engine overheat KIA OPTIMA 2020 User Guide

Driving your vehicle
132
5
Hazardous driving conditions
When hazardous driving conditions
are encountered such as water,
snow, ice, mud, sand, or similar haz-
ards, follow these suggestions:
Drive cautiously and allow extra
distance for braking.
Avoid sudden braking or steering.
When braking with non-ABS brakes pump the brake pedal with
a light up-and-down motion until
the vehicle is stopped.
Do not pump the brake pedal on a
vehicle equipped with ABS. If stalled in snow, mud, or sand,
use the second gear. Accelerate
slowly to avoid spinning the drive
wheels.
Use sand, rock salt, or other non- slip material under the drive
wheels to provide traction when
stalled in ice, snow, or mud.
Rocking the vehicle
If it is necessary to rock the vehicle
to free it from snow, sand, or mud,
first turn the steering wheel right and
left to clear the area around your
front wheels. Then, shift back and
forth between R (Reverse) and any
forward gear in vehicles equipped
with an Automatic Transmission. Do
not race the engine, and spin the
wheels as little as possible. If you are
still stuck after a few tries, have the
vehicle pulled out by a tow vehicle to
avoid engine overheating and possi-
ble damage to the transmission.
SPECIAL DRIVING CONDITIONS
WARNING- Downshifting
Do not downshift with an auto-
matic transmission while driv-
ing on slippery surfaces. The
sudden change in tire speed
could cause the tires to skid
and result in an accident.
WARNING- Sudden
Vehicle Movement
Do not attempt to rock the vehi-
cle if people or objects are near-
by. The vehicle may suddenly
move forward or backwards as it
becomes unstuck.

5133
Driving your vehicle
The ESC system should be turned
OFF prior to rocking the vehicle.
Smooth cornering
Avoid braking or gear changing in
corners, especially when roads are
wet. Ideally, corners should always
be taken under gentle acceleration. If
you follow these suggestions, tire
wear will be held to a minimum.
Driving at night
Because night driving presents more
hazards than driving in the daylight,
here are some important tips to
remember:
Slow down and keep more dis-tance between you and other vehi-
cles, as it may be more difficult to
see at night, especially in areas
where there may not be any street
lights.
CAUTION- Vehicle rocking
Prolonged rocking may causeengine overheating, transmis-sion damage or failure, and tiredamage.
CAUTION- Spinning tires
Do not spin the wheels, espe-cially at speeds more than 56km/h (35 mph). Spinning thewheels at high speeds when thevehicle is stationary couldcause a tire to overheat whichcould result in tire damage thatmay injure bystanders.
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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.

What to do in an emergency
Road warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
• Hazard warning flasher . . . . . . . . . . . . . . . . . . . . . . . . 6-2
In case of an emergency while driving . . . . . . . . . . 6-3
• If the engine stalls at a crossroad or crossing. . . . . . . 6-3
• If you have a flat tire while driving . . . . . . . . . . . . . . . 6-3
• If the engine stalls while driving . . . . . . . . . . . . . . . . . 6-3
If the engine will not start . . . . . . . . . . . . . . . . . . . . 6-4
• If engine doesn't turn over or turns over slowly . . . . 6-4
• If engine turns over normally but does not start . . . . 6-4
Emergency starting . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
• Jump starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
• Push-starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
If the engine overheats . . . . . . . . . . . . . . . . . . . . . . . 6-6
Tire Pressure Monitoring System (TPMS) . . . . . . 6-9
• Check tire pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
• Low tire pressure position telltale . . . . . . . . . . . . . . . 6-11
• Changing a tire with TPMS . . . . . . . . . . . . . . . . . . . . 6-13
If you have a flat tire (With Tire Mobility Kit). . 6-16
• Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
• Notes on the safe use of the Tire Mobility Kit . . . . . 6-17
• Components of the Tire Mobility Kit . . . . . . . . . . . . 6-19
• Using the Tire Mobility Kit . . . . . . . . . . . . . . . . . . . . 6-20
• Distributing the sealant. . . . . . . . . . . . . . . . . . . . . . . . 6-22
• Checking the tire inflation pressure . . . . . . . . . . . . . 6-23
• Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-\
24
• Towing service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24
• Removable towing hook . . . . . . . . . . . . . . . . . . . . . . . 6-25
• Emergency towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26
If an accident occurs . . . . . . . . . . . . . . . . . . . . . . . 6-29
6

