2021 HYUNDAI ELANTRA HYBRID charging

01
1-9
HEV (HYBRID ELECTRIC VEHICLE) SYSTEM
The HYUNDAI Hybrid Electric Vehicle (HEV) uses both the gasoline engine and the
electric motor for power. The electric motor is run by a 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, so at times the engine will come on even
at idle to act as a generator. Charging also occurs when decelerating or by regenerative
braking.
OCN7H070002
Startup/
Low speed cruise
Acceleration
High speed cruise Deceleration Stop
Electric motorElectric motor + EngineEngineChargingEngine OFF

3-46
For example, if a child restraint of the
type specified in the regulations is on the
seat, the occupant classification sensor
can detect it and cause the air bag to
turn OFF.
Front passenger seat adult occupants
who are properly seated and wearing the
seat belt properly, should not cause the
passenger air bag to be automatically
turned OFF. For small adults it may be
turned OFF, however, if the occupant
does not sit in the seat properly (for
example, by not sitting upright, by sitting
on the edge of the seat, or by otherwise
being out of position), this could cause
the sensor to turn the air bag OFF.
You will find the “PASSENGER AIR BAG
OFF” indicator on the overhead console.
This system detects the conditions 1-4
in the following table and activates or
deactivates the front passenger air bag
based on these conditions.
Always be sure that you and all vehicle
occupants are seated properly and
wearing the seat belt properly for the
most effective protection by the air bag
and the seat belt.
Never install a Child Restraint System in
the front passenger’s seat. If you should
install a CRS (Child Restraint System)
inevitably, use a forward-facing CRS with
3-point ALR safety seat belt and adjust
the front passenger’s seat as far to the
rear as possible. If the PASSENGER AIR
BAG “OFF” indicator is OFF after a CRS
(Child Restraint System) is equipped,
the front passenger’s airbag is operating
so you should install the CRS in the rear
seats of the vehicle immediately.The OCS may not function properly if the
passenger takes actions which can affect
the classification system. These include:
•
Failing to sit in an upright position.
• Leaning against the door or center
console.
• Sitting towards the sides of the front
of the seat.
• Putting their legs on the dashboard or
resting them on other locations which
reduce the passenger weight on the
front seat.
• Wearing the seat belt improperly.
• Reclining the seatback.
• Wearing a thick cloth like ski wear or
hip protection wear.
• Putting an additional thick cushion on
the seat.
• Putting electrical devices (e.g.
notebook, satellite radio) on the seat
with inverter charging.
Seats & Safety System

Instrument Cluster
4
Instrument Cluster ........................................................................\
.................4-4Instrument Cluster Control ........................................................................\
..............4-5
Adjusting instrument cluster illumination ............................................................4-5
Gauges and Meters ........................................................................\
..........................4-5
Speedometer ........................................................................\
.................................4-5
Power gauge ........................................................................\
.................................4-6
Hybrid battery SOC (State of Charge) gauge ......................................................4-6
Fuel gauge ........................................................................\
......................................4 -7
Outside temperature gauge ........................................................................\
..........4-8
Odometer ........................................................................\
.......................................4-8
Range ........................................................................\
..............................................4-9
Transmission shift indicator ........................................................................\
.............4-9
Dual clutch transmission shift indicator ..............................................................4-9
Warning and Indicator Lights ........................................................................\
........4-10
Ready indicator ........................................................................\
............................4-10
EV mode indicator ........................................................................\
.......................4-10
Service warning light ........................................................................\
...................4-10
Air Bag Warning Light ........................................................................\
..................4-10
Seat Belt Warning Light ........................................................................\
................4-11
Parking Brake & Brake Fluid Warning Light .........................................................4-11
Regenerative brake warning light ........................................................................\
4-11
Anti-lock Brake System (ABS) Warning Light ......................................................4-12
Electronic Brake Force Distribution (EBD) System Warning Light ....................4-12
Electronic Parking Brake (EPB) Warning Light ....................................................4-12
AUTO HOLD Indicator Light (if equipped) ..........................................................4-13
Electric Power Steering (EPS) Warning Light ......................................................4-13
Malfunction Indicator Lamp (MIL) .......................................................................4-13
Charging System Warning Light ........................................................................\
..4-14
Engine Oil Pressure Warning Light ......................................................................4-14
Low Fuel Level Warning Light ........................................................................\
......4-14
Master Warning Light ........................................................................\
...................4-15
Low Tire Pressure Warning Light ........................................................................\
.4-15
Electronic Stability Control (ESC) Indicator Light ..............................................4-15
Electronic Stability Control (ESC) OFF Indicator Light .......................................4-16
AUTO STOP indicator light ........................................................................\
...........4-16
Immobilizer Indicator Light ........................................................................\
..........4-16
Immobilizer Indicator Light (with smart key) .....................................................4-17
Turn Signal Indicator Light ........................................................................\
...........4-17
Exterior Light Warning Light ........................................................................\
........4-17
LED headlight warning light ........................................................................\
.........4-18
High Beam Indicator Light ........................................................................\
...........4-18
Light ON Indicator Light ........................................................................\
...............4-18
4.Instrument Cluster

