2023 HYUNDAI IONIQ 5 start stop button

Instrument Cluster
4-12
Dual-diagonal braking system
Your vehicle is equipped with dual-
diagonal braking system. This means you
still have braking on two wheels even if
one of the dual systems should fail.
With only one of the dual systems
working, more than normal pedal travel
and greater pedal pressure is required to
stop the vehicle.
Also, the vehicle will not stop in as short
a distance with only a portion of the
brake system working.
If the brakes fail while you are driving,
shift to a lower gear for additional vehicle
braking and stop the vehicle as soon as it
is safe to do so.
WARNING
Parking Brake & Brake Fluid warning
light
Driving the vehicle with a warning light
ON is dangerous. If the Parking Brake
& Brake Fluid warning light illuminates
with the parking brake released, it
indicates that the brake fluid level is
low.
If this occurs, have the vehicle
inspected by an authorized HYUNDAI
dealer. Anti-lock Brake System (ABS)
warning light
This warning light illuminates:
•
When you set the Start/Stop button to the ON position.
- The ABS warning light illuminates for about 3 seconds and then goes
off.
• Whenever there is a malfunction with the ABS.
Note that the hydraulic braking
system will still be operational even if
there is a malfunction with the ABS.
If this occurs, have the vehicle
inspected by an authorized HYUNDAI
dealer.
Electronic Brake Force
Distribution (EBD) system
warning light
When the ABS warning and
Parking Brake warning lights are on
simultaneously, it may indicate a
problem with the Electronic Brake Force
Distribution system.
If this occurs, have the vehicle inspected
by an authorized HYUNDAI dealer.

04
4-13
WARNING
Electronic Brake Force Distribution
(EBD) system warning light
When both ABS and Parking Brake &
Brake Fluid warning lights are on, the
brake system will not work normally
and you may experience an unexpected
and dangerous situation during sudden
braking.
If this occurs, avoid high speed driving
and abrupt braking.
Have the vehicle inspected by an
authorized HYUNDAI dealer as soon as possible.
NOTICE
Electronic Brake Force Distribution
(EBD) system warning light
When the ABS warning light is on
or both ABS and Parking Brake &
Brake Fluid warning lights are on, the
speedometer, odometer, or tripmeter
may not work. Also, the EPS warning
light may illuminate and the steering
effort may increase or decrease.
If this occurs, have the vehicle
inspected by an authorized HYUNDAI dealer as soon as possible. Electric Power Steering (EPS)
warning light
This warning light illuminates:
•
When you set the Start/Stop button to the ON position.
- The electric powering steering warning light illuminates for about 3
seconds and then goes off.
• Whenever there is a malfunction with
the electric power steering.
If this occurs, have the vehicle
inspected by an authorized HYUNDAI
dealer.
Master warning light
This warning light illuminates:
When there is a malfunction in operation
in any of the following systems: - Forward Collision-Avoidance Assist malfunction (if equipped)
- Forward Collision-Avoidance Assist radar blocked (if equipped)
- Blind-Spot Collision Warning malfunction (if equipped)
- Blind-Spot Collision Warning radar blocked (if equipped)
- LED headlamp malfunction (if equipped)
- High Beam Assist malfunction (if equipped)
- Smart Cruise Control malfunction (if equipped)
- Smart Cruise Control radar blocked (if equipped)
- Tire Pressure Monitoring System (TPMS) malfunction
To identify the details of the warning,
look at the LCD display.

Instrument Cluster
4-14
Electronic Parking Brake
(EPB) warning light
This warning light illuminates:
•
When you set the Start/Stop button to the ON position.
- The EPB warning light illuminates for about 3 seconds and then goes
off.
• Whenever there is a malfunction with EPB.
If this occurs, have the vehicle
inspected by an authorized HYUNDAI
dealer.
Information
The Electronic Parking Brake (EPB) warning light may illuminate when
the Electronic Stability Control (ESC)
indicator light comes on to indicate that
ESC is not working properly. This does not indicate malfunction of EPB. Low tire pressure warning
light
This warning light illuminates:
•
When you set the Start/Stop button to the ON position.
- The low tire pressure warning light illuminates for approximately 3
seconds and then goes off.
• When one or more of your tires are
significantly underinflated. (The
location of the underinflated tires are
displayed on the LCD display.)
For more details, refer to “Tire Pressure
Monitoring System (TPMS)” section in
chapter 8.
This warning light remains ON after
blinking for approximately 60 seconds, or
repeatedly blinks ON and OFF in 3 second intervals:
When there is a malfunction with the TPMS.
If this occurs, have the vehicle inspected
by an authorized HYUNDAI dealer as soon as possible.
For more details, refer to “Tire Pressure
Monitoring System (TPMS)” section in
chapter 8.

