2019 Hyundai Tucson maintenance

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7
Maintenance
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The emission control system of your
vehicle is covered by a written limited
warranty. Please see the warranty
information contained in the Owner’s
Handbook & Warranty Information
booklet in your vehicle.
Your vehicle is equipped with an
emission control system to meet all
applicable emission regulations.
There are three emission control
systems, as follows.
(1) Crankcase emission control sys-
tem
(2) Evaporative emission control sys-
tem
(3) Exhaust emission control system
In order to assure the proper function
of the emission control systems, it is
recommended that you have your
vehicle inspected and maintained by
an authorized HYUNDAI dealer in
accordance with the maintenance
schedule in this manual.For the Inspection and
Maintenance Test (With Electronic
Stability Control (ESC) system)
To prevent the vehicle from mis-
firing during dynamometer test-
ing, turn the Electronic Stability
Control (ESC) system off by
pressing the ESC switch (ESC
OFF light illuminated).
After dynamometer testing is
completed, turn the ESC system
back on by pressing the ESC
switch again.1. Crankcase Emission Control
System
The positive crankcase ventilation
system is employed to prevent air
pollution caused by blow-by gases
being emitted from the crankcase.
This system supplies fresh filtered air
to the crankcase through the air
intake hose. Inside the crankcase,
the fresh air mixes with blow-by
gases, which then pass through the
PCV valve into the induction system.
2. Evaporative Emission Control
System Including Onboard
Refueling Vapor Recovery
(ORVR)
The Evaporative Emission Control
System is designed to prevent fuel
vapors from escaping into the atmos-
phere. The ORVR system is
designed to allow the vapors from
the fuel tank to be loaded into a can-
ister while refueling at the gas sta-
tion, preventing the escape of fuel
vapors into the atmosphere.
NOTICE

7-84
Maintenance
Canister
Fuel vapors generated inside the fuel
tank are absorbed and stored in the
onboard canister. When the engine is
running, the fuel vapors absorbed in
the canister are drawn into the surge
tank through the purge control sole-
noid valve.
Purge Control Solenoid Valve
(PCSV)
The purge control solenoid valve is
controlled by the Engine Control
Module (ECM); when the engine
coolant temperature is low during
idling, the PCSV closes so that evap-
orated fuel is not taken into the
engine. After the engine warms-up
during ordinary driving, the PCSV
opens to introduce evaporated fuel to
the engine.
3. Exhaust Emission Control
System
The Exhaust Emission Control
System is a highly effective system
which controls exhaust emissions
while maintaining good vehicle per-
formance.
When the engine starts or fails to
start, excessive attempts to restart
the engine may cause damage to the
emission system.
Vehicle modifications
This vehicle should not be modi-
fied. Modification of your vehicle
could affect its performance, safety
or durability and may even violate
governmental safety and emis-
sions regulations.
In addition, damage or performance
problems resulting from any modifi-
cation may not be covered under
warranty.
If you use unauthorized electronic
devices, it may cause the vehicle to
operate abnormally, wire damage,
battery discharge and fire. For your
safety, do not use unauthorized
electronic devices.
Engine exhaust (carbon monox-
ide) precautions
Carbon monoxide can be present
with other exhaust fumes. If you
smell exhaust fumes of any kind in
your vehicle, drive with all the win-
dows fully open. Have your vehicle
checked and repaired immediately.
Engine exhaust gases contain
carbon monoxide (CO). Though
colorless and odorless, it is
dangerous and could be lethal if
inhaled. Follow the instructions
on this page to avoid CO poi-
soning.
WARNING

