2015 KIA OPTIMA HYBRID check engine

Features of your vehicle
76
4
Engine Coolant
Temperature WarningLight (if equipped)
This warning light illuminates:
When the engine coolant tempera- ture is above 120°C (248°F). This
means that the engine is overheat-
ed and may be damaged.
If your vehicle is overheated, refer
to "Overheating" in chapter 6.
Engine Oil Pressure
Warning Light
This warning light illuminates:
Once you set the ignition switch or Engine Start/Stop Button to the ON
position.
- It remains on until the engine isstarted.
When the engine oil pressure is low.
If the engine oil pressure is low:
1. Drive carefully to the nearest safe location and stop your vehicle.
2. Turn the engine off and check the engine oil level (For more details,
refer to "Engine Oil" in section 7). If
the level is low, add oil as required.
If the warning light remains on
after adding oil or if oil is not avail-
able, have your vehicle inspected
by an authorized Kia dealer as
soon as possible.
CAUTION- Engine Overheating
Do not drive the vehicle whenthe Engine Coolant TemperatureWarning Light is illuminated orthe engine is overheated.Continuing to drive the vehiclewhile it is overheated may dam-age the engine.
CAUTION- Engine Oil
Pressure Warning Light
If the engine is not stopped immediately after the EngineOil Pressure Warning Light isilluminated, severe damagecould result.
If the warning light stays on while the engine is running,there may be serious enginedamage. In this case,
1. Stop the vehicle as soon as it is safe to do so.
2. Turn off the engine and check the oil level. If the oillevel is low, fill the engineoil to the proper level.
3. Start the engine again. If the warning light stays on afterthe engine is started, turnthe engine off immediately.In this case, have your vehi-cle inspected by an author-ized Kia dealer.

53
Driving your vehicle
Be sure the exhaust system
does not leak.
The exhaust system should be
checked whenever the vehicle is
raised to change the oil or for any
other purpose. If you hear a change
in the sound of the exhaust or if you
drive over something that strikes the
underneath side of the vehicle, have
the exhaust system checked as soon
as possible by an authorized Kia
dealer.
WARNING - Engineexhaust
Do not inhale exhaust fumes or
leave your engine running in an
enclosed area for a prolonged
time.
Exhaust fumes contain carbon
monoxide, a colorless, odorless
gas that can cause uncon-
sciousness and death by
asphyxiation.
WARNING - Open trunk
Do not drive with the trunk
open.
Poisonous exhaust gases can
enter the passenger compart-
ment. If you must drive with the
trunk open proceed as follows:
1. Close all windows.
2. Open side vents.
3. Set the air intake control at "Fresh", the air flow control at
"Floor" or "Face" and the fan
at the highest speed.WARNING - California
proposition
65
Engine exhaust and a wide vari-
ety of automobile components
and parts, including compo-
nents found in the interior fur-
nishings in a vehicle, contain or
emit chemicals known to the
State of California to cause can-
cer and birth defects and repro-
ductive harm. In addition, cer-
tain fluids contained in vehicles
and certain products of compo-
nent wear contain or emit chem-
icals known to the State of
California to cause cancer and
birth defects or other reproduc-
tive harm.

Driving your vehicle
45
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, with the exact interval
depending on the fluid. Further
details are provided in chapter 7,
“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 ignition switch is
turned to the ON position.
Release the parking brake and make sure the brake warning light
goes off.
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 hand held devices, other
equipment or vehicle systems
that distract the driver should
not be used during vehicle
operation.
WARNING - Check surrounding
Always check the surrounding
areas near your vehicle for peo-
ple, especially children, before
putting a vehicle into D (Drive)
or R (Reverse).

