2020 KIA OPTIMA spark plugs

• To decrease the cruising speed . . . . . . . . . . . . . . . . . . 5-93
• To temporarily accelerate with the cruise control on . 5-93
• To cancel cruise control . . . . . . . . . . . . . . . . . . . . . . . 5-93
• To resume cruising speed at more than approximately 20 mph (30 km/h) . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-94
• To turn cruise control off . . . . . . . . . . . . . . . . . . . . . . 5-94
Smart cruise control with stop & go system . . . . 5-95
• Smart cruise control switch . . . . . . . . . . . . . . . . . . . . 5-97
• Smart cruise control speed . . . . . . . . . . . . . . . . . . . . . 5-97
• Vehicle to vehicle distance setting . . . . . . . . . . . . . . 5-102
• When the lane ahead is clear . . . . . . . . . . . . . . . . . . 5-103
• When there is a vehicle ahead of you in yourlane . 5-104
• To adjust the sensitivity of smart cruise control . . 5-108
• To convert to cruise control mode . . . . . . . . . . . . . . 5-109
• Limitations of the system . . . . . . . . . . . . . . . . . . . . . 5-109
Drive mode integrated control system . . . . . . . . 5-116
• Drive mode (for Automatic Transmission) . . . . . . . 5-116
• Drive mode (for Dual Clutch Transmission) . . . . . 5-120
Blind-spot Collision Warning (BCW) . . . . . . . . 5-124
• BCW (Blind-spot Collision Warning)/ LCA (Lane Change Assist) . . . . . . . . . . . . . . . . . . 5-125
• RCCW (Rear Cross-traffic Collision Warning) . . . 5-128
• Driver's attention. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-132
Lane Keeping Assist (LKA) system . . . . . . . . . . 5-134
• LKA operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-135
• LKA malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-141
• LKA function change . . . . . . . . . . . . . . . . . . . . . . . . 5-142
Driver Attention Warning (DAW) . . . . . . . . . . . 5-143
• System setting and activation . . . . . . . . . . . . . . . . . . 5-143
• Resetting the system . . . . . . . . . . . . . . . . . . . . . . . . . 5-145
• System disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-146
• System malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . 5-146
Economical operation . . . . . . . . . . . . . . . . . . . . . 5-148
Special driving conditions . . . . . . . . . . . . . . . . . . 5-150
• Hazardous driving conditions . . . . . . . . . . . . . . . . . 5-150
• Rocking the vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . 5-150
• Smooth cornering . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-151
• Driving at night . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-151
• Driving in the rain . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-152
• Driving in flooded areas . . . . . . . . . . . . . . . . . . . . . . 5-153
• Driving off-road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-153
• Highway driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-153
Winter driving . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-154
• Snowy or icy conditions . . . . . . . . . . . . . . . . . . . . . . 5-154
• Use high quality ethylene glycol coolant . . . . . . . . . 5-156
• Check battery and cables . . . . . . . . . . . . . . . . . . . . . 5-156
• Change to "winter weight" oil if necessary . . . . . . 5-156
• Check spark plugs and ignition system. . . . . . . . . . 5-156
5
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Driving your vehicle
156
5
The use of chains may adversely
affect vehicle handling.
Do not exceed 20 mph (30 km/h) or the chain manufacturer’s recom-
mended speed limit, whichever is
lower.
Drive carefully and avoid bumps, holes, sharp turns, and other road
hazards, which may cause the
vehicle to bounce.
Avoid sharp turns or locked-wheel braking.Use high quality ethylene gly-
col coolant
Your vehicle is delivered with high
quality ethylene glycol coolant in the
cooling system. It is the only type of
coolant that should be used because
it helps prevent corrosion in the cool-
ing system, lubricates the water
pump and prevents freezing. Be sure
to replace or replenish your coolant
in accordance with the maintenance
schedule in chapter 7. Before winter,
have your coolant tested to assure
that its freezing point is sufficient for
the temperatures anticipated during
the winter.
Check battery and cables
Winter puts additional burdens on
the battery system. Visually inspect
the battery and cables as described
in chapter 7. The level of charge in
your battery can be checked by an
authorized Kia dealer or a service
station.
Change to "winter weight" oil
if necessary
In some climates it is recommended
that a lower viscosity "winter weight"
oil be used during cold weather. See
chapter 8 for recommendations. If
you aren't sure what weight oil you
should use, consult an authorized
Kia dealer.
