check engine KIA NIRO HYBRID EV 2021 Manual Online

Maintenance
86 7
LIGHT BULBS
Bulb replacement precaution
Please keep extra bulbs on hand
with appropriate wattage ratings in
case of emergencies.
Refer to “Bulb Wattage” in chapter 8.
When changing lamps, first turn off
the engine at a safe place, firmly
apply the parking brake and detach
the battery’s negative (-) terminal.
Use only bulbs of the specified
wattage.✽ ✽
NOTICE
• If the light bulb or lamp connector
is removed while the lamp is still
on, the fuse box's electronic sys-
tem may log it as a malfunction.
Therefore, a lamp malfunction
incident may be recorded as a
Diagnostic Trouble Code (DTC) in
the fuse box.
• It is normal for an operating lamp
to flicker momentarily. This is due
to a stabilization function of the
vehicle’s electronic control device.
If the lamp lights up normally
after momentarily blinking, then
it is functioning as normal.
However, if the lamp continues to
flicker several times or turns off
completely, there may be an error
in the vehicle’s electronic control
device. Please have the vehicle
checked by an authorized Kia
dealer immediately.
✽ ✽
NOTICE
We recommend that the headlight
aiming be adjusted by an authorized
Kia dealer after an accident or after
the headlight assembly is reinstalled.
WARNING- Working on
the lights
Prior to working on the light,
firmly apply the parking brake,
ensure that the engine
start/stop button is in OFF posi-
tion and turn off the lights to
avoid sudden movement of the
vehicle and burning your fingers
or receiving an electric shock.
CAUTION -Light replace-
ment
Be sure to replace the burned-
out bulb with one of the same
wattage rating. Otherwise, it
may cause damage to the fuse
or electric wiring system.
CAUTION -Headlamp
Lens
To prevent damage, do not
clean the headlamp lens with
chemical solvents or strong
detergents.

7115
Maintenance
Canister
Fuel vapors generated inside the fuel
tank are absorbed and stored in the
onboard canister. When the engine is
running, the fuel vapors absorbed in
the canister are drawn into the surge
tank through the purge control sole-
noid valve.
Purge Control Solenoid Valve
(PCSV)
The purge control solenoid valve is
controlled by the Engine Control
Module (ECM); when the engine
coolant temperature is low during
idling, the PCSV closes so that evap-
orated fuel is not taken into the
engine. After the engine warms up
during ordinary driving, the PCSV
opens to introduce evaporated fuel to
the engine.
3. Exhaust emission control
system
The Exhaust Emission Control
System is a highly effective system
which controls exhaust emissions
while maintaining good vehicle per-
formance.
Engine exhaust gas precautions
(carbon monoxide)
Carbon monoxide can be present
with other exhaust fumes.
Therefore, if you smell exhaust
fumes of any kind inside your vehi-
cle, have it inspected and repaired
immediately. If you ever suspect
exhaust fumes are coming into
your vehicle, drive it only with all
the windows fully open. Have your
vehicle checked and repaired
immediately.
WARNING - Exhaust
Engine exhaust gases contain
carbon monoxide (CO). Though
colorless and odorless, it is
dangerous and could be lethal if
inhaled. Follow the instructions
on this page to avoid CO poi-
soning.

I3
Index
Power brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30
Vehicle Stability Management (VSM) . . . . . . . . . . . 5-50
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . 5-42
Bulb wattage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
Checking fluid levels . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18
Child Restraint System (CRS) . . . . . . . . . . . . . . . . . . . 3-35
Children always in the rear . . . . . . . . . . . . . . . . . . . 3-35
Installing a Child Restraint System (CRS) . . . . . . . 3-39
Selecting a Child Restraint System (CRS) . . . . . . . 3-36
Climate control air filter . . . . . . . . . . . . . . . . . . . . . . . . 7-34
Filter inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-34
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21
Changing the coolant . . . . . . . . . . . . . . . . . . . . . . . . 7-25
Checking the coolant level . . . . . . . . . . . . . . . . . . . . 7-21
Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
Inverter coolant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22
Recommended coolant . . . . . . . . . . . . . . . . . . . . . . . 7-23
Cruise Control (CC) . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-98
Cruise control switch . . . . . . . . . . . . . . . . . . . . . . . . 5-99
To cancel cruise control . . . . . . . . . . . . . . . . . . . . . 5-101
To decrease the cruising speed . . . . . . . . . . . . . . . . 5-100
To increase cruise control set speed . . . . . . . . . . . . 5-100
To resume cruising speed at more than approximately
30 km/h (20 mph) . . . . . . . . . . . . . . . . . . . . . . . . 5-102
To set cruise control speed . . . . . . . . . . . . . . . . . . . . 5-99To temporarily accelerate with the cruise control on. 5-101
To turn cruise control off . . . . . . . . . . . . . . . . . . . . 5-102
Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . 4-186
IC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-186
Defroster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-144
Rear window defroster . . . . . . . . . . . . . . . . . . . . . . 4-144
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Door locks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
Child-protector rear door lock . . . . . . . . . . . . . . . . . 4-25
Operating door locks from inside the vehicle . . . . . 4-22
Operating door locks from outside the vehicle . . . . 4-21
Driver Attention Warning (DAW). . . . . . . . . . . . . . . . . 5-90
Leading vehicle departure alert . . . . . . . . . . . . . . . . 5-95
Low activity warning . . . . . . . . . . . . . . . . . . . . . . . . 5-90
Dual Clutch Transmission (DCT). . . . . . . . . . . . . . . . . 5-16
Dual clutch transmission operation . . . . . . . . . . . . . 5-16
Good driving practices . . . . . . . . . . . . . . . . . . . . . . . 5-25
Economical operation . . . . . . . . . . . . . . . . . . . . . . . . . 5-142
Emergency starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Before Jump Starting (For Hybrid) . . . . . . . . . . . . . . 6-5
Jump starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
C
D
E

