Page 465 of 710
Driving your vehicle
142 5
Highway Auto Curve
Slowdown
If vehicle speed is high, Highway
Auto Curve Slowdown function will
temporarily decelerate your vehicle
to help you drive safely on a curve,
based on the curve information from
the navigation.
Function settings
Settings
Highway Auto Curve Slowdown
With the ENGINE START/STOP
button in the ON position, select
“Driver Assist Driving Assist
Highway Auto Curve Slowdown”
from the “User Settings (LCD dis-
play)” to turn on Navigation-based
Smart Cruise Control and deselect
to turn off the function.
✽ ✽
NOTICE
When there is a problem with
Navigation-based Smart Cruise
Control, the function cannot be set
from the “User Settings” in the LCD
display.
ODEP050009N
Page 466 of 710
5143
Driving your vehicle
Function operation
Operating conditions
Navigation-based Smart Cruise
Control is ready to operate if all of
the following conditions are satisfied:
Smart Cruise Control is operating
Driving on main roads of highways
(or motorways)
✽ ✽
NOTICE
For more details on how to operate
Smart Cruise Control, refer to
“Smart Cruise Control (SCC)” in
this chapter.
Display and control
When Navigation-based Smart
Cruise Control operates, it will be
displayed on the cluster as follows:Function standby
If the operating conditions are satis-
fied, the white ( ) indicator will
illuminate.
ODEP040101N
Page 467 of 710

Driving your vehicle
144 5
Function operating
If temporary deceleration is required
in the standby state and Navigation-
based Smart Cruise Control is oper-
ating, the green ( ) symbol will
illuminate on the cluster.
If the Set Speed Auto Change func-
tion operates, the green ( )sym-
bol and green set speed will illumi-
nate on the cluster, and an audible
alarm will sound.
✽ ✽
NOTICE
Highway Auto Curve Slowdown and
Set Speed Auto Change function
uses the same ( ) symbol.
Highway Auto Curve Slowdown
Depending on the curve ahead on
the highway (or motorway), the
vehicle will decelerate, and after
passing the curve, the vehicle will
accelerate to Smart Cruise Control
set speed.
Vehicle deceleration time may dif-
fer depending on the vehicle speed
and the degree of the curve on the
road. The higher the driving speed,
the faster the vehicle will deceler-
ate.Limitations of the function
Navigation-based Smart Cruise
Control may not operate normally
under the following circumstances:
The navigation is not working prop-
erly.
The navigation is not updated to
include the latest information about
road curvature and changes.
Speed limit and road information in
the navigation is not updated
The map information and the actu-
al road is different because of real-
time GPS data or map information
error
The navigation searches for a
route while driving
GPS signals are blocked in areas
such as a tunnel
A road that divides into two or
more roads and joins again
The driver goes off course the
route set in the navigation
The route to the destination is
changed or canceled by resetting
the navigation (including TPEG
change)
ODEP050010N
Page 468 of 710

5145
Driving your vehicle
The navigation cannot detect the
current vehicle position (ex: elevat-
ed roads including overpass adja-
cent to general roads or nearby
roads exist in a parallel way)
The vehicle enters a service sta-
tion or rest area
The speed limit of some sections
changes depending on the road
situations
Android Auto or Car Play is operat-
ing
The navigation is being updated
while driving
The navigation is being restarted
while driving
There is bad weather, such as
heavy rain, heavy snow, etc.
Driving on a road under construc-
tion
Driving on a road that is controlled
Driving on a road that is sharply
curved
[3]: Driving route, [4]: Set route, [5]: Main road,
[6]: Branch line
When there is a difference
between the navigation set route
(branch line) and the driving route
(main road), Highway Auto Curve
Slowdown function may not oper-
ate until the driving route is recog-
nized as the main road. When the vehicle's driving route is
recognized as the main road by
maintaining the main road instead
of the navigation set route,
Highway Auto Curve Slowdown
function will operate. Depending on
the distance to the curve and the
current vehicle speed, vehicle
deceleration may not be sufficient
or may decelerate rapidly.
ODEP050001N
Page 469 of 710
![KIA NIRO 2021 Owners Manual Driving your vehicle
146 5
[3]: Driving route, [4]: Main road, [5]: Set route,
[6]: Branch line
When there is a difference
between the navigation route
(main road) and the driving route
(branch line KIA NIRO 2021 Owners Manual Driving your vehicle
146 5
[3]: Driving route, [4]: Main road, [5]: Set route,
[6]: Branch line
When there is a difference
between the navigation route
(main road) and the driving route
(branch line](/manual-img/2/54800/w960_54800-468.png)
Driving your vehicle
146 5
[3]: Driving route, [4]: Main road, [5]: Set route,
[6]: Branch line
When there is a difference
between the navigation route
(main road) and the driving route
(branch line), Highway Auto Curve
Slowdown function may temporari-
ly operate due to the navigation
information of the highway curve
section.
When it is judged that you are driv-
ing out of the route by entering the
highway interchange and junction,
Highway Auto Curve Slowdown
function will not operate.
[3]: Driving route, [5]: Main road, [6]: Branch
line
If there is no destination set on the
navigation, Highway Auto Curve
Slowdown function will operate
based on the curve information on
the main road.
Even if you depart from the main
road, Highway Auto Curve
Slowdown function may temporari-
ly operate due to navigation infor-
mation of the highway curve sec-
tion
ODEP050002NOMQ4050208L
WARNING
Navigation-based Smart
Cruise Control is not a substi-
tute for safe driving practices,
but a convenience function.
Always have your eyes on the
road, and it is the responsibil-
ity of the driver to avoid violat-
ing traffic laws.
The navigation's speed limit
information may differ from
the actual speed limit informa-
tion on the road. It is the dri-
ver's responsibility to check
the speed limit on the actual
driving road or lane.
Highway Auto Curve
Slowdown will automatically
cancel when you leave the
main road of the highway.
Always pay attention to road
and driving conditions while
driving.
(Continued)
Page 470 of 710

