engine coolant KIA OPTIMA 2020 Owners Manual

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

455
Features of your vehicle
(1) : MODE button for changingthe LCD MODES
(2) / : MOVE scroll switch for selecting the items
(3) OK : SET/RESET button for set- ting the items or resetting
the items
❈ For the LCD modes, refer to “LCD
Display” in this chapter.Gauges
Speedometer
The speedometer indicates the
speed of the vehicle and is calibrated
in miles per hour (mph) and/or kilo-
meters per hour (km/h).
Engine coolant temperature gauge
This gauge shows the temperature
of the engine coolant when the
Engine Start/Stop button is in the ON
position.
Do not continue driving with an over-
heated engine. If your vehicle over-
heats, refer to “If the engine over-
heats” in chapter 6.
If the gauge pointer moves beyond
the normal range area toward the
“Red (H)” position, it indicates over-
heating that may damage the
engine.OJFHP048543C
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Features of your vehicle
56
4
Hybrid System Gauge
The hybrid system gauge indicates
whether the current driving condition
is fuel efficient or not.
CHARGE : Shows that the energy
made by the vehicle is
being converted to
electrical energy.
(Regenerated energy)
ECO : Shows that the vehicle is being driven in an Eco-
friendly manner.
POWER : Shows that the vehicle is exceeding the Eco-
friendly range.
✽ ✽NOTICE
Based on the hybrid system gauge,
the "EV" indicator comes on or off.
- "EV" indicator ON : Vehicle is
using the electric motor or the
gasoline engine is stopped.
- "EV" indicator OFF : Vehicle is using the gasoline engine.
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WARNING - Hot radiator
Never remove the radiator cap
when the engine is hot. The
engine coolant is under pres-
sure and could cause severe
burns. Wait until the engine is
cool before adding coolant to
the reservoir.

Features of your vehicle
80
4
Park with engine on 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.
Stop vehicle and check regen.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 the accelerator by anticipat-
ing a decelerating event* based on
an analysis of driving routes and
road conditions based on the naviga-
tion. 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
may increases fuel efficiency.
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Features of your vehicle
92
4
Engine Coolant
Temperature WarningLight
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.
Indicator Lights
Charging Cable
Connection Indicator (Plug-in hybrid)
This indicator illuminates in red when
the charging cable is connected.
Electronic StabilityControl (ESC) IndicatorLight
This indicator 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 ESC system.
In this case, have your vehicle
inspected by an authorized Kia
dealer.
This indicator light blinks:
While the ESC is operating.
❈ For more details, refer to
“Electronic Stability Control (ESC)”
in chapter 6.
CAUTION - Engine
Overheating
Do not continue driving with the
engine overheated. Otherwisethe engine may be damaged.

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.

597
Driving your vehicle
When ECO is activated:
The acceleration may slightly bereduced even though you depress
the accelerator fully.
The air conditioner performance may be limited
The shift pattern of the automatic transmission may change.
The engine noise may get louder.
The above situations are normal
conditions when the Eco System is
activated to help improve fuel effi-
ciency in certain situations.
Limitation of ECO operation:
If the following conditions occur while
ECO is operating, the system opera-
tion is limited even though there is no
change in the ECO indicator.
When the coolant temperature is low:
The system will be limited until
engine performance becomes nor-
mal.
When driving up a hill: The system will be limited to gain
power when driving uphill because
the engine torque is restricted.
When using manual mode: The system will be limited accord-
ing to the shift location.
When the accelerator pedal is deeply depressed for a few sec-
onds:
The system will be limited, judging
that the driver wants to speed up.
SPORT mode
SPORT mode focuses ondynamic driving by auto-
matically adjusting the
steering wheel, engine
and transmission system.
When the DRIVE MODE button is pressed and the SPORT mode is
selected, the SPORT indicator
(yellow) will illuminate.
Whenever the hybrid system is restarted, the Drive Mode will revert
back to ECO mode. If SPORT
mode is desired, re-select SPORT
mode from the DRIVE MODE but-
ton.
If the system is activated: - While holding vehicle speed, itmaintains the gear and RPM for
some time even though the accel-
erator pedal is not depressed.
- Up-shifting is delayed.
✽ ✽
NOTICE
In Sport drive mode, the fuel effi-
ciency may decrease.
SPORT

599
Driving your vehicle
When ECO is activated:
The acceleration may slightly bereduced eventhough you depress
the accelerator fully.
The air conditioner performance may be limited
The shift pattern of the automatic transmission may change.
The engine noise may get louder.
The above situations are normal
conditions when the ECO system is
activated to improve fuel efficiency.
Limitation of ECO operation:
If the following conditions occur while
ECO is operating, the system opera-
tion is limited even though there is no
change in the ECO indicator.
When the coolant temperature is low:
The system will be limited until
engine performance becomes nor-
mal.
When driving up a hill: The system will be limited to gain
power when driving uphill because
the engine torque is restricted.
When using manual mode: The system will be limited accord-
ing to the shift location.
When the accelerator pedal is deeply depressed for a few seconds:
The system will be limited, judging
that the driver wants to speed up.

5135
Driving your vehicle
Driving in flooded areas
Avoid driving through flooded areas
unless you are sure the water is no
higher than the bottom of the wheel
hub. Drive through any water slowly.
Allow adequate stopping distance
because brake performance may be
affected.
After driving through water, dry the
brakes by gently applying them sev-
eral times while the vehicle is moving
slowly.
Highway driving
Tires
Adjust the tire inflation pressures to
specification. Low tire inflation pres-
sures will result in overheating and
possible failure of the tires.
Avoid using worn or damaged tires
which may result in reduced traction
or tire failure.
Never exceed the maximum tire
inflation pressure shown on the tires.
Fuel, engine coolant and engine oil
High speed travel consumes more
fuel than urban motoring. Do not for-
get to check both the engine coolant
and engine oil.
Drive belt
A loose or damaged drive belt may
result in overheating of the engine.
WARNING- Under/overinflated tires
Always check the tires for proper
inflation before driving.
Underinflated or overinflated
tires can cause poor handling,
loss of vehicle control, and sud-
den tire failure leading to acci-
dents, injuries, and even death.
For proper tire pressures, refer to
“Tires and wheels” in chapter 9.
WARNING- Tire tread
Always check the tire tread
before driving your vehicle.
Worn-out tires can result in loss
of vehicle control. Worn-out tires
should be replaced as soon as
possible. For further information
and tread limits, refer to "Tires
and wheels" in chapter 8.

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.