57
Driving your vehicle
ACC(Accessory)
Press the ENGINE START/STOP
button while it is in the OFF position
without depressing the brake pedal.
If the ENGINE START/STOP button
is in the ACC position for more than
1 hour, the button is turned off auto-
matically to prevent battery dis-
charge.
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) position.
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 follows:
OFF ➔ ACC ➔ON ➔OFF
Green indicatorNot illuminated Orange indicator

59
Driving your vehicle
Starting the hybrid system
with a smart key (if equipped)
1.Carry the smart key or leave itinside the 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 button while depressing the brake
pedal.
It should be started without depress-
ing the accelerator. 5.Do not wait for the engine to warm
up while the vehicle remains sta-
tionary.
Start driving at moderate engine
speeds. (Steep accelerating and
decelerating should be avoided.)
If the "READY" indicator is turned off while you are in motion, do not
attempt to move the shift lever to the
P(Park) position. If traffic and road
conditions permit, you may keep the
previous lever position while the
vehicle is still moving and press the
engine start/stop button in an
attempt to restart the hybrid system
without pressing the brake pedal.
If the hybrid system starts, the "READY" symbol comes on. If the
"READY" symbol does not come on,
have the vehicle checked and
repaired by an authorized Kia dealer. Even if the smart key is in the vehi-
cle, but is far away from you, the
engine may not start.
When the ENGINE START/STOP button 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 not in vehicle" will
illuminate on the LCD display. And
if all doors are closed, the chime
will sound for 5 seconds. The indi-
cator or warning will turn off while
the vehicle is moving. Always have
the smart key with you.
The hybrid system will start only
when the smart key is in the vehicle.
STARTING THE HYBRID SYSTEM
OTF054007

Driving your vehicle
20
5
Releasing the parking brake
To release the parking brake,
depress the parking brake pedal a
second time while applying the foot
brake. The pedal will automatically
extend to the fully released position. Check the brake warning light by
turning the ignition switch ON (do not
start the engine). This light will illumi-
nate 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 atten-
tion is necessary.
OTF050017
WARNING - Parking brake
use
All vehicles should always have
the parking brake fully engaged
when parking to avoid inadver-
tent movement of the vehicle
which can injure occupants or
pedestrians.
W-75

523
Driving your vehicle
EPB (electric parking brake) may be
automatically applied when:
The EPB is overheated
Requested by other systems
✽ ✽NOTICE
If the driver turns the engine off by
mistake while Auto Hold is operat-
ing, EPB will be automatically
applied. (Vehicles equipped with
Auto Hold)
System warning
If you try to drive off depressing the
accelerator pedal with the EPB
applied, but the EPB doesn't
release automatically, a warning
will sound and a message will
appear.
If the driver's seat belt is not fas- tened and the engine hood or trunk
is opened, a warning will sound
and a message will appear.
If there is a problem with the vehi- cle, a warning may sound and a
message may appear.
If the above situation occurs, depress
the brake pedal and release EPB by
pressing the EPB switch.
CAUTION
If the parking brake warning light is still on even thoughthe EPB has been released,have the system checked byan authorized Kia dealer.
Do not drive your vehicle with the EPB applied. It may causeexcessive brake pad andbrake rotor wear.
OTFH054102N

525
Driving your vehicle
System warning
If the EPB is applied while Auto Hold
is activated because of ESC
(Electronic Stability Control) signal, a
warning will sound and a message
will appear.
EPB malfunction indicator (if equipped)
This warning light illuminates if the
engine start/stop button is changed
to the ON position and goes off in
approximately 3 seconds if the sys-
tem is operation normally.
If the EPB malfunction indicator
remains on, comes on while driving,
or does not come on when the igni-
tion switch or the engine start/stop
button is changed to the ON position,
this indicates that the EPB may have
malfunctioned. If this occurs, have your vehicle
checked by an authorized Kia dealer
as soon as possible.
The EPB malfunction indicator may
illuminate when the ESC indicator
comes on to indicate that the ESC is
not working properly, but it does not
indicate a malfunction of the EPB.
OTFH054101N
OTFH054079N