04
4-15
WARNING
Safe Stopping • The TPMS cannot alert you to severe
and sudden tire damage caused by
external factors.
• If you notice any vehicle instability,
immediately take your foot off the
accelerator pedal, apply the brakes
gradually with light force, and slowly
move to a safe position off the road.
Forward safety warning light (if equipped)
This warning light illuminates:
• When you set the Start/Stop button to the ON position.
- The Forward Safety warning light illuminates for approximately 3
seconds and then goes off.
• Whenever there is a malfunction with
Forward Collision-Avoidance Assist.
If this occurs, have the vehicle inspected
by an authorized HYUNDAI dealer.
For more details, refer to “Forward
Collision-Avoidance Assist (FCA)”
section in chapter 7. Lane safety indicator light (if equipped)
This indicator light illuminates:
•
[Green] When Lane Keeping Assist
operating conditions are satisfied.
• [White] When Lane Keeping Assist
operating conditions are not satisfied.
• [Yellow] Whenever there is a
malfunction with Lane Keeping Assist.
If this occurs, have the vehicle
inspected by an authorized HYUNDAI
dealer.
For more details, refer to “Lane Keeping
Assist (LKA)” section in chapter 7.
All Wheel Drive (AWD)
warning light (if equipped)
This warning light illuminates:
Whenever there is a malfunction with the
AWD system.
If this occurs frequently, have the vehicle
inspected by an authorized HYUNDAI
dealer.
For more details, refer to "All Wheel
Drive (AWD)" section in chapter 6.

Instrument Cluster
4-16
LED headlight warning light (if equipped)
This warning light illuminates:
• When you set the Start/Stop button to the ON position.
- The LED headlight warning light illuminates for approximately 3
seconds and then goes off.
• Whenever there is a malfunction with
the LED headlight.
If this occurs, have the vehicle
inspected by an authorized HYUNDAI
dealer.
This warning light blinks:
Whenever there is a malfunction with a
LED headlight related part.
If this occurs, have the vehicle inspected
by an authorized HYUNDAI dealer.
NOTICE
Continuous driving with the LED
Headlight warning light on or blinking
can reduce LED headlight life. Icy road warning light (if equipped)
This warning light is to warn the driver
the road may be icy.
When the temperature on the outside
temperature gauge is approximately
below 4°C (40°F), the Icy Road warning
light and Outside Temperature Gauge
blinks and then illuminates. Also, the
warning chime sounds 1 time.
You can activate or deactivate Icy Road
Warning function from the Settings
menu in the infotainment system screen. Select:
- Setup → Vehicle Settings → Cluster →
Content Selection → Icy Road Warning
For detailed information, refer to the
separately supplied infotainment
system manual.
Information
If the Icy Road warning light appears
while driving, you should drive more
attentively and safely refraining from
over-speeding, rapid acceleration, sudden
braking or sharp turning, etc.

