2020 KIA OPTIMA PHEV fuel filter

79
Maintenance
Normal Maintenance Schedule - Non Turbo Model
The following maintenance services must be performed to ensure good emission control and performance.
Keep receipts for all vehicle emission services to protect your warranty. Where both mileage and time are shown, the
frequency of service is determined by whichever occurs first.
Number of months or driving distance, whichever comes first
Months1224364860728496108120132144156168180
Miles×1,0007.51522.530 37.5 45 52.5 60 67.5 75 82.5 90 97.5 105 112.5
Km×1,00012 24 36 48 60 72 84 96 108 120 132 144 156 168 180
Engine oil and engine oil
filterNu 2.0L GDIRRRRRRRRRRRRRRR
Fuel additives *1Add every 7,500 miles (12,000 km) or 12 months
Air cleaner filterIIIRIIIRIIIRIII
Spark plugsNu 2.0L GDIReplace every 97,500 miles (156,000 km)
Rotate tiresRotate every 7,500 miles (12,000 km)
Climate control air filterRRRRRRRRRRRRRRR
Vacuum hoseIIIIIIIIIIIIIII
Coolant (Engine/Inverter)At first, replace at 120,000 miles (192,000 km) or 10 years,
after that, replace every 30,000 miles (48,000 km) or 24 months
MAINTENANCE INTERVALS
MAINTENANCE
ITEM
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*
1: If TOP TIER Detergent Gasoline is not available, one bottle of additive is recommended. Additives are available from your authorized Kia dealer along with information on how to use them. Do not mix other additives.

711
Maintenance
Number of months or driving distance, whichever comes first
Months1224364860728496108120132144156168180
Miles×1,0007.51522.530 37.5 45 52.5 60 67.5 75 82.5 90 97.5 105 112.5
Km×1,00012 24 36 48 60 72 84 96 108 120 132 144 156 168 180
Fuel tank air filter *3-I-I-I-I-I-I-I-
Fuel lines, hoses and connections---I---I---I---
Parking brake (Foot Type)-I-I-I-I-I-I-I-
Brake fluid-I-I-I-I-I-I-I-
MAINTENANCEINTERVALS
MAINTENANCE
ITEM
Normal Maintenance Schedule - Non Turbo Model (CONT.)
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*
3: Fuel tank air filter are considered to generally be maintenance free but periodic inspection is recommended under this main- tenance schedule depending on fuel quality.

Maintenance
14
7
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS
Engine oil and filter
The engine oil and filter should be
changed at the intervals specified in
the maintenance schedule. If the
vehicle is being driven in severe con-
ditions, more frequent oil and filter
changes are required.
HSG (Hybrid starter & genera-
tor) belt
The HSG belt should be changed at
the intervals specified in the mainte-
nance schedule.
Fuel filter (for gasoline)
Kia gasoline vehicles are equipped a
lifetime fuel filter that is integrated
with the fuel tank. Regular mainte-
nance or replacement is generally
not needed but depends on fuel
quality. If there are some important
fuel related problems like fuel flow
restriction, surging, loss of power,
hard starting problem etc, fuel filter
inspection or replace is needed.
The fuel filter should be inspected or
replaced by an authorized Kia dealer.
Fuel lines, fuel hoses and con-
nections
Check the fuel lines, fuel hoses and
connections for leakage and dam-
age. Have an authorized Kia dealer
replace any damaged or leaking
parts immediately.
Vapor hose and fuel filler cap
The vapor hose and fuel filler cap
should be inspected at those inter-
vals specified in the maintenance
schedule. Make sure that a new
vapor hose or fuel filler cap is cor-
rectly replaced.
Vacuum crankcase ventilation
hoses
Inspect the surface of hoses for evi-
dence of heat and/or mechanical
damage. Hard and brittle rubber,
cracking, tears, cuts, abrasions, and
excessive swelling indicate deterio-
ration. Particular attention should be
paid to examine those hose surfaces
nearest to high heat sources, such
as the exhaust manifold.
Inspect the hose routing to assure
that the hoses do not come in con-
tact with any heat source, sharp
edges or moving component which
might cause heat damage or
mechanical wear. Inspect all hose
connections, such as clamps and
couplings, to make sure they are
secure, and that no leaks are pres-
ent. Hoses should be replaced
immediately if there is any evidence
of deterioration or damage.

799
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.)

Index
4I
Operating door locks from inside the vehicle ............4-14
Operating door locks from outside the vehicle ..........4-13
Drive mode integrated control system ..........................5-96 Hybrid vehicle ............................................................5-96
Limitation of ECO operation ......................................5-97
When ECO is activated ..............................................5-97
Driver Attention Warning (DAW)................................5-125 Resetting the system ................................................5-127
System disabled ........................................................5-127
System malfunction ..................................................5-128
System setting and activation ..................................5-125
ECO system ..................................................................5-98 Limitation of ECO operation ......................................5-99
Plug-in hybrid vehicle ................................................5-98
When ECO is activated ..............................................5-99
Economical operation ..................................................5-130
Electrical equipment (U.S. only) ..................................8-14 Installation of a mobile two-way radio system ..........8-14
Emergency starting ..........................................................6-5 Jump starting ................................................................6-5
Push-starting ................................................................6-6 Emission control system ................................................7-99
Crankcase emission control system ............................7-99
Evaporative emission control (including ORVR : Onboard Refueling Vapor Recovery) system ..........7-99
Exhaust emission control system ..............................7-100
Engine ........................................................................\
......8-2
Engine compartment ................................................2-6, 7-3
Engine maintenance mode (for plug-in Hybrid) ..........7-20 Starting Engine Maintenance Mode ..........................7-20
Stopping Engine Maintenance Mode..........................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 ..................................................5-7 Engine start/stop button position ..................................5-7
Illuminated engine start/stop button ............................5-7
Starting the hybrid system ............................................5-9
Explanation of scheduled maintenance items ..............7-14
Exterior overview ............................................................2-2
Forward Collision-avoidance Assist (FCA) system ......5-43 Brake operation ..........................................................5-47
FCA sensor (Front view camera)................................5-48
FCA warning message and system control ................5-45
Limitation of the system ............................................5-51
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