check engine KIA NIRO PLUG-IN HYBRID 2018 Workshop Manual

What to do in an emergency
10
7
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 warning
flasher 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 whether the engine coolant
temperature is low enough by
checking its temperature. 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- Under the
Hood
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.

711
What to do in an emergency
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- Radiator Cap
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
14
7
✽
✽
NOTICE
If the TPMS, Low Tire Pressure
indicator does not illuminate for 3
seconds when the ignition switch is
turned to the ON position or engine
is running, or if they remain illumi-
nated after coming on for approxi-
mately 3 seconds, take your vehicle
to your nearest authorized Kia deal-
er and have the system checked.
Low tire pressure
telltale
Low tire pressure position tell-
tale
When the tire pressure monitoring
system warning indicators are illumi-
nated, one or more of your tires is
significantly under-inflated.
If the telltale illuminates, immediately
reduce your speed, avoid hard cor-
nering and anticipate increased stop-
ping distances. You should stop and
check your tires as soon as possible. Inflate the tires to the proper pres-
sure as indicated on the vehicle’s
placard or tire inflation pressure label
located on the driver’s side center pil-
lar outer panel. If you cannot reach a
service station or if the tire cannot
hold the newly added air, replace the
low pressure tire with the spare tire.
Then the TPMS malfunction indicator
and the Low Tire Pressure telltale
may turn on and illuminate after
restarting and about 20 minutes of
continuous driving before you have
the low pressure tire repaired and
replaced on the vehicle.
In winter or cold weather, the low tire
pressure telltale may be illuminated if
the tire pressure was adjusted to the
recommended tire inflation pressure
in warm weather. It does not mean
your TPMS is malfunctioning
because the decreased temperature
leads to a proportional lowering of
tire pressure.
ODE067053N

What to do in an emergency
24
7
6. Ensure that the compressor is
switched off, position 0.
7 Connect between compressor and the vehicle power outlet (4) using
the cable and connectors.
8. With the engine start/stop button position on or ignition switch posi-
tion on, switch on the compressor
and let it run for approximately 5 ~
7 minutes to fill the sealant up to
proper pressure. (refer to the Tire
and Wheels, chapter 9). The infla-
tion pressure of the tire after filling
is unimportant and will be
checked/corrected later. Be careful
not to overinflate the tire and stay
away from the tire when filling it. 9. Switch off the compressor.
10. Detach the hoses from the
sealant bottle connector and
from the tire valve.
Return the Tire Mobility Kit to its stor-
age location in the vehicle.
Distributing the sealant
11. Immediately drive approximately 4 ~ 6 miles (7 ~ 10 km or, about
10 min) to evenly distribute the
sealant in the tire.
Do not exceed a speed of 50 mph
(80 km/h). If possible, do not fall
below a speed of 12 mph (20 km/h).
While driving, if you experience any
unusual vibration, ride disturbance or
noise, reduce your speed and drive
with caution until you can safely pull
off of the side of the road.
ODE066008L
WARNING - Carbon monoxide
Carbon monoxide poisoning
and suffocation is possible if
the engine is left running in a
poorly ventilated or unventilat-
ed location (such as inside a
building).
ODE066040N
WARNING - Tire pressure
Do not attempt to drive your
vehicle if the tire pressure is
below 29 psi (200 kPa). This
could result in an accident due
to sudden tire failure.