What to do in an emergency
66
Jump starting procedure
1.Make sure the booster battery is12-volt and that its negative termi-
nal is grounded.
2.If the booster battery is in another vehicle, do not allow the vehicles to
come in contact.
3.Turn off all unnecessary electrical loads.
4.Connect the jumper cables in the exact sequence shown in the illus-
tration. First connect one end of a
jumper cable to the positive termi-
nal of the discharged battery (1),
then connect the other end to the
positive terminal of the booster
battery (2).
Proceed to connect one end of the
other jumper cable to the negative
terminal of the booster battery (3),
then the other end to a solid, sta-
tionary, metallic point (for example,
the engine lifting bracket) away
from the battery (4). Do not con-
nect it to or near any part that
moves when the engine is cranked. Do not allow the jumper cables to
contact anything except the correct
battery terminals or the correct
ground. Do not lean over the bat-
tery when making connections.
5.Start the engine of the vehicle with the booster battery and let it run at
2,000 rpm, then start the engine of
the vehicle with the discharged
battery.
If the cause of your battery discharg-ing is not apparent, you should haveyour vehicle checked by an author-ized Kia dealer.
Push-starting
Vehicles equipped with automatic
transmission lock system cannot be
push-started.
Follow the directions in this section
for jump-starting.
WARNING - Tow starting
vehicle
Never tow a vehicle to start it.
When the engine starts, the
vehicle can suddenly surge for-
ward and could cause a colli-
sion with the tow vehicle.
WARNING - Battery cables
Do not connect the jumper cable
from the negative terminal of the
booster battery to the negative
terminal of the discharged bat-
tery. This can cause the dis-
charged battery to overheat and
crack, releasing battery acid.
Make sure to connect one end of
the jumper cable to the negative
terminal of the booster battery,
and the other end to a metallic
point, far away from the battery.

67
What to do in an emergency
IF THE ENGINE OVERHEATS
If your temperature gauge indicates
overheating, you will experience a
loss of power, or hear loud pinging or
knocking, the engine is probably too
hot. If this happens, you should:
1. Turn on the emergency warningflasher and stop in a safe place.
Move the shift lever to P (Park)
and engage the parking brake.
2. If hot steam does not come out from the engine room, carefully
open the engine room and check
whether the water pump connec-
tor is properly engaged. If the con-
nector is not properly engaged,
stop the engine immediately and
properly engage the connector.
Then, turn the engine on.
3. Turn on the air conditioner. 4. If the “HEV Warning” light turns on
in the driver instrument cluster, or
engine coolant or hot steam emits
from the engine coolant filler, stop
the engine immediately. Then, call
the nearest authorized Kia dealer
for assistance. If the “Engine
Warning” light remains illuminated
or the engine coolant is not flowing
out, keep the engine running.
Open the engine hood for ventila-
tion to help cool down the engine. 5. Check the coolant temperature
gauge on the instrument cluster to
make sure the coolant tempera-
ture is sufficiently cooled down. If
the engine coolant level is low,
please check the connecting parts
between the radiator hose, heater
hose, and water pump for any
signs of leakage. When there is no
sign of leakage, please refill the
engine coolant. If causes and
signs of engine overheating such
as warning light illumination,
engine coolant leakage, or cooling
fan malfunction are found, stop the
vehicle the earliest. Then, call the
nearest authorized Kia dealer for
assistance.
WARNING
While the engine is running,
keep hair, hands and clothing
away from moving parts such
as the fan and drive belts to pre-
vent injury.