High Beam Assist indicator light ........................................................................\
..4-18
Forward Collision-Avoidance Assist Warning Light ............................................4-18
Lane Keep Assist Indicator Light ........................................................................\
.. 4-19
Cruise Indicator Light
........................................................................\
...................4-19
SPORT Mode Indicator Light ........................................................................\
........4-19
SMART Mode Indicator Light ........................................................................\
.......4-19
Icy Road Warning Light ........................................................................\
................4-19
LCD Display Messages ........................................................................\
...................4-20
Shift to P or N to start engine (for smart key system) .......................................4-20
Shift to P (for smart key system and intelligent variable transmission) ...........4-20
Low key battery (for smart key system) ..............................................................4-20
Press brake pedal to start engine (for smart key system and intelligent
variable transmission)........................................................................\
.................. 4-20
Press clutch pedal to start engine (for smart key system and manual
transmission)
........................................................................\
................................4-20
Key not in vehicle (for smart key system) ...........................................................4-20
Key not detected (for smart key system) ............................................................4-20
Press START button again (for smart key system)
.............................................4-20
12V battery discharging due to additional electrical devices ...........................4-21
Press START button with key (for smart key system) .........................................4-21
Check BRAKE SWITCH fuse (for smart key system and automatic
transmission/intelligent variable transmission) ..................................................4-21
Door, Hood, Trunk Open Indicator ....................................................................... 4-21
Sunroof Open
........................................................................\
................................4-21
Low Pressure ........................................................................\
................................4-22
Lights Mode ........................................................................\
.................................. 4-22
Wiper
........................................................................\
............................................4-22
Heated Steering Wheel turned off ......................................................................4-22
Low washer fluid ........................................................................\
..........................4-22
Low fuel ........................................................................\
........................................4-23
Engine Overheated ........................................................................\
......................4-23
Check headlight (if equipped) ........................................................................\
....4-23
Check headlight (Low) ........................................................................\
................4-23
Check turn signal ........................................................................\
.........................4-23
Check brake light ........................................................................\
.........................4-23
Check daytime running light ........................................................................\
.......4-24
Check high mounted stop lamp ........................................................................\
.4-24
Check headlight LED ........................................................................\
...................4-24
Check Forward Collision-Avoidance Assist system ...........................................4-24
Check Lane Keeping Assist system ....................................................................4-24
Check Blind-Spot Collision Warning system ......................................................4-24
Check Driver Attention Warning system
............................................................4-25
4

Instrument Cluster
4-14
Charging System Warning
Light
When this warning light illuminates while
the engine is running, the battery is not
being charged. Immediately turn OFF
all electrical accessories. Try not to use
electrically operated controls, such as
the power windows. Keep the engine
running.
Have the vehicle inspected by an
authorized HYUNDAI dealer as soon as
possible.
Engine Oil Pressure Warning
Light
This warning light illuminates:
When the engine oil pressure is low.
If the engine oil pressure is low:
1. Drive carefully to the nearest safe
location and stop your vehicle.
2. Turn the engine off and check
the engine oil level (For more
information, refer to "Engine Oil" in
chapter 8). If the level is low, add oil
as required.
If the warning light remains on after
adding oil or if oil is not available, have
the vehicle inspected by an authorized
HYUNDAI dealer as soon as possible.
WARNING
When oil pressure is restored to an
optimal level, the oil pressure warning
light and the protection system that
limits engine power will turn off. Even
if the oil pressure returns to normal,
check the engine once again in a safe
place.
NOTICE
• If the engine is not turned OFF
immediately after the Engine
Oil Pressure Warning Light is
illuminated, severe damage could
occur.
• If the warning light stays on while the
engine is running, it indicates that
there may be serious engine damage
or malfunction. In this case:
1. Stop the vehicle as soon as it is
safe to do so.
2. Turn off the engine and check the
oil level. If the oil level is low, fill
the engine oil to the proper level.
3. Start the engine again. If the
warning light stays on after the
engine has started, turn the
engine off immediately. In this
case, have the vehicle inspected
by an authorized HYUNDAI dealer.
Low Fuel Level Warning Light
This warning light illuminates:
When the fuel tank is nearly empty. Add
fuel as soon as possible.
NOTICE
Driving with the Low Fuel Level warning
light on or with the fuel level below "E"
can cause the engine to misfire and
damage the catalytic converter.

