSE-2PTC HEATER 150APTC 1 Relay
PTC HEATER 250APTC 2 Relay
FUSE
B+450A Smart Junction Block (Fuse - MODULE8, 4WD, P/SEAT (DRV), P/SEAT (PASS),
TAILGATE OPEN, DOOR LOCK,
Leak Current Autocut Device - Fuse Switch, INTERIOR LAMP, MULTIMEDIA, MEMORY2)
COOLING FAN140A [G4NC/G4KJ] Cooling Fan High Relay
50A [G4FJ] Cooling Fan High Relay
TCU340A [G4FJ - 7DCT] TCM
TCU440A [G4FJ - 7DCT] TCM
BLOWER40A Blower Relay
POWER TAILGATE40A Power Tail Gate Module
REAR HEATED40A Rear Defogger Relay
7-61

I-5
Forward Collision-Avoidance Assist (FCA) System
- Sensor Fusion Type (Front Radar + Front Camera)...5-73
FCA Sensor ................................................................5-77
FCA Warning Message and System Control..............5-76
Limitations of the System ..........................................5-81
System Not Operating ................................................5-79
System Setting and Activation ...................................5-73
Front Seat Heaters...........................................................2-20
Front Seats ........................................................................2-6
Front Ventilated Seats .....................................................2-21
Front Windshield Washers ............................................3-122
Fuel Filler Door ..............................................................3-48
Fuses ...............................................................................7-51
Engine Compartment Panel Fuse Replacement .........7-53
Fuse/Relay Panel Description ....................................7-56
Instrument Panel Fuse Replacement ..........................7-52
Glove Box .....................................................................3-157
Gross Vehicle Weight ........................................................8-3Hazard Warning Flasher ...................................................6-2
Head restraints ................................................................2-15
Heated Seats and Ventilated Seats ..................................2-20
Heated Steering Wheel ...................................................3-23
Hill-Start Assist Control (HAC) .....................................5-40
Hood................................................................................3-47
Horn ................................................................................3-23
If The Engine Overheats ...................................................6-6
If the Engine Will Not Start ..............................................6-3
If the Engine Doesn't Turn Over or
Turns Over Slowly ....................................................6-3
If the Engine Turns Over Normally but
Doesn't Start ..............................................................6-3
If You Have a Flat Tire ...................................................6-14
Changing Tires ...........................................................6-15
Jack and Tools ............................................................6-14
Ignition Switch..................................................................5-6
Engine Start/Stop Button ..............................................5-9
Key Ignition Switch .....................................................5-6
Immobilizer System ........................................................3-13
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Index
G
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I

I-8
Non-Powered liftgate ......................................................3-52
Owner Maintenance ..........................................................7-5
Owner Maintenance Schedule......................................7-6
Panoramic Sunroof .........................................................3-43
Closing the Sunroof....................................................3-45
Sliding the Sunroof ....................................................3-44
Sunshade.....................................................................3-44
Tilting the Sunroof .....................................................3-45
To Reset the Sunroof ..................................................3-46
Parking Brake ........................................................5-22, 7-24
Checking the Parking Brake ......................................7-24
Passenger's front air bag .................................................2-50
Plastic Bag Hook ..........................................................3-166
Power Brakes ..................................................................5-21
Power Liftgate.................................................................3-54
Power Outlet .................................................................3-161Rear Seat Heaters............................................................2-23
Rear Seats .......................................................................2-12
Rear View Monitor .......................................................3-124
Rear Window Wiper and Washer Switch .....................3-123
Recommended Lubricants and Capacities ........................8-8
Recommended SAE Viscosity Number .....................8-10
Remote Key ......................................................................3-4
Reporting Safety Defects ................................................8-14
Roof Rack .....................................................................3-171
Scheduled Maintenance Services .....................................7-8
Maintenance Under Severe Usage Conditions
(2.0 GDI, 2.4 GDI)..................................................7-12
Normal Maintenance Schedule
(2.0 GDI, 2.4 GDI)....................................................7-9
Severe Driving Conditions .........................................7-13
Seat Belts ........................................................................2-24
Additional Seat Belt Safety Precautions ....................2-34
Care of Seat Belts .......................................................2-37
Seat Belt Restraint System .........................................2-26
Seat Belt Safety Precautions ......................................2-24
Seat Belt Warning Light .............................................2-25
Index
O
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I-9
Seats ..................................................................................2-4
Front Seat Heaters ......................................................2-20
Front Seats ....................................................................2-6
Front Ventilated Seats.................................................2-21
Head restraints ............................................................2-15
Heated Seats and Ventilated Seats .............................2-20
Rear Seat Heaters .......................................................2-23
Rear Seats ...................................................................2-12
Safety Precautions ........................................................2-5
Side air bags....................................................................2-51
Side View Mirrors...........................................................3-36
Smart Cruise Control With Stop & Go System ............5-105
Conventional Cruise Control Mode .........................5-116
Limitations of the System ........................................5-117
Smart Cruise Control Radar Sensor .........................5-114
Smart Cruise Control Speed .....................................5-106
Smart Cruise Control Switch ...................................5-105
Smart Cruise Control Vehicle-to-Vehicle Distance ..5-110
To Adjust the Sensitivity of Smart Cruise Control ..5-115
Smart Key .........................................................................3-8
Smart Liftgate .................................................................3-61Special Driving Conditions...........................................5-122
Driving at night ........................................................5-123
Driving in flooded areas ...........................................5-124
Driving in the rain ....................................................5-123
Hazardous driving conditions ..................................5-122
Highway driving.......................................................5-124
Reducing the risk of a rollover.................................5-125
Rocking the vehicle ..................................................5-122
Smooth cornering .....................................................5-123
Steering Wheel ................................................................3-21
Electric Power Steering (EPS) ...................................3-21
Heated Steering Wheel ...............................................3-23
Horn ............................................................................3-23
Tilt Steering/Telescope Steering.................................3-22
Storage Compartment ...................................................3-157
Center Console Storage ............................................3-157
Glove Box ................................................................3-157
Sunglass Holder........................................................3-158
Sunglass Holder ............................................................3-158
Sunvisor ........................................................................3-160
Surround View Monitor ................................................3-125
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Index