What to do in an emergency
86
6. If you cannot find the cause of theoverheating, wait until the engine
temperature has returned to nor-
mal. Then, if coolant has been lost,
carefully add coolant to the reser-
voir to bring the fluid level in the
reservoir up to the halfway mark.
7. Proceed with caution, keeping alert for further signs of overheat-
ing. If over heating happens again,
call the nearest authorized Kia
dealer for assistance.
✽ ✽NOTICE
Serious loss of coolant indicates
there is a leak in the cooling system
and should be checked as soon as
possible by an authorized Kia dealer.
CAUTION
When the engine overheats from
low engine coolant, suddenlyadding engine coolant maycause cracks in the engine. Toprevent damage, add enginecoolant slowly in small quantities
WARNING
Do not remove the
radiator cap when the
engine is hot. This
can allow coolant to
blow out of the open-
ing and cause seri-
ous burns.

What to do in an emergency
18
6
Use of the Tire Mobility Kit may not
be effective for tire damage larger
than approximately 6 mm (0.24 in).
Please contact the nearest Kia
dealership if the tire cannot be
made roadworthy with the Tire
Mobility Kit.
Do not remove any foreign objects such as nails or screws that have
penetrated the tire.
Provided the car is outdoors, leave the engine running. Otherwise
operating the compressor may
eventually drain the car battery.
Never leave the Tire Mobility Kit unattended while it is being used.
Do not use the Tire Mobility Kit if the ambient temperature is below -30°C
(-22°F).
WARNING
• If sealant comes into contactwith skin, wash the affected
areas thoroughly. Seek med-
ical attention if irritation
develops and persists.
If sealant comes into contact with the eyes, flush eyes with
water for at least 15 minutes.
Seek medical attention if irri-
tation persists.
If sealant is swallowed, call a physician or poison control
center immediately.
WARNING
Do not use the Tire Mobility Kit
if a tire is severely damaged.
WARNING
Exposure to the sealant for a
long time may cause damage to
the body.
WARNING
Do not leave the compressor
running for more than 10 min. at
a time or it may overheat.

I5
Index
FCA sensor (front radar + front view camera) ..........5-62
FCA warning message and system control ................5-59
Limitation of the system ............................................5-65
System malfunction ....................................................5-64
System setting and activation ....................................5-57
Fuel filler lid (Hybrid) ..................................................4-31 Closing the fuel filler lid ............................................4-31
Emergency fuel filler lid release ................................4-34
Opening the fuel filler lid ..........................................4-31
Fuel filler lid (plug-in Hybrid) ......................................4-35 Closing the fuel filler lid ............................................4-37
Emergency fuel filler lid release ................................4-37
Opening the fuel filler lid ..........................................4-35
Fuel requirements ............................................................1-2 Do not use methanol ....................................................1-2
Fuel additives ................................................................1-3
Gasoline containing alcohol and methanol ..................1-2
Operation in foreign countries ......................................1-4
Fuses ........................................................................\
......7-53 Engine compartment fuse replacement ......................7-57
Fuse/relay panel description ......................................7-59
Inner panel fuse replacement ......................................7-55 Gross vehicle weight........................................................8-5\
HEV/PHEV powertrain ..................................................1-5
Hood ........................................................................\
......4-29
Closing the hood ........................................................4-30
Hood open warning ....................................................4-29
Opening the hood ........................................................4-29
If an accident occurs ......................................................6-29
If the engine overheats ....................................................6-7
If the engine will not start ..............................................6-4 If engine doesn't turn over or turns over slowly ..........6-4
If engine turns over normally but does not start ..........6-4
If you have a flat tire (With Tire Mobility Kit) ............6-16 Checking the tire inflation pressure ............................6-23
Components of the Tire Mobility Kit ........................6-19
Distributing the sealant ..............................................6-22
Introduction ................................................................6-17
Notes on the safe use of the Tire Mobility Kit ..........6-17
Technical Data ............................................................6-23
Using the Tire Mobility Kit ........................................6-20G
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