2015 KIA OPTIMA HYBRID check engine light

Features of your vehicle
72
4
Parking Brake & Brake
Fluid Warning Light
This warning light illuminates:
Once you set the ignition switch or Engine Start/Stop Button to the ON
position.
- 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 leak on the
brake system is 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.

475
Features of your vehicle
Malfunction IndicatorLamp (MIL)
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 there is a malfunction with the emission control system.
In this case, have your vehicle
inspected by an authorized Kia
dealer.
Charging System
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 there is a malfunction with either the alternator or electrical
charging system.
If there is a malfunction with either
the alternator or electrical charging
system:
1. Drive carefully to the nearest safe location and stop your vehicle.
2. Turn the engine off and check the alternator drive belt for looseness
or breakage.
If the belt is adjusted properly,
there may be a problem in the
electrical charging system.
In this case, have your vehicle
inspected by an authorized Kia
dealer as soon as possible.
CAUTION- Malfunction Indicator
Lamp (MIL)
Driving with the MalfunctionIndicator Lamp (MIL) on maycause damage to the emissioncontrol systems which couldeffect drivability and/or fueleconomy.
CAUTION- Gasoline
Engine
If the Malfunction IndicatorLamp (MIL) illuminates, poten-tial catalytic converter damageis possible which could result inloss of engine power.
In this case, have your vehicleinspected by an authorized Kiadealer as soon as possible.

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.

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

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