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7
Maintenance
Do not operate the engine in con-
fined or closed areas (such as
garages) any more than what is
necessary to move the vehicle in or
out of the area.
When the vehicle is stopped in an
open area for more than a short
time with the engine running,
adjust the ventilation system (as
needed) to draw outside air into the
vehicle.
Never sit in a parked or stopped
vehicle for any extended time with
the engine running.
When the engine stalls or fails to
start, excessive attempts to restart
the engine may cause damage to
the emission control system.Operating precautions for cat-
alytic converters (if equipped)
CALIFORNIA PROPOSITION 65
WARNING
Engine exhaust and a wide vari-
ety of automobile components
and parts, including compo-
nents found in the interior fur-
nishings in a vehicle, contain or
emit chemicals known to the
State of California to cause can-
cer and birth defects and repro-
ductive harm. In addition, cer-
tain fluids contained in vehicles
and certain products of compo-
nent wear contain or emit chem-
icals known to the State of
California to cause cancer and
birth defects or other reproduc-
tive harm.
WARNING
The exhaust system and cat-
alytic converter are very hot
during and immediately after
the engine has been running. To
avoid SERIOUS INJURY or
DEATH:
Do not park, idle, or drive the
vehicle over or near flamma-
ble objects, such as grass,
vegetation, paper, leaves, etc.
A hot exhaust system can
ignite flammable items under
your vehicle.
Keep away from the exhaust
system and catalytic convert-
er or you may get burned.
Also, Do not remove the heat
sink around the exhaust sys-
tem, do not seal the bottom of
the vehicle, and do not coat
the vehicle for corrosion con-
trol. It may present a fire risk
under certain conditions.
WARNING

7-86
Maintenance
Your vehicle is equipped with a cat-
alytic converter emission control
device. To prevent damage to the
catalytic converter and to your vehi-
cle, take the following precautions:
Use only UNLEADED FUEL for
gasoline engines.
Do not operate the vehicle when
there are signs of engine malfunc-
tion, such as misfire or a noticeable
loss of performance.
Do not misuse or abuse the
engine. Examples of misuse are
coasting with the engine off and
descending steep grades in gear
with the engine off.
Do not operate the engine at high
idle speed for extended periods (5
minutes or more). Do not modify or tamper with any
part of the engine or emission con-
trol system. All inspections and
adjustments must be made by an
authorized HYUNDAI dealer.
Avoid driving with extremely low
fuel level. If you run out of gasoline,
it could cause the engine to misfire
and result in excessive loading of
the catalytic converter.

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Maintenance
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Perchlorate Material-special handling may apply, See: www.dtsc.ca.gov/hazardouswaste/perchlorate.
Notice to California Vehicle Dismantlers:
Perchlorate containing materials, such as air bag inflators, seatbelt pretensioners and keyless remote entry batteries,
must be disposed of according to Title 22 California Code of Regulations Section 67384.10 (a).

I-2
Accessing Your Vehicle ....................................................3-4
Immobilizer System ...................................................3-13
Remote Key ..................................................................3-4
Smart Key.....................................................................3-8
Air Bag - Advanced Supplemental Restraint System.....2-48
Additional Safety Precautions ....................................2-72
Air Bag Warning Labels.............................................2-73
Curtain air bags ..........................................................2-53
Driver's front air bag ..................................................2-50
How Does the Air Bag System Operate? ...................2-54
Occupant Classification System (OCS) .....................2-59
Passenger's front air bag.............................................2-50
Side air bags ...............................................................2-51
SRS Care ....................................................................2-71
What to Expect After an Air Bag Inflates ..................2-58
Where Are the Air Bags? ...........................................2-50
Why Didn't My Air Bag Go Off in a Collision?........2-65
Air Cleaner......................................................................7-25
Filter Replacement .....................................................7-25
Air Conditioning System ..................................................8-7
All Wheel Drive (AWD) .................................................5-43
AWD operation...........................................................5-45
Emergency precautions ..............................................5-49
Anti-lock Brake System (ABS) ......................................5-33Appearance Care .............................................................7-75
Exterior Care ..............................................................7-75
Interior Care ...............................................................7-80
Auto Hold .......................................................................5-30
Automatic Climate Control System..............................3-137
Automatic Heating and Air Conditioning ................3-138
Manual Heating and Air Conditioning .....................3-139
System Maintenance ................................................3-148
System Operation .....................................................3-146
Automatic Transmission .................................................5-14
Automatic transmission operation..............................5-14
Good Driving Practices ..............................................5-19
Battery .............................................................................7-33
Battery Recharging .....................................................7-34
For Best Battery Service ............................................7-34
Reset Features ............................................................7-35
Before Driving ..................................................................5-4
Before Entering the Vehicle .........................................5-4
Before Starting .............................................................5-4
Blind-Spot Collision Warning (BCW) System ...............5-52
BCW (Blind-Spot Collision Warning) .......................5-53
Blind-Spot Collision Warning - Sensor Location ......5-57
Limitations of the System ..........................................5-58
RCCW (Rear Cross-Traffic Collision Warning) ........5-55
Index
A
B

