2012 KIA Optima Hybrid Hybrid system

Features of your vehicle
86
4
Battery saver function
The purpose of this feature is to pre-
vent the battery from being dis-
charged. The system automatically
turns off the parking lights when the
driver removes the ignition key and
opens the driver- side door.
With this feature, the parking lights will turn off automatically if the driver parks
on the side of the road at night.
If necessary, to keep the lights on
when the Hybrid System is turned off,
perform the following
1) Open the driver-side door.
2) Turn the parking lights OFF and ON again using the light switch on the
steering column.
Daytime running light
Daytime Running Lights (DRL) can make
it easier for others to see the front of your
vehicle during the day. DRL can be help-
ful in many different driving conditions,
and it is especially helpful after dawn and
before sunset.
The DRL system will turn OFF when:
1. The headlight switch is ON.
2. The parking brake is applied.
3. Engine stops.
Headlight escort function
(if equipped)
The headlights (and/or taillights) will
remain on for approximately 20 minutes
after the ignition key is removed or turned
to the ACC or LOCK position. However, if
the driver’s door is opened and closed,
the headlights are turned off after 30 sec-
onds.
The headlights can be turned off by
pressing the lock button on the transmit-
ter (or smart key) twice or turning off the
light switch from the headlight or Auto
light position.
Headlight leveling device
(if equipped)
Automatic type
It is automatically adjusted the headlight
beam level according to the number of
the passengers and the loading weight in
the luggage area.
And it offers the proper headlight beam
under the various conditions.
LIGHTING
WARNING
If the headlights are not working
properly, have your vehicle inspect-
ed by an authorized Kia dealer.
Don't attempt to inspect or replace
the wiring yourself to prevent mal-
function.
CAUTION
If the driver gets out of the vehiclethrough other doors (except dri-ver's door), the battery saver func-tion does not operate and the head- light escort function does not turnoff automatically. Therefore, It caus-es the battery to be discharged. In this case, make sure to turn off thelamp before getting out of the vehi-cle.

4107
Features of your vehicle
✽
✽NOTICE
• Replace the filter according to the
Maintenance Schedule.
If the vehicle is being driven in severe
conditions such as dusty, rough roads,
more frequent climate control air fil-
ter inspections and changes are
required.
• When the air flow rate suddenly decreases, the system should be
checked at an authorized Kia dealer.
Checking the amount of air con-
ditioner refrigerant and compres-
sor lubricant
When the amount of refrigerant is low,
the performance of the air conditioning is
reduced. Overfilling also has a negative
influence on the air conditioning system.
Therefore, if abnormal operation is
found, have the system inspected by an
authorized Kia dealer.
✽ ✽ NOTICE
It is important that the correct type and
amount of oil and refrigerant is used.
Otherwise, damage to the compressor
and abnormal system operation may
occur.
WARNING
The air conditioning system for the
Hybrid vehicle should be serviced
by an authorized Kia dealer. The
Hybrid air conditioning system is
connected to the high voltage sys-
tem and requires special fluids,
tools and service procedures.
Improperly servicing the Hybrid air
conditioning system could result in
electrical shock, serious injury, or
even death.

5
Before driving / 5-3
ENGINE START/STOP button / 5-5
Starting the hybrid system / 5-7
Automatic transaxle / 5-9
Brake system / 5-14
Cruise control system / 5-27
Economical operation / 5-31
Special driving conditions / 5-33
Winter driving / 5-37
Vehicle load limit / 5-40
Vehicle weight / 5-45
Trailer towing / 5-45
Driving your vehicle

Driving your vehicle
65
ON
Press the ENGINE START/STOP button
while it is in the ACC position without
depressing the brake pedal.
The warning lights can be checked
before the engine is started. Do not leave
the ENGINE START/STOP button in the
ON position for a long time. The battery
may discharge, because the engine is
not running.
START/RUN
To start the hybrid system, depress the
brake pedal and press the ENGINE
START/ STOP button with the shift lever
in the P (Park) or the N (Normal) position.
For your safety, start the hybrid system
with the shift lever in the P (Park) posi-
tion.
If you press the ENGINE START/STOP
button without depressing the brake
pedal, the hybrid system will not start
and the button will change as follow:
OFF ➔ ACC ➔ON ➔OFF If you leave the ENGINE START/ STOP
button in the ACC or ON position for a
long time, the battery will discharge.
Green indicatorNot illuminated WARNING - Starting
vehicle
Never press the ENGINE
START/STOP button while the vehi-
cle is in motion. This would result in
loss of directional control and brak-
ing function, which could cause an
accident.

