2021 KIA NIRO stop start

H2
HEV (HYBRID ELECTRIC VEHICLE) SYSTEM
The Kia Hybrid Electric Vehicle (HEV) uses both the gasoline engine and the electric motor for power. The electric
motor is run by a 240V high-voltage HEV battery.
Depending on the driving conditions, the HEV computer selectively operates between the engine and the electric
motor or even both at the same time.
Fuel efficiency increases when the engine is at idle, or when the vehicle is driven by the electric motor with the HEV
battery.
The HEV battery charge must be maintained because, at times, the engine may come on even at idle to act as a gen-
erator. Charging also occurs when decelerating or by regenerative braking.
ODEP057140L
Startup/Low speed cruise
Acceleration High speed cruiseDecelerationStop
Electric motorElectric motor+EngineEngine+
Motor or MotorChargingEngine OFF

H13
7. Check if the charging cable con-
nection indicator of the high volt-
age battery in the instrument clus-
ter is turned ON.
Charging does not occur when the
indicator is OFF. When the charg-
ing connector is not connected
properly, reconnect the charging
cable to charge.✽ ✽
NOTICE
• Charging is in progress only when
the shift lever is in P (Park).
Charging the battery with the
Engine Start/Stop button in the
ACC position is possible. However,
it may discharge the 12-V battery.
Thus, if possible, charge the bat-
tery with the Engine Start/Stop
button in the OFF position.
• The charging process is interrupt-
ed temporarily when the shift lever
is moved from P (Park) to Not P(R
(Reverse)/N (Neutral)/D (Drive))
during charging. To resume(restart)
charging, move the shift lever to the
P (park) position. Then, the charging
process is resumed(restarted).
ODEPQ019027
ODEPQ019125
■Type A
■Type B

H19
10. Check if the charging cable con-
nection indicator of the high volt-
age battery in the instrument
cluster is turned ON.Charging does not occur when the
indicator is OFF. When the charg-
ing connector is not connected
properly, reconnect the charging
cable to charge.
✽ ✽
NOTICE
• The charging is in progress only
with the shift lever is in P (Park).
Charging the battery with the
Engine Start/Stop button in the
ACC position is possible. However,
it may discharge the 12-V battery.
Thus, if possible, charge the bat-
tery with the Engine Start/Stop
button in the OFF position.
• Moving the shift lever from P
(Park) to R (Reverse)/N(Neutral)/D
(Drive) stops the charging process.
To restart the charging process,
move the shift lever to P (Park),
press the Engine Start/Stop button
to the OFF position, and discon-
nect the charging cable. Then,
connect the charging cable and
restart the vehicle again.
ODEPQ019027
ODEPQ019125
■Type A
■Type B

H31
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 from the accelerator by anticipat-
ing a decelerating event* based on
the analysis of driving routes and
road conditions according to the nav-
igation system. It encourages the
driver to remove foot from accelerator
pedal and allow coasting down the
road with EV motor only. This helps
prevent unnecessary fuel consump-
tion and increases fuel efficiency.
❈Examples of a deceleration events
is going down an extended hill,
slowing down while approaching a
toll booth, and approaching
reduced speed zones.
Press the Engine Start/Stop button
and put the shift lever in P(Park). In
the User Settings Mode, select
Driving Assist, Coasting Guide, and
then On to turn on the system.
Cancel the selection of coasting
guide to turn off the system. For the
explanation of the system, press and
hold the [OK] button.

To activate the system, take the fol-
lowing procedures. Enter your desti-
nation information on the navigation
and select the driving route. Then,
satisfy the following.
- The driving speed should be
between 37 mph (60 km/h) and 99
mph (160 km/h).
❈The operating speed may vary due
to difference between instrument
cluster and navigation effected by
tire inflation level.
✽ ✽
NOTICE
Coasting guide is only a supplemen-
tal system to assist with fuel-efficient
driving. Thus, the operating condi-
tions may be different in accordance
with traffic/road conditions (i.e.
driving in a traffic jam, driving on a
slope, driving on a curve). Thus,
take the actual driving conditions
into consideration, such as distances
from the vehicles ahead/ behind,
while referring to the coasting guide
system as guidance.