Index
4I
Method to disconnect the (-) cable for regular
maintenance (For Hybrid) . . . . . . . . . . . . . . . . . . . . 6-7
Push-starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
Emission control system . . . . . . . . . . . . . . . . . . . . . . . 7-114
Crankcase emission control system . . . . . . . . . . . . 7-114
Evaporative emission control (including ORVR:
Onboard Refueling Vapor Recovery) system. . . . 7-114
Exhaust emission control system . . . . . . . . . . . . . . 7-115
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Engine clutch actuator fluid . . . . . . . . . . . . . . . . . . . . . 7-28
Checking the engine clutch actuator fluid level. . . . 7-28
Engine compartment . . . . . . . . . . . . . . . . . . . . . . . . 2-6, 7-4
Engine number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19
Changing the engine oil and filter . . . . . . . . . . . . . . 7-20
Checking the engine oil level . . . . . . . . . . . . . . . . . . 7-19
ENGINE START/STOP button . . . . . . . . . . . . . . . . . . 5-11
ENGINE START/STOP button position . . . . . . . . . 5-11
Illuminated ENGINE START/STOP button . . . . . . 5-11
Starting the hybrid system . . . . . . . . . . . . . . . . . . . . 5-13
Explanation of scheduled maintenance items . . . . . . . 7-15
Exterior features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-180
Roof rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-180
Exterior overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2Folding key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Battery replacement . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Immobilizer system . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Key operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Limp home (override) procedure . . . . . . . . . . . . . . . 4-10
Record your key number . . . . . . . . . . . . . . . . . . . . . . 4-4
Transmitter precautions . . . . . . . . . . . . . . . . . . . . . . . 4-6
Forward Collision-Avoidance Assist (FCA)
(sensor fusion) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-53
Brake operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-58
Detecting sensors (front view camera/front radar) . 5-58
FCA warning message and system control . . . . . . . 5-56
Limitation of the system . . . . . . . . . . . . . . . . . . . . . 5-62
System malfunction . . . . . . . . . . . . . . . . . . . . . . . . . 5-60
System setting and activation . . . . . . . . . . . . . . . . . . 5-53
Forward/Reverse Parking Distance Warning (PDW) . 4-124
Non-operational conditions of Forward/
Reverse Parking Distance Warning system . . . . . 4-127
Operation of Parking Distance Warning system . . 4-125
Self-diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-128
Fuel filler door (Hybrid) . . . . . . . . . . . . . . . . . . . . . . . . 4-36
Closing the fuel filler door . . . . . . . . . . . . . . . . . . . . 4-37
Opening the fuel filler door . . . . . . . . . . . . . . . . . . . 4-36
Fuel filler door (Plug-in hybrid) . . . . . . . . . . . . . . . . . . 4-38
Closing the fuel filler door . . . . . . . . . . . . . . . . . . . . 4-39
Opening the fuel filler door . . . . . . . . . . . . . . . . . . . 4-38F

I5
Index
Fuel requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Do not use methanol . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Fuel additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Gasoline containing alcohol and methanol . . . . . . . . 1-2
Operation in foreign countries . . . . . . . . . . . . . . . . . . 1-4
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-58
Engine compartment fuse replacement . . . . . . . . . . 7-61
Fuse/relay panel description. . . . . . . . . . . . . . . . . . . 7-64
Inner panel fuse replacement . . . . . . . . . . . . . . . . . . 7-59
Gross vehicle weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
HEV/PHEV powertrain . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34
Closing the hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35
Opening the hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34
If An Accident Occurs . . . . . . . . . . . . . . . . . . . . . . . . . 6-44
If the engine overheats . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
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 . . . . 6-4If you have a flat tire (with spare tire) . . . . . . . . . . . . . 6-19
Changing tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20
Jack and tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19
Removing and storing the spare tire . . . . . . . . . . . . 6-20
If you have a flat tire (with Tire Mobility Kit). . . . . . . 6-28
Checking the tire inflation pressure . . . . . . . . . . . . . 6-36
Components of the Tire Mobility Kit . . . . . . . . . . . 6-32
Distributing the sealant . . . . . . . . . . . . . . . . . . . . . . 6-35
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-29
Notes on the safe use of the Tire Mobility Kit . . . . 6-30
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-38
Using the Tire Mobility Kit . . . . . . . . . . . . . . . . . . . 6-33
Important safety precautions . . . . . . . . . . . . . . . . . . . . . 3-2
Air bag hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Always wear your seat belt . . . . . . . . . . . . . . . . . . . . 3-2
Control your speed . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Driver distraction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Keep your vehicle in safe condition. . . . . . . . . . . . . . 3-3
Restrain all children . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
In case of an emergency while driving . . . . . . . . . . . . . . 6-3
If the engine stalls at a crossroad or crossing . . . . . . 6-3
If the engine stalls while driving . . . . . . . . . . . . . . . . 6-3
If you have a flat tire while driving . . . . . . . . . . . . . . 6-3
Infotainment system . . . . . . . . . . . . . . . . . . . . . . . . . . 4-182
Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-182
How vehicle radio works . . . . . . . . . . . . . . . . . . . . 4-183
USB port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-182
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