brakes KIA OPTIMA HYBRID 2018 Owners Manual

15
Introduction
No special break-in period is needed.
By following a few simple precautions
for the first 600 miles (1,000 km) you
may add to the performance, econo-
my and life of your vehicle.
Do not race the engine.
While driving, keep your enginespeed (rpm, or revolutions per
minute) between 2,000 rpm and
4,000 rpm.
Do not maintain a single speed for long periods of time, either fast or
slow. Varying engine speed is
needed to properly break-in the
engine.
Avoid hard stops, except in emer- gencies, to allow the brakes to seat
properly.
Don't tow a trailer during the first 1,200 miles (2,000 km) of opera-
tion. By following a few simple precautions
for the first 600 miles (1,000 km) you
may add to the performance, econo-
my and life of your vehicle.
Do not race the engine.
Avoid hard stops, except in emer-
gencies, to allow the brakes to seat
properly.
VEHICLE BREAK-IN
PROCESS HEV/PHEV POWERTRAIN

Features of your vehicle
78
4
Stop vehicle and check power
supply
This warning message illuminates
when a failure occurs in the power
supply system.
In this case, park the vehicle in a
safe location and tow your vehicle to
the nearest authorized Kia dealer
and have the vehicle inspected.
Stop vehicle to charge battery
This warning message illuminates
when the hybrid battery power
(SOC) level is low.
In this case, park the vehicle in a
safe location and wait until the hybrid
battery is charged.
Refuel to prevent Hybrid batterydamage
This warning message illuminates
when the fuel tank is nearly empty.
You should refill the fuel tank to pre-
vent hybrid battery damage.
Refill inverter coolant
This warning message illuminates
when the inverter coolant is nearly
empty.
You should refill the inverter coolant.
Check brakes
This warning message illuminates
when the brake performance is low
or the regenerative brake does not
work properly due to a failure in the
brake system.
In this case, it may take longer for the
brake pedal to operate and the brak-
ing distance may become longer.
Stop vehicle and check brakes
This warning message is displayed
when a failure occurs in the brake
system.
In this case, park the vehicle in a
safe location and tow your vehicle to
the nearest authorized Kia dealer
and have the vehicle inspected.
Coasting guide (if equipped)
A chime will sound and the coasting
guide indicator will blink four times to
inform the driver when to take the
foot off from the accelerator by antic-
ipating a decelerating event* based
on the analysis of driving routes and
road conditions of the navigation. It
encourages the driver to remove foot
from the pedal and allow coasting
down the road with EV motor only.
This helps prevent unnecessary fuel
consumption and increases fuel effi-
ciency.
❈ Example of a deceleration event is
going down an extended hill, slow-
ing down approaching a toll booth,
and approaching reduced speed
zones.

483
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 8).
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, more than normal pedal
travel and greater pedal pressure are
required to stop the vehicle.
Also, the vehicle will not stop in as
short a 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
88
4
This warning light remains on after
blinking for approximately 60 seconds
or repeats blinking and off at the
intervals of approximately 3 seconds:
When there is a malfunction with
the TPMS.
In this case, have your vehicle
inspected by an authorized Kia
dealer as soon as possible.
❈ For more details, refer to “Tire
Pressure Monitoring System
(TPMS)” in chapter 7. The TPMS cannot alert you to
severe and sudden tire damage
caused by external factors.
If you notice any vehicle instability, immediately take your foot off the
accelerator pedal, apply the brakes
gradually with light force, and slow-
ly move to a safe position off the
road.Electronic Parking Brake
(EPB) Warning Light(if equipped)
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 EPB.
In this case, have your vehicle
inspected by an authorized Kia
dealer.
✽ ✽ NOTICE- Electronic Parking
Brake (EPB) Warning Light
The Electronic Parking Brake
(EPB) Warning Light may illumi-
nate when the Electronic Stability
control (ESC) Indicator Light comes
on to indicate that the ESC is not
working properly (This does not
indicate malfunction of the EPB).
WARNING - Low tire pressure
Significantly low tire pressure makes the vehicle unstable
and can contribute to loss of
vehicle control and increased
braking distances.
Continued driving or low pres- sure tires will cause the tires to
overheat and fail.
EPB

