2023 HYUNDAI IONIQ 5 start stop button

Seats & Safety System
3-64
OHI038118
Proper seated position for OCS
If the “PASSENGER AIR BAG OFF”
indicator is on when an adult is seated
in the front passenger seat, place the
Engine Start/Stop button in the OFF
position and ask the passenger to sit
properly (sitting upright with the seat
back in an upright position, centered
on the seat cushion with their seat belt
on, legs comfortably extended and their
feet on the floor). Restart the engine and
have the person remain in that position.
This will allow the system to detect the
person and to enable the passenger air
bag. If the “PASSENGER AIR BAG OFF”
indicator is still on, ask the passenger to
move to the rear seat.
WARNING
NEVER allow an adult passenger to ride
in the front passenger seat when the
“PASSENGER AIR BAG OFF” indicator
is illuminated. During a collision, the
air bag will not inflate if the indicator
is illuminated. Have your passenger
reposition themselves in the seat. If the
“PASSENGER AIR BAG OFF” indicator
remains illuminated after the passenger
repositions themselves properly
and the vehicle is restarted, have
the passenger move to the rear seat
because the air bag will not inflate.
NOTICE
The “PASSENGER AIR BAG OFF”
indicator generally illuminates for
approximately 4 seconds after the
Engine Start/Stop button is in the ON
or START position. But, if the Engine
START/STOP button is pressed to the
ON or START position within 3 minutes
after the engine is turned OFF, the
indicator does not illuminate. If the
front passenger seat is occupied,
the OCS will then classify the front
passenger after several more seconds.

03
3-65
Do not install a Child Restraint
System on the Front Passenger’s
Seat
OHI039193N
Even though your vehicle is equipped
with the OCS, never install a child
restraint in the front passenger’s seat.
An inflating air bag can forcefully strike a
child or child restraint resulting in serious
or fatal injury.
WARNING
NEVER use a rearward facing Child
Restraint on a seat protected by an
ACTIVE AIRBAG in front of it, DEATH
or SERIOUS INJURY to the CHILD can
occur.
Why didn’t my air bag go off in a
collision?
There are certain types of accidents in
which the air bag would not be expected
to provide additional protection. These
include rear impacts, second or third
collisions in multiple impact accidents,
as well as low speed impacts. Damage to
the vehicle indicates a collision energy
absorption, and is not an indicator of
whether or not an air bag should have
inflated. Air bag collision sensors
WARNING
To reduce the risk of an air bag
deploying unexpectedly and causing
serious injury or death: • Do not hit or allow any objects to
impact the locations where air bags
or sensors are installed.
• Do not perform maintenance on or
around the air bag sensors. If the
location or angle of the sensors is
altered, the air bags may deploy
when they should not or may not
deploy when they should.
• Installing bumper guards with non-
genuine Hyundai or non-equivalent
parts may adversely affect the
collision and airbag deployment
performance.
To ensure correct function of the
airbag system, have the bumper
replaced with genuine Hyundai part
or the equivalent (of the genuine
part) specified for your vehicle.
• Press the Start/Stop button to the
OFF or ACC position and wait for 3
minutes when the vehicle is being
towed to prevent inadvertent air bag
deployment.
• Have all air bag repairs conducted by
an authorized HYUNDAI dealer.

Seats & Safety System
3-70
SRS Care
The SRS is virtually maintenance-free
and there are no parts you can safely
service by yourself. If the SRS air bag
warning light does not illuminate
when the Start/Stop button is in the
ON position, or continuously remains
on, have the system be immediately
inspected by an authorized HYUNDAI
dealer.
We recommend any work on the SRS
system, such as removing, installing,
repairing, or any work on the steering
wheel, the front passenger’s panel, front
seats and roof rails be performed by an
authorized HYUNDAI dealer. Improper
handling of the SRS system may result in
serious personal injury. WARNING
To reduce the risk of serious injury or
death take the following precautions: • Do not attempt to modify or
disconnect the SRS components or
wiring, including the addition of any
kind of badges to the pad covers or
modifications to the body structure.
• Do not place objects over or near
the air bag modules on the steering
wheel, instrument panel, and the
front passenger’s panel above the
glove box.
• Clean the air bag pad covers with
a soft cloth moistened with plain
water. Solvents or cleaners could
adversely affect the air bag covers
and proper deployment of the
system.
• Have the inflated air bags be
replaced by an authorized HYUNDAI
dealer.
• If components of the air bag system
must be discarded, or if the vehicle
must be scrapped, certain safety
precautions must be observed.
Consult an authorized HYUNDAI
dealer for the necessary information.
Failure to follow these precautions
could increase the risk of personal
injury.