Check spark plugs and ignition
system
Inspect your spark plugs as
described in chapter 7 and replace
them if necessary. Also check all
ignition wiring and components to be
sure they are not cracked, worn or
damaged in any way.CAUTION- Snow chains
Chains that are the wrong size or improperly installed candamage your vehicle's brakelines, suspension, body andwheels.
Stop driving and retighten the chains any time you hear themhitting the vehicle.
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What to do in an emergency
46
IF THE ENGINE WILL NOT START
If engine doesn't turn over or
turns over slowly
1. If your vehicle has an automatictransmission / dual clutch trans-
mission, be sure the shift lever is
in N (Neutral) or P (Park) and the
emergency brake is set.
2. Check the battery connections to be sure they are clean and tight.
3. Turn on the interior light. If the light dims or goes out when you oper-
ate the starter, the battery is dis-
charged.
4. Check the starter connections to be sure they are securely tight-
ened.
5. Do not push or pull the vehicle to start it. See instructions for "Jump
starting".
If engine turns over normally
but does not start
1. Check the fuel level.
2. With the ignition switch in theLOCK position, check all connec-
tors at the ignition coils and spark
plugs. Reconnect any that may be
disconnected or loose.
3. Check the fuel line in the engine compartment.
4. If the engine still does not start, call an authorized Kia dealer or
seek other qualified assistance.
WARNING - Push/
pull start
Do not push or pull the vehicle
to start it. Push or pull starting
may cause the catalytic con-
verter to overload and create a
fire hazard.
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Maintenance
Engine compartment . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Maintenance services . . . . . . . . . . . . . . . . . . . . . . . . 7-6
• Owner’s responsibility . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
• Owner maintenance precautions . . . . . . . . . . . . . . . . . 7-7
Owner maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
• Owner maintenance schedule. . . . . . . . . . . . . . . . . . . . 7-8
Scheduled maintenance service. . . . . . . . . . . . . . . 7-10
Explanation of scheduled maintenance items . . . 7-22
• Engine oil and filter. . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
• Drive belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22\
• Fuel filter (for gasoline) . . . . . . . . . . . . . . . . . . . . . . . 7-22
• Fuel lines, fuel hoses and connections . . . . . . . . . . . . 7-22
• Vapor hose and fuel filler cap . . . . . . . . . . . . . . . . . . 7-22
• Vacuum crankcase ventilation hoses . . . . . . . . . . . . . 7-23
• Air cleaner filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-23
• Spark plugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-23
• Valve clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-23
• Cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-23
• Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 7-23
• Automatic transmission fluid . . . . . . . . . . . . . . . . . . . 7-23
• Dual clutch transmission Fluid . . . . . . . . . . . . . . . . . 7-24
• Brake hoses and lines . . . . . . . . . . . . . . . . . . . . . . . . . 7-24
• Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24\
• Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-25
• Brake discs, pads, calipers and rotors. . . . . . . . . . . . 7-25
• Exhaust pipe and muffler . . . . . . . . . . . . . . . . . . . . . . 7-25
• Suspension mounting bolts . . . . . . . . . . . . . . . . . . . . . 7-25
• Steering gear box, linkage &
boots/lower arm ball joint . . . . . . . . . . . . . . . . . . . . 7-25
• Drive shafts and boots. . . . . . . . . . . . . . . . . . . . . . . . . 7-25
• Air conditioning refrigerant . . . . . . . . . . . . . . . . . . . . 7-25Checking fluid levels . . . . . . . . . . . . . . . . . . . . . . . 7-25
Engine oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-26
• Checking the engine oil level . . . . . . . . . . . . . . . . . . . 7-26
• Changing the engine oil and filter . . . . . . . . . . . . . . . 7-27
Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-28
• Checking the coolant level . . . . . . . . . . . . . . . . . . . . . 7-28
• Changing the coolant . . . . . . . . . . . . . . . . . . . . . . . . . 7-30
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-31
• Checking the brake fluid level . . . . . . . . . . . . . . . . . . 7-31
Washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32
• Checking the washer fluid level . . . . . . . . . . . . . . . . . 7-32
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-33
• Checking the parking brake. . . . . . . . . . . . . . . . . . . . 7-33
Air cleaner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-34
• Filter replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-34
7
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711
Maintenance
Normal Maintenance Schedule - Non Turbo Models
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
Drive belts *1At first, inspect at 60,000 miles (96,000 km) or 72 months,
after that, inspect every 15,000 miles (24,000 km) or 24 months
Engine oil and engine oil
filterTheta II 2.4L GDIRRRRRRRRRRRRRRR
Fuel additives *2Add every 7,500 miles (12,000 km) or 12 months
Air cleaner filterIIIRIIIRIIIRIII
Spark plugsTheta II 2.4L GDIReplace every 97,500 miles (156,000 km)
Valve clearance *3Theta II 2.4L GDIInspect every 60,000 miles (96,000 km) or 72 months
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*
1: The drive belt should be replaced when cracks occur or tension is reduced.