497
Features of your vehicle
Types of warning sound
When an object is 47 in. to 24 in.(120 cm to 61 cm) from the rear
bumper: Buzzer beeps intermit-
tently.
When an object is 24 in. to 12 in. (60 cm to 31 cm) from the rear
bumper: Buzzer beeps more fre-
quently.
When an object is within 12 in. (30 cm) of the rear bumper:
Buzzer sounds continuously.
Non-operational conditions of
rear parking assist system
The rear parking assist system
may not operate properly when:
1. Moisture is frozen to the sensor. (It will operate normally once the
moisture clears.
2. The sensor is covered with foreign matter, such as snow or water, or
the sensor cover is blocked. (It will
operate normally when the materi-
al is removed or the sensor is no
longer blocked.)
3. Driving on uneven road surfaces (unpaved roads, gravel, bumps,
gradient).
4. Objects generating excessive noise (vehicle horns, loud motor-
cycle engines, or truck air brakes)
are within range of the sensor.
5. Heavy rain or water spray exists.
6. Wireless transmitters or mobile phones are within range of the
sensor.
7. The sensor is covered with snow.
8. Trailer towing The detecting range may decrease
when:
1. The sensor is covered with foreign
matter such as snow or water.
(The sensing range will return to
normal when removed.)
2. Outside air temperature is extremely hot or cold.
The following objects may not be
recognized by the sensor:
1. Sharp or slim objects such as ropes, chains or small poles.
2. Objects which tend to absorb the sensor frequency such as clothes,
sound absorbent material or snow.
3. Undetectable objects smaller than 40 in. (1 m) in height and narrower
than 6 in. (14 cm) in diameter.

Driving your vehicle
12
6
For smooth operation, depress the
brake pedal and the lock release but-ton when shifting from N (Neutral) toa forward or reverse gear.
When stopped on an incline, do not
hold the vehicle with the engine
power. Use the service brake or the
parking brake.
Transaxle ranges
The indicator in the instrument clus-
ter displays the shift lever position
when the engine start/stop button is
in the ON position.
P (Park)
Always come to a complete stop
before shifting into P (Park). This
position locks the transaxle and pre-
vents the drive wheels from rotating.
Shifting into P (Park) while the vehi-
cle is in motion will cause the drive
wheels to lock which will cause you
to lose control of the vehicle.
To shift from P (Park), you must
depress firmly on the brake pedal
and make sure your foot is off the
accelerator pedal.
If you have done all of the above
and still cannot shift the lever out of
P (Park), see "Shift-lock override" in
this chapter.
The shift lever must be in P (Park)
before turning the hybrid system off.
WARNING- Leaving
Vehicle
Before leaving the driver’s seat,
always make sure the shift lever
is in the P (Park) position; then
set the parking brake fully and
shut the engine off. Do not use
the P position in place of the
parking brake. Always make
sure the shift lever is locked in
the P position and set the park-
ing brake fully. Unexpected and
sudden vehicle movement can
occur if these precautions are
not followed.
CAUTION- Transaxle
To avoid damage to your transaxle, do not accelerate theengine in R (Reverse) or any for-ward gear position with thebrakes on. The transaxle may bedamaged if you shift into P(Park) while the vehicle is inmotion.

613
Driving your vehicle
R (Reverse)
Use this position to drive the vehicle
backward.N (Neutral)
The wheels and transaxle are not
engaged. The vehicle will roll freely
even on the slightest incline unless
the parking brake or service brakes
are applied.
- Parking in N (Neutral) gear
Follow below steps when parking
and you want the vehicle to move
when pushed.
1. After parking your vehicle, step on
the brake pedal and move the
transaxle shift lever to P (Park)
with the ignition button in ON or
while the engine is running.
2. If the parking brake is applied, unlock the parking brake.
- For EPB (Electronic Parking Brake) equipped vehicles, push
the brake pedal with the ignition
button in [ON] or while the
engine is running to disengage
the parking brake. If AUTO
HOLD function is used while
driving (If AUTO HOLD indicator
is on in the cluster), press AUTO
HOLD switch and AUTO HOLD
function should be turn off. 3. While depressing the brake pedal,
turn the ignition button OFF.
- For smart key equipped vehicles, the ignition switch can be moved
to OFF only when the shift lever
is in P (Park).
4. Change the gear shift lever to N (Neutral) while pressing the brake
pedal and pushing [SHIFT LOCK
RELEASE] button or inserting,
pressing down a tool (e.g. flathead
screw-driver) into the [SHIFT
LOCK RELEASE] access hole at
the same time. Then, the vehicle
will move when external force is
applied.
CAUTION- Shifting
Always come to a complete stopbefore shifting into or out of R(Reverse); you may damage thetransaxle if you shift into R(Reverse) while the vehicle is inmotion, except when “Rockingthe vehicle” explained in thischapter.