03
3-71
Additional Safety Precautions
Passengers should not move out of
or change seats while the vehicle is
moving. A passenger who is not wearing
a seat belt during a crash or emergency
stop can be thrown against the inside of
the vehicle, against other occupants, or
be ejected from the vehicle.
Do not use any accessories on seat belts. Devices claiming to improve
occupant comfort or reposition the seat
belt can reduce the protection provided
by the seat belt and increase the chance
of serious injury in a crash.
Do not modify the front seats.
Modification of the front seats could
interfere with the operation of the
supplemental restraint system sensing
components or side air bags.
Do not place items under the front
seats. Placing items under the front seats
could interfere with the operation of the
supplemental restraint system sensing
components and wiring harnesses.
Do not cause impact to the doors.
Impact to the doors when the Start/Stop
button is in the ON or START position
may cause the air bags to inflate.
Modifications to accommodate disabilities. If you require modification
to your vehicle to accommodate
a disability, contact the HYUNDAI
Customer Connect Center at 800-633-5151.
Adding equipment to or modifying
your air bag equipped vehicle
If you modify your vehicle by changing
your vehicle’s frame, bumper system,
front end or side sheet metal or ride
height, this may affect the operation of
your vehicle’s air bag system.
Air Bag Warning Labels
ONE1031072
ONE1031072R
Air bag warning labels, required by the
U.S. National Highway Traffic Safety
Administration (NHTSA), are attached
to alert the driver and passengers of
potential risks of the air bag system. Be
sure to read all of the information about
the air bags that are installed on your
vehicle in this Owners Manual.

4
LCD Display Messages ............................................................................................... 4-19
Shift to P ................................................................................................................... 4-19
Low key battery ....................................................................................................... 4-19
Press START button while turning wheel ...............................................................4-19
Press brake pedal to start vehicle .......................................................................... 4-19
Key not in vehicle .................................................................................................... 4-20
Key not detected ...................................................................................................... 4-20
Press START button again ...................................................................................... 4-20
Press START button with key .................................................................................. 4-20
Check BRAKE SWITCH fuse ................................................................................... 4-20
Shift to P or N to start vehicle ................................................................................. 4-20
Check smart key system .......................................................................................... 4-20
Door, Hood, Liftgate open indicator ........................................................................ 4-21
Low tire pressure ...................................................................................................... 4-21
Lights ......................................................................................................................... 4-21
Wiper ........................................................................................................................ 4-22
Low washer fluid ...................................................................................................... 4-22
Check headlight ....................................................................................................... 4-22
Check turn signal ..................................................................................................... 4-22
Check headlamp LED .............................................................................................. 4-22
Shift to P to charge/Shift to P to start charging ....................................................4-23
Remaining time ........................................................................................................ 4-23
Unplug vehicle to start ............................................................................................ 4-23
Charging door open ................................................................................................. 4-23
Charging stopped. Check the AC/DC charger .......................................................4-24
Charging stopped. Check the cable connection ...................................................4-24
Check regenerative brakes...................................................................................... 4-25
Low EV battery ......................................................................................................... 4-25
Charge immediately. Power limited ....................................................................... 4-25
12V battery discharging due to additional electrical devices ..............................4-26
Power limited due to low EV battery temperature. Charge battery .....................4-26
EV battery overheated! Stop vehicle ...................................................................... 4-27
Power limited ........................................................................................................... 4-27
Stop vehicle and check power supply .................................................................... 4-28
Check active air flap system ................................................................................... 4-28
Check virtual engine sound system........................................................................4-28
Check electric vehicle system ................................................................................ 4-28