H32
LCD Display Messages
Check Hybrid system
This message is displayed when
there is a problem with the hybrid
control system.
Refrain from driving when the warn-
ing message is displayed.
In this case, have your vehicle inspect-
ed by an authorized Kia dealer.
Check Hybrid system.
Turn off engine
This message is displayed when
there is a problem with the hybrid
system. The " " indicator will blink
and a warning chime will sound until
the problem is solved.
In this case, have your vehicle inspect-
ed by an authorized Kia dealer.
Check Hybrid system.
Do not start engine.
This message is displayed when the
hybrid battery power (SOC) level is
low. A warning chime will sound until
the problem is solved.
In this case, park the vehicle in a safe
location and have your vehicle
inspected by an authorized Kia dealer.
Stop vehicle and check power
Supply
This message is displayed when a
failure occurs in the power supply
system.
In this case, park the vehicle in a safe
location and have your vehicle
inspected by an authorized Kia dealer.
Refill inverter coolant
This message is displayed when the
inverter coolant is nearly empty.
You should refill the inverter coolant.
In this case, have your vehicle inspect-
ed by an authorized Kia dealer.
Stop vehicle and check brakes
This message is displayed when a
failure occurs in the brake system.
In this case, park the vehicle in a safe
location and have your vehicle
inspected by an authorized Kia dealer.
Check brakes
This message is displayed when the
brake performance is low or the
regenerative brake does not work
properly due to a failure in the brake
system.
In this case, it may take longer for the
brake pedal to operate and the brak-
ing distance may become longer.
DRIVING THE HYBRID/PLUG-IN HYBRID VEHICLE (CONT.)

H38
AUX. BATTERY SAVER+ (For
Plug-in Hybrid, if equipped)
The Aux. Battery Saver+ is a function
that monitors the charging status of
the 12V auxiliary battery.
If the auxiliary battery level is low, the
main high voltage battery charges
the auxiliary battery.
✽ ✽
NOTICE
The Aux. Battery Saver+ function will
be ON when the vehicle is delivered. If
the function is not needed, you may
turn it off in the Users Settings mode
on the LCD display. For more infor-
mation, refer to the "System setting"
on the following page.
Mode

When the vehicle is OFF with all
doors, hood and liftgate closed, the
Aux. Battery Saver+ periodically acti-
vates according to the auxiliary bat-
tery status.

When the engine start/stop button is
in the ON position with the charging
connector plugged in, this function
activates according to the auxiliary
battery status to prevent over-dis-
charge of the auxiliary battery.
✽ ✽
NOTICE
The Aux. Battery Saver+ activates
for a maximum of 20 minutes. If the
Aux. Battery Saver+ function acti-
vates more than 10 times consecu-
tively, in the Automatic Mode, this
function will stop activating, judg-
ing that there is a problem with the
auxiliary battery. In this case, drive
the vehicle for some period of time.
The function will start activating if
the auxiliary battery returns to nor-
mal.
✽ ✽
NOTICE
If the Aux. Battery Saver+ function
was activated, the high voltage bat-
tery level may have decreased.
CAUTION
The Aux. Battery Saver+ func-
tion cannot prevent battery dis-
charge if the auxiliary battery is
damaged, worn out, used as a
power supply or if unauthorized
electronic devices are used.
PLUG-IN HYBRID ENERGY FLOW

H39
System setting
The driver can activate the Aux.
Battery Saver+ function by placing
the engine start/stop button to the
ON position and by selecting:
"User Settings ➞Other Features ➞
Aux. Battery Saver+"WARNING
The Aux. Battery Saver+ relies
on the high voltage battery to
charge the 12V battery. The
charging indicator lamp will blink
rapidly when this is occurring.
To reduce the risk of electrical
shock, do not touch any high
voltage components (orange-
colored) or other electrical
devices while charging is occur-
ring.

H40
Starting the Hybrid System
1.Carry the smart key into the vehicle.
2.Make sure the parking brake is
firmly applied.
3.Place the shift lever in the P(Park)
position.
In N (neutral) position, you cannot
start the vehicle.
4.Depress the brake pedal.
5.Press the engine start/stop button.
6.The engine should be started with-
out pressing the accelerator. In
extremely cold weather or after the
vehicle has not been operated for
several days, let the engine warm up
without depressing the accelerator.

vehicle, if it is far away from you,
the engine may not start.
ton is in the ACC or ON position
and if any door is open, the sys-
tem checks for the smart key. If
the smart key is not in the vehicle,
the warning, "Key is not in vehi-
cle" will come on, and if all doors
are closed, the chime will also
sound for about 5 seconds. The
indicator will turn off while the
vehicle is moving. Keep the smart
key in the vehicle when using the
ACC position or if the vehicle
engine is on.If the starting procedure is fol-
lowed, the " " symbol on the
instrument cluster will turn on. For
more details, Please check chap-
ter 4.
STARTING THE HYBRID/PLUG-IN HYBRID VEHICLE (SMART KEY)