Maintenance
Engine compartment . . . . . . . . . . . . . . . . . . . . . . . . 8-3
Maintenance services . . . . . . . . . . . . . . . . . . . . . . . . 8-5
• Owner’s responsibility . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
• Owner maintenance precautions . . . . . . . . . . . . . . . . . 8-6
Owner maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
• Owner maintenance schedule. . . . . . . . . . . . . . . . . . . . 8-7
Scheduled maintenance service. . . . . . . . . . . . . . . . 8-9
Explanation of scheduled maintenance items . . . 8-22
Checking fluid levels . . . . . . . . . . . . . . . . . . . . . . . 8-25
Engine oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-26
• Checking the engine oil level . . . . . . . . . . . . . . . . . . . 8-26
• Changing the engine oil and filter . . . . . . . . . . . . . . . 8-27
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-28\
• Checking the coolant level . . . . . . . . . . . . . . . . . . . . . 8-28
• Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-29
• Inverter coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-29
• Recommended coolant . . . . . . . . . . . . . . . . . . . . . . . . 8-30
• Changing the coolant . . . . . . . . . . . . . . . . . . . . . . . . . 8-32
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-33
• Checking the brake fluid level . . . . . . . . . . . . . . . . . . 8-33
Engine clutch actuator fluid . . . . . . . . . . . . . . . . . 8-34
• Checking the engine clutch actuator fluid level . . . . 8-34
Washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-36
• Checking the washer fluid level . . . . . . . . . . . . . . . . . 8-36
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-37
• Checking the parking brake. . . . . . . . . . . . . . . . . . . . 8-37
Air cleaner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-38
• Filter replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-38
Climate control air filter . . . . . . . . . . . . . . . . . . . . 8-40
• Filter inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-40
Wiper blades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-42
• Blade inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-42
• Blade replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-42
Battery (Plug-in Hybrid) . . . . . . . . . . . . . . . . . . . . 8-45
• For best battery service . . . . . . . . . . . . . . . . . . . . . . . 8-45
• Recharging the battery . . . . . . . . . . . . . . . . . . . . . . . . 8-46
• Reset items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-47\
Tires and wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-48
• Tire care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
8-48
• Recommended cold tire inflation pressures . . . . . . . 8-48
• Tire pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-49
• Checking tire inflation pressure. . . . . . . . . . . . . . . . . 8-49
• Tire rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-50
• Wheel alignment and tire balance . . . . . . . . . . . . . . . 8-51
• Tire replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-52
• Wheel replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-52
• Tire traction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-53
• Tire maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-53
• Tire sidewall labeling . . . . . . . . . . . . . . . . . . . . . . . . . 8-53
8

87
Maintenance
OWNER MAINTENANCE
The following lists are vehicle checks
and inspections that should be per-
formed by the owner or an author-
ized Kia dealer at the frequencies
indicated to help ensure safe,
dependable operation of your vehi-
cle.
Any adverse conditions should be
brought to the attention of your deal-
er as soon as possible.
These Owner Maintenance Checks
are generally not covered by war-
ranties and you may be charged for
labor, parts and lubricants used.Owner maintenance schedule
When you stop for fuel:
Check the engine oil level.
Check the coolant level in coolantreservoir.
Check the windshield washer fluid level.
Look for low or under-inflated tires.
While operating your vehicle:
Note any changes in the sound of the exhaust or any smell of
exhaust fumes in the vehicle.
Check for vibrations in the steering wheel. Notice any increased steer-
ing effort or looseness in the steer-
ing wheel, or change in its straight-
ahead position.
Notice if your vehicle constantly turns slightly or “pulls” to one side
when traveling on smooth, level
road.
When stopping, listen and check for unusual sounds, pulling to one
side, increased brake pedal travel
or “hard-to-push” brake pedal.
If any slipping or changes in the operation of your transaxle occurs,
check the transaxle fluid level.
Check the dual clutch transmission P (Park) function.
Check the parking brake.
Check for fluid leaks under your vehicle (water dripping from the air
conditioning system during or after
use is normal).
WARNING- Hot coolant
Be careful when checking your
engine coolant level when the
engine is hot. Scalding hot
coolant and steam may blow
out under pressure.
WARNING
When you open the engine
hood, turn the Hybrid system
off. If not, it may result in death
or serious injury because of the
high voltage flow.

Maintenance
88
At least monthly:
Check the coolant level in theengine coolant reservoir.
Check the operation of all exterior lights, including the stoplights, turn
signals and hazard warning flash-
ers.
Check the inflation pressures of all tires including the spare.
At least twice a year
(i.e., every Spring and Fall) :
Check the radiator, heater and air conditioning hoses for leaks or
damage.
Check the windshield washer spray and wiper operation. Clean
the wiper blades with clean cloth
dampened with washer fluid.
Check the headlight alignment.
Check the muffler, exhaust pipes, shields and clamps.
Check the lap/shoulder belts for wear and function.
Check for worn tires and loose wheel lug nuts.
At least once a year :
Clean the body and door drainholes.
Lubricate the door hinges and check the hood hinges.
Lubricate the door and hood locks and latches.
Lubricate the door rubber weather- strips.
Check the air conditioning system.
Inspect and lubricate dual clutch transmission linkage and controls.
Clean the battery and terminals.
Check the brake fluid level.