04
4-17
Electronic Stability Control
(ESC) indicator light
This indicator light illuminates:
•
When you set the Start/Stop button to the ON position.
- The Electronic Stability Control indicator light illuminates for about
3 seconds and then goes off.
• Whenever there is a malfunction with
ESC system.
If this occurs, have the vehicle
inspected by an authorized HYUNDAI
dealer.
This indicator light blinks:
While ESC is operating.
For more details, refer to “Electronic
Stability Control (ESC)” section in
chapter 6.
Electronic Stability Control
(ESC) OFF indicator light
This indicator light illuminates:
• When you set the Start/Stop button to the ON position.
- The ESC OFF indicator light illuminates for approximately 3
seconds and then goes off.
• When you deactivate ESC system by
pressing the ESC OFF button.
For more details, refer to “Electronic
Stability Control (ESC)” section in
chapter 6. Immobilizer indicator light
This indicator light illuminates for up to 30 seconds:
When the vehicle detects the smart key
in the vehicle with the Start/Stop button
in the ACC or ON position.
- Once the smart key is detected, you can start the vehicle.
- The indicator light goes off after starting the vehicle.
This indicator light blinks for a few seconds:
When the smart key is not in the vehicle.
- If the smart key is not detected, you cannot start the vehicle.
This indicator light illuminates for 2 seconds and goes off:
If the smart key is in the vehicle and the
Start/Stop button is ON, but the vehicle
cannot detect the smart key.
If this occurs, have the vehicle inspected
by an authorized HYUNDAI dealer.
This indicator light blinks:
Whenever there is a malfunction with the
immobilizer system.
If this occurs, have the vehicle inspected
by an authorized HYUNDAI dealer.

04
4-19
High Beam Assist indicator
light (if equipped)
This indicator light illuminates:
When the high-beam is on with the light
switch in the AUTO position.
If your vehicle detects oncoming or
preceding vehicles, High Beam Assist
will switch the high beam to low beam
automatically.
For more details, refer to “High Beam
Assist (HBA)” section in chapter 5.
AUTO HOLD indicator light
This indicator light illuminates:
•
[White] When you activate Auto Hold
by pressing the AUTO HOLD switch.
• [Green] When you stop the vehicle
completely by depressing the brake
pedal with Auto Hold activated.
• [Yellow] Whenever there is a
malfunction with the Auto Hold function.
If this occurs, have the vehicle
inspected by an authorized HYUNDAI
dealer.
For more details, refer to “Electronic
Parking Brake (EPB)” section in chapter 6.
LCD Display Messages
Shift to P
This message is displayed if you try to
turn off the vehicle without the gear in
the P (Park) position.
If this occurs, the Start/Stop button turns
to the ACC position.
Low key battery
This message is displayed if the battery
of the smart key is discharged while
changing the Start/Stop button to the OFF position.
Press START button while turning wheel (if equipped)
This message is displayed if the steering
wheel does not unlock normally when
the Start/Stop button is pressed.
You should press the Start/Stop button
while turning the steering wheel right
and left.
Press brake pedal to start vehicle
This message is displayed if the Start/
Stop button changes to the ACC position
twice by pressing the button repeatedly
without depressing the brake pedal.
You can start the vehicle by depressing
the brake pedal and then pressing the
Start/Stop button.

Instrument Cluster
4-20
Key not in vehicle
This message is displayed if the smart
key is not in the vehicle when you leave
the vehicle with the Start/Stop button in
the ON or Start position.
Always turn off the vehicle before leaving
your vehicle.
Key not detected
This message is displayed if the smart
key is not detected when you press the
Start/Stop button.
Press START button again
This message is displayed if you were
unable to start the vehicle when the
Start/Stop button was pressed.
If this occurs, attempt to start the vehicle
by pressing the Start/ Stop button again.
If the warning message appears each
time you press the Start/Stop button,
have the vehicle inspected by an
authorized HYUNDAI dealer.
Press START button with key
This message is displayed if you press
the Start/Stop button while the warning
message “Key not detected” is displayed.
At this time, the immobilizer indicator
light blinks.
Check BRAKE SWITCH fuse
This message is displayed if the brake
switch fuse is disconnected.
You need to replace the fuse with a new
one before starting the vehicle.
If that is not possible, you can start the
vehicle by pressing the Start/Stop button
for 10 seconds in the ACC position.
Shift to P or N to start vehicle
This message is displayed if you try to
start the vehicle in any other position
except P (Park) or N (Neutral).
Information
You can start the vehicle with the gear in
N (Neutral). But, for your safety, start the
vehicle with the gear shifted to P (Park).
Check smart key system
This message is displayed when there is a
problem with the smart key system. Have
the vehicle inspected by an authorized
HYUNDAI dealer.