2020 KIA OPTIMA brake fluid

Your vehicle at a glance
62
ENGINE COMPARTMENT
OJFHP078161
■ ■
Gasoline Engine (Nu 2.0 L - GDI)
❈ The actual engine room in the vehicle may differ from the illustration. 1. Engine coolant reservoir ...................7-22
2. Engine oil filler cap ...........................7-18
3. Engine oil dipstick .............................7-18
4. Brake fluid reservoir ..........................7-25
5. Air cleaner.........................................7-28
6. Fuse box ...........................................7-57
7. Inverter coolant reservoir ..................7-22
8. Radiator cap .....................................7-23
9. Windshield washer fluid reservoir .....7-26

485
Features of your vehicle
Parking Brake & BrakeFluid Warning Light
This warning light illuminates:
Once you set the Engine Start/Stop Button to the ON posi-
tion.
- It illuminates for approximately 3seconds
- It remains on if the parking brake is applied.
When the parking brake is applied.
When the brake fluid level in the reservoir is low.
- If the warning light illuminateswith the parking brake released, it
indicates the brake fluid level in
reservoir is low. If the brake fluid level in the reservoir
is low:
1. Drive carefully to the nearest safe
location and stop your vehicle.
2. With the engine stopped, check the brake fluid level immediately
and add fluid as required (For
more details, refer to “Brake Fluid”
in chapter 7).
Then check all brake components
for fluid leaks. If any leaks in the
brake system are still found, the
warning light remains on, or the
brakes do not operate properly, do
not drive the vehicle.
In this case, have your vehicle
towed to an authorized Kia dealer
and inspected. Dual-diagonal braking system
Your vehicle is equipped with dual-
diagonal braking systems. This
means you still have braking on two
wheels even if one of the dual sys-
tems should fail.
With only one of the dual systems
working, greater pedal pressure will
be required to stop the vehicle.
Also, the vehicle will require
increased stopping distance with
only a portion of the brake system
working.
If the brakes fail while you are driv-
ing, shift to a lower gear for addition-
al engine braking and stop the vehi-
cle as soon as it is safe to do so.
Driving the vehicle with a warning
light ON is dangerous. If the Parking
Brake & Brake Fluid Warning Light
illuminate with the parking brake
released, it indicates that the brake
fluid level is low.
In this case, have your vehicle
inspected by an authorized Kia deal-
er.

Features of your vehicle
86
4
Anti-lock Brake System
(ABS) Warning Light
This warning light illuminates:
Once you set the Engine Start/Stop Button to the ON posi-
tion.
- It illuminates for approximately 3seconds and then goes off.
When there is a malfunction with the ABS (The normal braking sys-
tem will still be operational without
the assistance of the anti-lock
brake system).
In this case, have your vehicle
inspected by an authorized Kia
dealer.
Electronic
Brake forceDistribution(EBD) SystemWarning Light
These two warning lights illuminate at
the same time while driving:
When the ABS and regular brake system may not work normally.
In this case, have your vehicle
inspected by an authorized Kia
dealer.
WARNING - Electronic
Brake force Distribution
(EBD) System Warning Light
When both ABS and Parking
Brake & Brake Fluid Warning
Lights are on, the brake system
will not work normally and you
may experience an unexpected
and dangerous situation during
sudden braking thereby
increasing the risk of a crash
and injury. In this case, avoid
high speed driving and abrupt
braking. Have your vehicle
inspected by an authorized Kia
dealer as soon as possible.

487
Features of your vehicle
✽ ✽NOTICE- Electronic Brake
force Distribution (EBD)
System Warning Light
When the ABS Warning Light is on
or both the ABS and the Parking
Brake & Brake Fluid Warning
Lights are on, the speedometer,
odometer, or tripmeter may not
work. Also, the EPS Warning Light
may illuminate and the steering
effort may increase or decrease.
In this case, have your vehicle inspect-
ed by an authorized Kia dealer as
soon as possible.
Regenerative Brake Warning Light
This warning light illuminates :
When the regenerative brake does
not operate and the brake does not
perform well. This causes the Brake
Warning light (red) and Regenerative
Brake Warning Light (yellow) to illu-
minate simultaneously.
In this case, drive safely and have
your vehicle inspected by an author-
ized Kia dealer.
Electronic PowerSteering (EPS) WarningLight
This warning light illuminates:
When the ignition is moved to ON, the warning light illuminates for
about 3 seconds and turns off
automatically if no problem.
When the warning light illuminates while driving, it indicates that there
is a problem with the electric power
steering system. In this case, have
your vehicle inspected by an
authorized Kia dealer.
(yellow color)
(red color)

55
Driving your vehicle
Before entering vehicle
• Be sure that all windows, outsidemirror(s), and outside lights are
clean.
Check the condition of the tires.
Check under the vehicle for any sign of leaks.
Be sure there are no obstacles behind you if you intend to back up.
Necessary inspections
Fluid levels, such as engine oil,
engine coolant, brake fluid, and
washer fluid should be checked on a
regular basis, at the exact interval
depending on the fluid. Further
details are provided in chapter 8,
“Maintenance”.
Before starting
Close and lock all doors.
Position the seat so that all con-trols are easily reached.
Buckle your seat belt.
Adjust the inside and outside rearview mirrors.
Be sure that all lights work.
Check all gauges.
Check the operation of warning lights when the engine start/stop
button is turned to the ON position.
Release the parking brake and make sure the brake warning light
goes out.
For safe operation, be sure you are
familiar with your vehicle and its
equipment.
BEFORE DRIVING
WARNING - Distracted driving
Focus on the road while driving.
The driver's primary responsi-
bility is in the safe and legal
operation of the vehicle. Use of
any handled devices, other
equipment or vehicle systems
that distract the driver should
not be used during vehicle
operation.

