2020 KIA CADENZA maintenance

785
Maintenance
Taking care of leather seats
Vacuum the seat periodically to
remove dust and sand on the seat.
It will prevent abrasion or damage of
the leather and maintain its quality.
Wipe the natural leather seat cover
often with dry or soft cloth.
Sufficient use of a leather protec-
tive may prevent abrasion of the
cover and helps maintain the color.
Be sure to read the instructions
and consult a specialist when
using leather coating or protective
agents.
Leather with bright colors(beige,
cream beige) is easily contaminat-
ed and clear in appearance. Clean
the seats frequently.
Avoid wiping with wet cloth. It may
cause the surface to crack.
Cleaning the leather seats
Remove all contaminations instant-
ly. Refer to instructions below for
removal of each contaminant.
Cosmetic products(sunscreen,
foundation, etc.)
- Apply cleansing cream on a cloth
and wipe the contaminated point.
Wipe off the cream with a wet
cloth and remove water with a dry
cloth.
Beverages(coffee, soft drink, etc.)
- Apply a small amount of neutral
detergent and wipe until contami-
nations do not smear.
Oil
- Remove oil instantly with
absorbable cloth and wipe with
stain remover for natural leather
only.
Chewing gum
- Harden the gum with ice and
remove gradually.CAUTION - Electrical
components
Never allow water or other liq-
uids to come in contact with
electrical/electronic compo-
nents inside the vehicle as this
may damage them.
CAUTION - Leather
When cleaning leather products
(steering wheel, seats etc.), use
neutral detergents or low alco-
hol content solutions. If you use
high alcohol content solutions
or acid/alkaline detergents, the
color of the leather may fade or
the surface may get stripped off.

Maintenance
86 7
Fabric seat cover using precau-
tions (If equipped)
Please clean the fabric seats regu-
larly with a vacuum cleaner in con-
sideration of fabric material charac-
teristics. If they are heavily soiled
with beverage stains, etc., use a suit-
able interior cleaner. To prevent dam-
age to seat covers, wipe off the seat
covers down to the seams with a
large wiping motion and moderate
pressure using a soft sponge or
microfiber cloth.
Velcro closures on clothing or sharp
objects may cause snagging or
scratches on the surface of the
seats. Make sure not to rub such
objects against the surface.
Cleaning the upholstery and inte-
rior trim
Vinyl
Remove dust and loose dirt from
vinyl with a whisk broom or vacuum
cleaner. Clean vinyl surfaces with a
vinyl cleaner.
Fabric
Remove dust and loose dirt from fab-
ric with a whisk broom or vacuum
cleaner. Clean with a mild soap solu-
tion recommended for upholstery or
carpets. Remove fresh spots imme-
diately with a fabric spot cleaner. If
fresh spots do not receive immediate
attention, the fabric can be stained
and its color can be affected. Also, its
fire-resistant properties can be
reduced if the material is not proper-
ly maintained.
Using anything but recommended
cleaners and procedures may affect
the fabric’s appearance and fire-
resistant properties.
Cleaning the lap/shoulder belt
webbing
Clean the belt webbing with any mild
soap solution recommended for
cleaning upholstery or carpet. Follow
the instructions provided with the
soap. Do not bleach or re-dye the
webbing because this may weaken it.
Cleaning the interior window
glass
If the interior glass surfaces of the
vehicle become fogged (that is, cov-
ered with an oily, greasy or waxy
film), they should be cleaned with a
glass cleaner. Follow the directions
on the glass cleaner container.
CAUTION- Rear window
Do not scrape or scratch the
inside of the rear window. This
may result in damage of the rear
window defroster grid.

787
Maintenance
EMISSION CONTROL SYSTEM
The emission control system of your
vehicle is covered by a written limited
warranty. Please see the warranty
information contained in the
Warranty & Consumer Information
manual 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 Kia dealer in accor-
dance with the maintenance sched-
ule in this manual.Caution 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.
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 con-
trol (including ORVR:
Onboard Refueling Vapor
Recovery)
system
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 canister while refu-
eling at the gas station, preventing
the escape of fuel vapors into the
atmosphere.)

Maintenance
88 7
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.
Vehicle modifications
This vehicle should not be modified.
Modification of your vehicle could
affect its performance, safety or
durability and may even violate gov-
ernmental safety and emissions reg-
ulations.
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 gas precautions
(carbon monoxide)
Carbon monoxide can be present
with other exhaust fumes.
Therefore, if you smell exhaust
fumes of any kind inside your vehi-
cle, have it inspected and repaired
immediately. If you ever suspect
exhaust fumes are coming into
your vehicle, drive it only with all
the windows fully open. Have your
vehicle checked and repaired
immediately.
WARNING - Exhaust
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.