57
Driving your vehicle
Starting the hybrid system with a
smart key (if equipped)
1. Carry the smart key or leave it insidethe vehicle.
2. Make sure the parking brake is firmly applied
3. Place the transaxle shift lever in P (Park).
4. Press the ENGINE START/STOP but- ton while depressing the brake pedal.
5. In extremely cold weather (below -18°C (0°F) or after the vehicle has not
been operated for several days, let the
engine warm up without depressing
the accelerator. Whether the engine is cold or warm, it
should be started without depressing the
accelerator.
Even if the smart key is in the vehicle,
if it is far away from you, the engine
may not start.
When the ENGINE START/STOP but- ton is in the ACC position or above, if
any door is opened, the system checks
for the smart key. If the smart key is not
in the vehicle, the warning "Key is not
in vehicle" will illuminate on the LCD
display. And if all doors are closed, the
chime will sound for 5 seconds. The
indicator or warning will turn off while
the vehicle is moving. Always have the
smart key with you.
STARTING THE HYBRID SYSTEM
WARNING - Unintended
vehicle movement
Never leave the smart key in the
vehicle with children or vehicle
occupants who are unfamiliar with
the vehicle operation. Pushing the
ENGINE START/STOP button while
the smart key is in the vehicle may
result in unintended engine activa-
tion and/or unintended vehicle
movement.
OTF050007
CAUTION
If ambient temperature is low, the
"READY" symbol may stay illumi-nated longer than the normal amount of time.

Driving your vehicle
85
If the battery is weak or the smart keydoes not work correctly, you can start
the engine by inserting the smart key
in the smart key holder.
When the stop lamp fuse is blown, you can't start the engine normally.
Replace the fuse with a new one. If it is
not possible, you can start the engine
by pressing the ENGINE START/STOP
button for 10 seconds while it is in the
ACC position. The engine can start
without depressing the brake pedal.
But for your safety always depress the
brake pedal before starting the engine.
Do not press the ENGINE START/ STOP
button for more than 10 seconds except
when the stop lamp fuse is blown.
OTF050006
WARNING
The Hybrid system will start only
when the smart key is in the vehi-
cle. Never allow children or any per-
son who is unfamiliar with the vehi-
cle to touch the Hybrid system
start/stop button or related parts.

Driving your vehicle
14
5
Power brakes
Your vehicle has power-assisted brakes
that adjust automatically through normal
usage.
In the event that the power-assisted
brakes lose power because of a stalled
engine or some other reason, you can
still stop your vehicle by applying greater
force to the brake pedal than you nor-
mally would. The stopping distance, how-
ever, will be longer.
When the engine is not running, 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 neces-
sary to maintain steering control on slip-
pery surfaces.
Wet brakes may impair the vehicle’s abil-
ity to safely slow down; the vehicle 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.
To dry the brakes, apply them lightly
while maintaining a safe forward speed
until brake performance returns to nor-
mal.
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
If the brake pedal does not return to
its normal position when released,
there may be a malfunction in the
brake system. Take your vehicle to
an authorized Kia dealer and have
the system checked.
WARNING
Do not turn off the Hybrid system
while going down a hill. The brake
booster may not work sufficiently
and the braking distance may be
longer.
CAUTION - Brake pedal
Do not drive with your foot restingon the brake pedal. This will createabnormally high brake tempera- tures which can cause excessivebrake lining and pad wear.
CAUTION
Do not depress the brake pedal continuously without READY sta-tus. The battery may be discharged.

517
Driving your vehicle
Check the brake warning light by turning
the ignition switch ON (do not start the
engine). This light will illuminate when the
parking brake is applied with the ignition
switch in the START or ON position.
Before driving, be sure the parking brake
is fully released and the brake warning
light is off.
If the brake warning light remains on
after the parking brake is released while
the hybrid system is in READY state,
there may be a malfunction in the brake
system. Immediate attention is neces-
sary.If at all possible, stop driving the vehicle
immediately. If that is not possible, use
extreme caution while operating the vehi-
cle and only continue to drive the vehicle
until you can reach a safe location or
repair shop.
WARNING - Parking brake
use
All vehicles should always have the
parking brake fully engaged when
parking to avoid inadvertent move-
ment of the vehicle which can
injure occupants or pedestrians.
W-75