5147
Driving your vehicle
After you pass through a tollgate
on a highway, Navigation-based
Smart Cruise Control operates
based on the first lane. If you enter
one of the other lanes, the function
might not properly decelerate.
The vehicle will accelerate if the
driver depresses the accelerate
pedal while Navigation-based
Smart Cruise Control is operating,
and function will not decelerate the
vehicle. If not depressing the accel-
erator pedal sufficiently, the vehicle
speed may decrease.
If the driver accelerates and
releases the accelerator pedal
while the Navigation-based Smart
Cruise Control is operating, the
vehicle may not decelerate suffi-
ciently or may rapidly decelerate to
a safe speed.
If the curve is too large or too
small, Navigation-based Smart
Cruise Control may not operate.✽ ✽
NOTICE
• When the function is activated, the
vehicle decelerates automatically
before reaching the curved road
according to its curvature, and the
driving speed returns to the speed
set by Smart Cruise Control after
passing the curved section.
• The speed information on the clus-
ter and navigation may differ
• The time gap could occur between
the navigation's guidance and
when Navigation-based Smart
Cruise Control operation starts
and ends.
• Even if you are driving at a speed
lower than Smart Cruise Control
set speed, acceleration may be lim-
ited by the speeding cameras and
curve sections ahead.
• If Navigation-based Smart Cruise
Control is operating while leaving
the main road to enter an inter-
change, junction, rest area, etc.,
the function may operate for a cer-
tain period of time.
(Continued)(Continued)
Navigation-based Smart
Cruise Control may not oper-
ate due to the existence of
leading vehicles and the driv-
ing conditions of the vehicle.
Always pay attention to road
and driving conditions while
driving.
When you are towing a trailer
or another vehicle, we recom-
mend that Navigation-based
Smart Cruise Control is
turned off due to safety rea-
sons.
Page 471 of 710
Driving your vehicle
148 5
(Continued)
• Deceleration by Navigation-based
Smart Cruise Control may not be
sufficient due to road conditions
such as uneven road surfaces, nar-
row lanes, etc.
Page 472 of 710

5149
Driving your vehicle
Lane Following Assist is designed to
center the vehicle in the chosen lane
by using a front view camera on top
of the windshield.
It can only become active in combi-
nation with Smart Cruise Control
and therefore assists the driver in his
task to control the lateral movement
of the vehicle.
* LFA stands for Lane Following
Assist.
LANE FOLLOWING ASSIST (LFA) (IF EQUIPPED)
ODEP059029
WARNING
It is the driver's responsibility
to operate the steering wheel
for safe driving.
Do not turn the steering wheel
hastily if LFA is operating.
LFA assists the steering
wheel control so that the vehi-
cle can stay in the center of
the lane. LFA does not auto-
matically control the steering
wheel at all times, which
means the driver must keep
hands on the wheel at all
times while driving.
When using LFA, always be
aware of surroundings and
road conditions that may
interrupt or stop LFA.
CAUTION
- Do not attach glass tinting,
stickers, accessories to the
windshield where the front
view camera near the indoor
mirror is placed.
- The removal or re-assembly of
the front view camera to
attach tinting, stickers, acces-
sories may require LFA to be
thoroughly inspected and
modified. In such case, have
your vehicle inspected by an
authorized Kia dealer.
- Inspection or modification
may be required when replac-
ing parts related to the wind-
shield or front view camera,
steering. we recommend that
the system be checked by an
authorized Kia dealer.
(Continued)