789
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 catalyt-
ic converters (if equipped)
WARNING- Catalytic
converter
Keep away from the catalytic
converter and exhaust system
while the vehicle is running or
immediately thereafter. The
exhaust and catalytic systems
are very hot and may burn you.
WARNING- Fire
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.
Also, do not remove the heat
sink around the exhaust sys-
tem, do not seal the bottom of
the vehicle or do not coat the
vehicle for corrosion control.
It may present a fire risk under
certain conditions.

Your vehicle is equipped with a cat-
alytic converter emission control
device.
Therefore, the following precautions
must be observed:
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 ignition off and
descending steep grades in gear
with the ignition 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 Kia dealer.
Avoid driving with an extremely low
fuel level. Running out of fuel could
cause the engine to misfire, dam-
aging the catalytic converter.Failure to observe these precautions
could result in damage to the catalyt-
ic converter and to your vehicle.
Additionally, such actions could void
your warranties.Perchlorate Material-special handling
may apply, See www.dtsc.ca.gov/haz-
ardouswaste/ 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 Chapter 67384.10
(a).
CALIFORNIA
PERCHLORATE NOTICE
790
Maintenance

Specifications, Consumer information, Reporting safety defects
14 8
If you believe that your vehicle has a defect which could
cause a crash or could cause injury or death, you should
immediately inform the National Highway Traffic Safety
Administration (NHTSA) in addition to notifying Kia
Motors America, Inc.
If NHTSA receives similar complaints, it may open an
investigation, and if it finds that a safety defect exists in a
group of vehicles, it may order a recall and remedy cam-
paign. However, NHTSA cannot become involved in indi-
vidual problems between you, your dealer, or Kia Motors
America, Inc.
To contact NHTSA, you may call the Vehicle Safety
Hotline toll-free at 1-888-327-4236 (TTY: 1-800-424-
9153); go to http://www.safercar.gov; download the
SaferCar mobile application; or write to: Administrator,
NHTSA, 1200 New Jersey Ave. SE., Washington, DC
20590. You can also obtain other information about motor
vehicle safety from http://www.safercar.gov.The following publications are available on
www.KiaTechinfo.com
Service manual:
This manual covers maintenance and recommended pro-
cedures for repair to engine and chassis components. It
is written for the Journeyman mechanic, but is simple
enough for most mechanically inclined owners to under-
stand.
Electrical troubleshooting manual:
This manual complements the Service Manual by provid-
ing indepth troubleshooting information for each electrical
circuit in your vehicle.
Owner's manual:
This manual describes the overall features and operating
procedures for the vehicle.
REPORTING SAFETY DEFECTS
(U.S. ONLY)ONLINE FACTORY AUTHORIZED MANUALS
(U.S. ONLY)

Index
4I
Emission control system ................................................7-87
Crankcase emission control system ............................7-87
Evaporative emission control (including ORVR:Onboard
Refueling Vapor Recovery) system ..........................7-87
Exhaust emission control system ................................7-88
Engine ............................................................................8-2
Engine compartment ................................................2-6, 7-3
Engine coolant ..............................................................7-20
Changing the coolant ..................................................7-22
Checking the coolant level..........................................7-20
Engine number ................................................................8-9
Engine oil ......................................................................7-18
Changing the engine oil and filter ..............................7-19
Checking the engine oil level ....................................7-18
ENGINE START/STOP button ......................................5-6
ENGINE START/STOP button position ......................5-6
Illuminated ENGINE START/STOP button ................5-6
Starting the engine with a smart key ............................5-8
Explanation of scheduled maintenance items ..............7-14
Exterior overview ............................................................2-2
Forward Collision-Avoidance Assist (FCA)
(Sensor fusion) ............................................................5-44
Brake operation ..........................................................5-49
Detecting sensors (Front view camera/Front radar) ..5-50
FCA warning message and control ............................5-47Limitation of the system ............................................5-54
System malfunction ....................................................5-52
System setting and activation ....................................5-44
Fuel filler door ..............................................................4-36
Closing the fuel filler door..........................................4-37
Emergency fuel filler door release ..............................4-37
Opening the fuel filler door ........................................4-36
Fuel requirements ............................................................1-2
Do not use methanol ....................................................1-4
Fuel Additives ..............................................................1-4
Gasoline containing alcohol and methanol ..................1-3
Operation in foreign countries ......................................1-5
Fuses ..............................................................................7-50
Engine compartment fuse replacement ......................7-53
Fuse/relay panel description ......................................7-56
Inner panel fuse replacement ......................................7-51
Gross vehicle weight........................................................8-5
Highway Driving Assist (HDA) ................................5-128
Warning Message ......................................................5-131
Hood ..............................................................................4-34
Closing the hood ........................................................4-35
Opening the hood ......................................................4-34
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