*2: 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.
*
3: Inspect for excessive valve noise and/or engine vibration and adjust if necessary. Have an authorized Kia dealer perform the operation.
JFa PE USA 7.qxp 5/15/2019 3:12 PM Page 11

Maintenance
14
7
Maintenance Under Severe Usage Conditions - Non Turbo Models
The following items must be serviced more frequently on cars normally used under severe driving conditions. Refer
to the chart below for the appropriate maintenance intervals.
R : Replace I : Inspect and, after inspection, clean, adjust, repair or replace if neces\
sary
MAINTENANCE ITEMMAINTENANCE
OPERATIONMAINTENANCE INTERVALSDRIVING
CONDITION
Engine oil and
engine oil filterTheta II 2.4L GDIREvery 3,750 miles (6,000 km) or 6 monthsA, B, C, D, E,
F, G, H, I, J, K
Air cleaner filterRMore frequentlyC, E
Spark plugs RMore frequentlyA, B, F, G, H, I, K
Automatic transmission fluidREvery 60,000 miles (96,000 km)A, C, D, E,
F, G, H, I, J
Brake discs and pads, calipers and rotorsIMore frequentlyC, D, E, G, H
Parking brake (Foot Type)IMore frequentlyC, D, G, H
Steering gear rack, linkage and bootsIMore frequentlyC, D, E, F, G
Suspension ball joints and mounting boltsIMore frequentlyC, D, E, F, G
JFa PE USA 7.qxp 5/15/2019 3:12 PM Page 14

Maintenance
16
7
Normal Maintenance Schedule - Turbo Models
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×1,00061218243036424854606672788490
Km×1,000102030405060708090100110120130140150
Drive belts *1At first, inspect at 60,000 miles (100,000 km) or 72 months,
after that, inspect every 12,000 miles (20,000 km) or 24 months
Engine oil and engine oil
filterTheta II 2.0L T-GDIRRRRRRRRRRRRRRR
Gamma 1.6L T-GDIRRRRRRRRRRRRRRR
Fuel additives *2Add every 6,000 miles (10,000 km) or 12 months
Air cleaner filterIIIRIIIRIIIRIII
Spark plugsTheta II 2.0L T-GDIReplace every 42,000 miles (70,000 km)
Gamma 1.6L T-GDIReplace every 42,000 miles (70,000 km)
Valve clearance *3Theta II 2.0L T-GDIInspect every 60,000 miles (100,000 km) or 72 months
Gamma 1.6L T-GDIInspect every 60,000 miles (100,000 km) or 72 months
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*
1: The drive belt should be replaced when cracks occur or tension is reduced.
*2: 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.
*
3: Inspect for excessive valve noise and/or engine vibration and adjust if necessary. Have an authorized Kia dealer perform the operation.
JFa PE USA 7.qxp 5/15/2019 3:12 PM Page 16

Maintenance
20
7
Maintenance Under Severe Usage Conditions - Turbo Models
The following items must be serviced more frequently on cars normally used under severe driving conditions. Refer
to the chart below for the appropriate maintenance intervals.
R : Replace I : Inspect and, after inspection, clean, adjust, repair or replace if neces\
sary
MAINTENANCE ITEMMAINTENANCE
OPERATIONMAINTENANCE INTERVALSDRIVING
CONDITION
Engine oil and
engine oil filterTheta II 2.0L T-GDIREvery 3,000 miles (5,000 km) or 6 monthsA, B, C, D, E,
F, G, H, I, J, K
Gamma 1.6L T-GDIREvery 3,000 miles (5,000 km) or 6 monthsA, B, C, D, E,
F, G, H, I, J, K
Air cleaner filterIMore frequentlyC, E
Spark plugs RMore frequentlyA, B, F, G, H, I, K
Automatic transmission fluidREvery 60,000 miles (100,000 km) A, C, D, E,
F, G, H, I, J
Dual clutch transmission fluidREvery 75,000 miles (120,000 km)C, D, E, F, G, H, I, J
Brake discs and pads, calipers and rotorsIMore frequentlyC, D, E, G, H
Parking brake (Foot Type)IMore frequentlyC, D, G, H
Steering gear rack, linkage and bootsIMore frequentlyC, D, E, F, G
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