Maintenance
22
8
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS
Engine oil and filter
The engine oil and filter should be
changed at the intervals specified in
the maintenance schedule. If the
vehicle is being driven in severe con-
ditions, more frequent oil and filter
changes are required.
HSG (Hybrid starter & genera-
tor) belt
The HSG belt should be changed at
the intervals specified in the mainte-
nance schedule.
Fuel filter (for gasoline)
Kia gasoline vehicle is equipped a
lifetime fuel filter that integrated with
the fuel tank. Regular maintenance
or replacement is not needed but
depends on fuel quality. If there are
some important safety matters like
fuel flow restriction, surging, loss of
power, hard starting problem etc, fuel
filter inspection or replace is needed.
The fuel filter be Inspected or
replaced by an authorized Kia dealer.
Fuel lines, fuel hoses and con-
nections
Check the fuel lines, fuel hoses and
connections for leakage and dam-
age. Have an authorized Kia dealer
replace any damaged or leaking
parts immediately.
Vapor hose and fuel filler cap
The vapor hose and fuel filler cap
should be inspected at those inter-
vals specified in the maintenance
schedule. Make sure that a new
vapor hose or fuel filler cap is cor-
rectly replaced.

823
Maintenance
Vacuum crankcase ventilation
hoses
Inspect the surface of hoses for evi-
dence of heat and/or mechanical
damage. Hard and brittle rubber,
cracking, tears, cuts, abrasions, and
excessive swelling indicate deterio-
ration. Particular attention should be
paid to examine those hose surfaces
nearest to high heat sources, such
as the exhaust manifold.
Inspect the hose routing to assure
that the hoses do not come in con-
tact with any heat source, sharp
edges or moving component which
might cause heat damage or
mechanical wear. Inspect all hose
connections, such as clamps and
couplings, to make sure they are
secure, and that no leaks are pres-
ent. Hoses should be replaced
immediately if there is any evidence
of deterioration or damage.
Air cleaner filter
A Genuine Kia air cleaner filter is
recommended when the filter is
replaced.
Spark plugs
Make sure to install new spark plugs
of the correct heat range.
Cooling system
Check the cooling system compo-
nents, such as the radiator, coolant
reservoir, hoses and connections for
leakage and damage. Replace any
damaged parts.
Coolant (Engine / Inverter)
The coolant should be changed at
the intervals specified in the mainte-
nance schedule.
Dual clutch transmission Fluid
Inspect the dual clutch transmission
fluid according to the maintenance
schedule.
Brake hoses and lines
Visually check for proper installation,
chafing, cracks, deterioration and
any leakage. Replace any deteriorat-
ed or damaged parts immediately.

825
Maintenance
Exhaust pipe and muffler
Visually inspect the exhaust pipes,
muffler and hangers for cracks, dete-
rioration, or damage. Start the
engine and listen carefully for any
exhaust gas leakage. Tighten con-
nections or replace parts as neces-
sary.
Suspension mounting bolts
Check the suspension connections
for looseness or damage. Retighten
to the specified torque.
Steering gear box, linkage &
boots/lower arm ball joint
With the vehicle stopped and engine
off, check for excessive free-play in
the steering wheel.
Check the linkage for bends or dam-
age. Check the dust boots and ball
joints for deterioration, cracks, or
damage. Replace any damaged
parts.
Drive shafts and boots
Check the drive shafts, boots and
clamps for cracks, deterioration, or
damage. Replace any damaged
parts and, if necessary, repack the
grease.
Air conditioning refrigerant
Check the air conditioning lines and
connections for leakage and dam-
age.When checking engine oil, engine
coolant, brake fluid, and washer fluid,
always be sure to clean the area
around any filler plug, drain plug, or
dipstick before checking or draining
any lubricant or fluid. This is espe-
cially important in dusty or sandy
areas and when the vehicle is used
on unpaved roads. Cleaning the plug
and dipstick areas will prevent dirt
and grit from entering the engine and
other mechanisms that could be
damaged.
CHECKING FLUID LEVELS