04
4-9
Reduction Gear Shift Indicator
ONE1041015
The indicator displays which gear is
selected.
Regenerative braking level indicator
ONE1061036
The regenerative brake indicates the
level of the regenerative braking that
you set. And it also indicates Smart
regenerative system’s operation status.
For more details, refer to "Regenerative
Braking System" in chapter 6.
Warning and Indicator Lights
Information
Make sure that all warning lights are OFF
after starting the vehicle. If any light is still ON, this indicates a situation that needs attention.
Ready indicator
This indicator illuminates:
When the vehicle is ready to be driven. - ON : Normal driving is possible.
- OFF : Normal driving is not possible, or a problem has occurred.
- Blinking : Emergency driving.
When the ready indicator goes OFF
or blinks, there is a problem with the
system. In this case, have your vehicle
inspected by an authorized HYUNDAI
dealer.
Service warning light
This warning light illuminates:
• When the START/STOP button is in the ON position.
- It illuminates for approximately 3 seconds and then goes off.
• When there is a problem with related
parts of the electric vehicle control
system, such as sensors, etc.
When the warning light illuminates while
driving, or does not go OFF after starting
the vehicle, have your vehicle inspected
by an authorized HYUNDAI dealer.

Instrument Cluster
4-10
Power down indicator light
This indicator light illuminates:
• When the START/STOP button is in the ON position.
- It illuminates for approximately 3 seconds and then goes off.
• When the power is limited for the
safety of the high-powered parts of an
electric vehicle. The power is limited
for the following reasons.(Unless both
Service Warning Light and Power
Down Indicator Light illuminate at the
same time, it is not a failure.)
- The high voltage battery level is too low or voltage is decreasing
- The temperature of the high voltage battery is too high or too low
- The temperature of the motor is high
NOTICE
• Do not accelerate or start the vehicle
suddenly when the power down
indicator light is ON.
• When the power is limited for the
safety of the high-powered parts of
an electric vehicle, the power down
indicator light illuminates. Your
vehicle may not drive uphill or skid
on a slope with the indicator light ON. Charging indicator light
This warning light illuminates:
•
When charging the high voltage
battery.
High voltage battery level
warning light
This warning light illuminates:
• When the high voltage battery level
is low.
• When the warning light turns ON,
charge the battery immediately.
Seat belt warning light
This warning light informs the driver that
the seat belt is not fastened.
For more details, refer to “Seat Belts”
section in chapter 3.

04
4-11
Air bag warning light
This warning light illuminates:
•
When you set the Start/Stop button to the ON position.
- The air bag warning light illuminates for about 6 seconds and then turns
off when all checks have been
performed.
• The air bag warning light will remain
illuminated if there is a malfunction
with the Safety Restraint System (SRS)
air bag operation.
If this occurs, have the vehicle
inspected by an authorized HYUNDAI
dealer.
Regenerative brake warning
light
This warning light illuminates:
When the regenerative brake does not
operate and the brake does not perform
well. This causes the Brake Warning
light (red) and Regenerative Brake
Warning Light (yellow) to illuminate
simultaneously.
In this case, drive safely and have your
vehicle inspected by an authorized
HYUNDAI dealer.
The operation of the brake pedal may
be more difficult than normal and the
braking distance can increase. Parking brake & brake fluid
warning light
This warning light illuminates:
•
When you set the START/STOP button in the ON position.
- It illuminates for approximately 3 seconds.
- It remains on if the parking brake is applied.
• When the parking brake is applied.
• When the brake fluid level in the
reservoir is low.
- If the warning light illuminates with the parking brake released, it
indicates the brake fluid level in the
reservoir is low.
• When the regenerative brake does not
operate.
If the brake fluid level in the reservoir is low:
1. Drive carefully to the nearest safe
location and stop your vehicle.
2. With the motor stopped, check the brake fluid level immediately and add
fluid as required (For more details,
refer to “Brake Fluid” section in
chapter 9) . After adding brake fluid,
check all brake components for fluid
leaks. If a brake fluid leak is found, or
if the warning light remains on, or if
the brakes do not operate properly, do
not drive the vehicle. Have the vehicle
inspected by an authorized HYUNDAI
dealer.