I-4
Driver Attention Warning (DAW) System......................5-96
Resetting the System ..................................................5-97
System Malfunction ...................................................5-98
System Setting and Activation ...................................5-96
System Standby ..........................................................5-98
Driver's front air bag .......................................................2-50
Electric Power Steering (EPS) ........................................3-21
Electronic Parking Brake (EPB) .....................................5-24
Electronic Stability Control (ESC) .................................5-35
Emission Control System ...............................................7-83
Crankcase Emission Control System .........................7-83
Evaporative Emission Control System Including
Onboard Refueling Vapor Recovery (ORVR) ........7-83
Exhaust Emission Control System .............................7-84
Engine ...............................................................................8-2
Engine compartment..................................................1-6, 7-3
Engine Coolant ...............................................................7-19
Changing Engine Coolant ..........................................7-22
Checking the Engine Coolant Level ..........................7-19
Engine Number ...............................................................8-12
Engine Oil .......................................................................7-17
Checking the Engine Oil and Filter ...........................7-18
Checking the Engine Oil Level ..................................7-17
Explanation Of Scheduled Maintenance Items ..............7-14Exterior Features .................................................3-47, 3-171
Fuel Filler Door ..........................................................3-48
Hood ...........................................................................3-47
Roof Rack.................................................................3-171
Exterior Lights ..............................................................3-107
AUTO headlamp position ........................................3-108
Battery saver function ..............................................3-114
Daytime running light (DRL) ..................................3-107
Front fog lamp ..........................................................3-114
Headlamp delay function..........................................3-115
Headlamp position....................................................3-109
High Beam Assist (HBA) .........................................3-110
High beam operation ................................................3-109
Lane change signals..................................................3-113
Parking lamp position ..............................................3-108
Turn signals ..............................................................3-113
Exterior overview .............................................................1-2
Floor Mat Anchor(s) .....................................................3-166
Forward Collision-Avoidance Assist (FCA) System
- Camera Type .............................................................5-60
FCA Sensor ................................................................5-65
FCA Warning Message and System Control..............5-63
Limitations of the System ..........................................5-68
System Not Operating ................................................5-67
System Setting and Activation ...................................5-60
Index
E
F

I-7
Lane Keeping Assist (LKA) System ..............................5-87
Limitations of the System ..........................................5-93
LKA System Function Change ..................................5-95
LKA System Operation ..............................................5-89
Warning Light and Message.......................................5-91
LCD Display ...................................................................3-91
LCD Display Control .................................................3-91
LCD Display Modes ..................................................3-92
Liftgate ............................................................................3-52
Non-Powered liftgate .................................................3-52
Power Liftgate ............................................................3-54
Smart Liftgate.............................................................3-61
Light ..............................................................................3-107
Exterior Lights..........................................................3-107
Interior Lights ...........................................................3-116
Welcome System ......................................................3-115
Light Bulbs .....................................................................7-64
Daytime Running Lamp Replacement .......................7-65
Fog Lamp Replacement .............................................7-65
Headlamp Replacement..............................................7-65
High Mounted Stop Lamp Replacement....................7-73
Interior Light Bulb Replacement ...............................7-73
License Plate Light Bulb Replacement ......................7-73
Parking Lamp Replacement .......................................7-65
Rear Combination Light Bulb Replacement ..............7-70Side Marker Replacement ..........................................7-65
Side Repeater Lamp Replacement .............................7-69
Turn Signal Lamp Replacement.................................7-65
Luggage Tray ................................................................3-170
Luggage Volume ...............................................................8-3
Maintenance Services .......................................................7-4
Owner Maintenance Precautions..................................7-4
Owner's Responsibility.................................................7-4
Manual Climate Control System ..................................3-127
Heating and Air Conditioning ..................................3-128
System Maintenance ................................................3-135
System Operation .....................................................3-133
Mirrors ............................................................................3-24
Inside Rearview Mirror ..............................................3-24
Side View Mirrors ......................................................3-36
Multimedia System ...........................................................4-3
Antenna ........................................................................4-2
Audio / Video / Navigation System (AVN) .................4-4
AUX, USB and iPod
®Port ..........................................4-2
Bluetooth®Wireless Technology Hands-Free ..............4-4
Steering Wheel Audio Control .....................................4-3
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