Driving your vehicle
138
5
Check spark plugs and ignition
system
Inspect your spark plugs as
described in chapter 8 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.
To keep locks from freezing
To keep the locks from freezing,
squirt an approved de-icer fluid or
glycerine into the key opening. If a
lock is covered with ice, squirt it with
an approved de-icing fluid to remove
the ice. If the lock is frozen internally,
you may be able to thaw it out by
using a heated key. Handle the heat-
ed key with care to avoid injury.
Use approved window washer
anti-freeze in system
To keep the water in the window
washer system from freezing, add an
approved window washer anti-freeze
solution in accordance with instruc-
tions on the container. Window wash-
er anti-freeze is available from an
authorized Kia dealer and most auto
parts outlets. Do not use engine
coolant or other types of anti-freeze
as these may damage the paint fin-
ish.
Don’t let your parking brake
freeze
Under some conditions your parking
brake can freeze in the engaged
position. This is most likely to happen
when there is an accumulation of
snow or ice around or near the rear
brakes or if the brakes are wet. If
there is a risk the parking brake may
freeze, apply it only temporarily while
you put the gear shift lever in P (Park,
Automatic Transmission) and block
the rear wheels so the vehicle cannot
roll. Then release the parking brake.
Don't let ice and snow accu-
mulate underneath
Under some conditions, snow and
ice can build up under the fenders
and interfere with the steering. When
driving in severe winter conditions
where this may happen, you should
periodically check underneath the
vehicle to be sure the movement of
the front wheels and the steering
components are not obstructed.

What to do in an emergency
28
6
Emergency towing precautions
Turn the ignition switch to ACC so
the steering wheel isn’t locked.
Place the transmission shift lever in N (Neutral).
Release the parking brake.
Press the brake pedal with more force than normal since you will
have reduced brake performance.
More steering effort will be required because the power steer-
ing system will be disabled.
If you are driving down a long hill, the brakes may overheat and brake
performance will be reduced. Stop
often and let the brakes cool off.
The vehicle should be towed at a speed of 25 km/h (15 mph) or less
within the distance of 20 km (12
miles). If the car is being towed with all
four wheels on the ground, it can
be towed only from the front. Be
sure that the transmission is in
neutral. Be sure the steering is
unlocked by placing the ignition
switch in the ACC position. A driver
must be in the towed vehicle to
operate the steering and brakes.
CAUTION - Automatic
transmission
To avoid serious damage to the automatic transmission,limit the vehicle speed to 15km/h (10 mph) and drive lessthan 1.5 km (1 mile) when tow-ing.
Before towing, check the auto- matic transmission for fluidleaks under your vehicle. If theautomatic transmission fluidis leaking, flatbed equipmentor a towing dolly must beused.

Maintenance
7
Engine compartment . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Maintenance services . . . . . . . . . . . . . . . . . . . . . . . . 7-4
• Owner’s responsibility . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
• Owner maintenance precautions . . . . . . . . . . . . . . . . . 7-5
Owner maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
• Owner maintenance schedule . . . . . . . . . . . . . . . . . . . 7-6
Scheduled maintenance service. . . . . . . . . . . . . . . . 7-8
Explanation of scheduled maintenance items . . . 7-14
Checking fluid levels . . . . . . . . . . . . . . . . . . . . . . . 7-17
Engine oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18
• Checking the engine oil level . . . . . . . . . . . . . . . . . . . 7-18
• Changing the engine oil and filter . . . . . . . . . . . . . . . 7-19
Engine maintenance mode (for plug-in Hybrid). . 7-20
• Starting Engine Maintenance Mode . . . . . . . . . . . . . 7-20
• Stopping Engine Maintenance Mode. . . . . . . . . . . . . 7-20
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21\
• Checking the coolant level . . . . . . . . . . . . . . . . . . . . . 7-21
• Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
• Inverter coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
• Recommended coolant . . . . . . . . . . . . . . . . . . . . . . . . 7-23
• Changing the coolant . . . . . . . . . . . . . . . . . . . . . . . . . 7-24
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-25
• Checking the brake fluid level . . . . . . . . . . . . . . . . . . 7-25
Washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-26
• Checking the washer fluid level . . . . . . . . . . . . . . . . . 7-26
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-27
• Checking the parking brake. . . . . . . . . . . . . . . . . . . . 7-27
Air cleaner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-28
• Filter replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-28
Climate control air filter . . . . . . . . . . . . . . . . . . . . 7-30
• Filter inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-30
Wiper blades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32
• Blade inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32
• Blade replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-\
36
• For best battery service . . . . . . . . . . . . . . . . . . . . . . . 7-36
• Recharging the battery . . . . . . . . . . . . . . . . . . . . . . . . 7-37
• Reset items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-38\
Tires and wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-39
• Tire care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
7-39
• Recommended cold tire inflation pressures . . . . . . . 7-39
• Tire pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-40
• Checking tire inflation pressure. . . . . . . . . . . . . . . . . 7-40
• Tire rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-41
• Wheel alignment and tire balance . . . . . . . . . . . . . . . 7-42
• Tire replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-43
• Wheel replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-43
• Tire traction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-44
• Tire maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-44
• Tire sidewall labeling . . . . . . . . . . . . . . . . . . . . . . . . . 7-44