617
Driving your vehicle
5. Move the shift lever.
6. Remove the tool from the shiftlockoverride access hole then install
the cap.
7. Have your vehicle inspected by an authorized Kia dealer.
If your vehicle is equipped with
ENGINE START/STOP button, the
button will not change to the OFF
position unless the shift lever is in the
P (Park) position.Good driving practices
Never move the gear shift lever from P (Park) to any other position with
the accelerator pedal depressed.
Never move the gear shift lever into P (Park) when the vehicle is in
motion.
Slow down before shifting to a lower gear. Otherwise, the lower
gear may not be engaged.
Always use the parking brake. Do not depend on placing the
transaxle in P (Park) to keep the
vehicle from moving.
Optimum vehicle performance and economy is obtained by smoothly
depressing and releasing the
accelerator pedal.
✽ ✽ NOTICE- Kickdown
Mechanism
Use the kickdown mechanism for
maximum acceleration. Depress the
accelerator pedal beyond the pres-
sure point. The automatic transaxle
will shift to a lower gear depending
on the engine speed.
Moving up a steep grade from astanding start
To move up a steep grade from a
standing start, depress the brake
pedal, shift the shift lever to D
(Drive). Select the appropriate gear
depending on load weight and steep-
ness of the grade, and release the
parking brake. Depress the accelera-
tor gradually while releasing the
service brakes.

Driving your vehicle
18
6
Power brakes
Your vehicle has power-assisted
brakes that adjust automatically
through normal usage.
If the hybrid system is not on or is
turned off while driving, the power
assist for the brakes will not work.
You can still stop your vehicle by
applying greater force to the brake
pedal than typical. The stopping dis-
tance, however, will be longer than
with power brakes.
When the hybrid system is not on,
the reserve brake power is partially
depleted each time the brake pedal
is applied. Do not pump the brake
pedal when the power assist has
been interrupted.
Pump the brake pedal only when
necessary to maintain steering con-
trol on slippery surfaces. Wet brakes may impair the vehicle’s
ability to safely slow down; the vehi-
cle may also pull to one side when
the brakes are applied. Applying the
brakes lightly will indicate whether
they have been affected in this way.
Always test your brakes in this fash-
ion after driving through deep water.
To dry the brakes, apply them lightly
while maintaining a safe forward
speed until brake performance
returns to normal.
✽ ✽
NOTICE
Do not depress the brake pedal con-
tinuously without the " " indica-
tor ON. The battery may be dis-
charged.
BRAKE SYSTEM
WARNING- Steep hill
braking
Avoid continuous application of
the brakes when descending a
long or steep hill by shifting to a
lower gear. Continuous brake
application will cause the
brakes to overheat and could
result in a temporary loss of
braking performance.
WARNING- HEV driving down hill
Do not turn off the Hybrid sys-
tem while going down a hill. The
brake booster may not work
sufficiently and the braking dis-
tance may be longer.
CAUTION- Brake Pedal
Do not drive with your foot rest- ing on the brake pedal. This willcreate abnormally high braketemperatures which can causeexcessive brake lining and padwear.

619
Driving your vehicle
In the event of brake failure
If service brakes fail to operate while
the vehicle is in motion, you can
make an emergency stop with the
parking brake. The stopping dis-
tance, however, will be much greater
than normal.
Disc brakes wear indicator
When your brake pads are worn and
new pads are required, you will hear
a high-pitched warning sound from
your front brakes or rear brakes. You
may hear this sound come and go or
it may occur whenever you depress
the brake pedal.
Please remember that some driving
conditions or climates may cause a
brake squeal when you first apply (or
lightly apply) the brakes. This is nor-
mal and does not indicate a problem
with your brakes.
Always replace the front or rear
brake pads as pairs.
WARNING- Parkingbrake
Avoid applying the parking
brake to stop the vehicle while it
is moving except in an emer-
gency situation. Applying the
parking brake while the vehicle
is moving at normal speeds can
cause a sudden loss of control
of the vehicle. If you must use
the parking brake to stop the
vehicle, use great caution in
applying the brake.
WARNING- Brake wear
Do not ignore high pitched wear
sounds from your brakes. If you
ignore this audible warning, you
will eventually lose braking per-
formance, which could lead to a
serious accident.
CAUTION- Replace brake pads
Do not continue to drive withworn brake pads. Continuing todrive with worn brake pads candamage the braking system andresult in costly brake repairs.