04
4-21
12V battery discharging due to
additional electrical devices
This message is displayed if the 12V
battery voltage is weak due to any
non-factory electrical accessories (ex.
dashboard camera) while parking. Be
careful that the battery is not discharged.
If the message appears after removing
the non-factory electrical accessories,
we recommend that you have the vehicle
inspected by an authorized HYUNDAI
dealer.
Press START button with key
(for smart key system)
This warning message is displayed if you
press the Engine Start/Stop button while
the warning message "Key not detected"
is displayed.
At this time, the immobilizer indicator
light blinks.
Check BRAKE SWITCH fuse (for
smart key system and automatic
transmission/intelligent variable
transmission)
This warning message is displayed if the
brake switch fuse is disconnected.
You need to replace the fuse with a new
one before starting the engine.
If that is not possible, you can start the
engine by pressing the Engine Start/
Stop button for 10 seconds in the ACC
position.
Door, Hood, Trunk Open Indicator
OCN7040017
This warning is displayed if any door or
the hood or the liftgate is left open. The
warning will indicate which door is open
in the display.
CAUTION
Before driving the vehicle, you should
confirm that the door/hood/liftgate
is fully closed. Also, check there is no
door/hood/liftgate open warning light
or message displayed on the instrument
cluster.
Sunroof Open (if equipped)
OCN7040018
This warning is displayed if you turn off
the engine when the sunroof is open.
Close the sunroof securely before leaving
your vehicle.

Instrument Cluster
4-34
4. Sound
ItemsExplanation
Cluster
Voice
Guidance Volume To adjust the cluster voice guidance volume.
Welcome sound To activate or deactivate the welcome sound.
5. Convenience
Items
Explanation
Seat Easy
Access •
Off: The seat easy access function is deactivated.
• Normal/Extended: When you turn off the engine, the driver’s seat
will automatically move rearward short (Normal) or long (Extended)
for you to enter or exit the vehicle more comfortably.
For more details, refer to “Driver Position Memory System” in
chapter 5.
Rear
Occupant Alert •
To activate or deactivate the rear occupant alert system.
For more details, refer to the “Rear Occupant Alert (ROA)" in chapter
5.
Welcome Light •
On door unlock: The welcome light turns on automatically when the
doors are unlocked.
• On driver approach: The welcome light turns on automatically when
the vehicle is approached with the smart key.
For more details, refer to ‘’Welcome System’’ in chapter 5.
Wireless
Charging System To activate or deactivate the wireless charging system in the front seat.
For more details, refer to “Wireless cellular phone charging system”
in chapter 5.
Wiper/Lights Display To activate or deactivate the Wiper/ Light mode.
When activated, the LCD display shows the selected Wiper/Light mode
whenever you changed the mode.
Icy Road Warning To activate or deactivate the icy road warning function.

04
4-49
4. sound
ItemsExplanation
Cluster
Voice
Guidance Volume To adjust the cluster voice guidance volume.
Welcome sound To activate or deactivate the welcome sound.
5. Convenience
Items
Explanation
Seat Easy
Access •
Off: The seat easy access function is deactivated.
• Normal/Extended: When you turn off the engine, the driver’s seat
will automatically move rearward short (Normal) or long (Extended)
for you to enter or exit the vehicle more comfortably.
For more details, refer to “Driver Position Memory System” in
chapter 5.
Rear
Occupant Alert •
To activate or deactivate the rear occupant alert system.
For more details, refer to the “Rear Occupant Alert (ROA)" in chapter
5.
Welcome Light •
On door unlock: The welcome light turns on automatically when the
doors are unlocked.
• On driver approach: The welcome light turns on automatically when
the vehicle is approached with the smart key.
For more details, refer to ‘’Welcome System’’ in chapter 5.
Wireless
Charging System To activate or deactivate the wireless charging system in the front seat.
For more details, refer to “Wireless cellular phone charging system”
in chapter 5.
Traffic
Information To activate or deactivate the traffic information.
When activated, the traffic information will be displayed on the LCD
display. (for cluster type B)
Tunnel Entry Assist Automatically adjusts climate controls upon entering a tunnel.
Icy Road Warning To activate or deactivate the icy road warning function.