2023 HYUNDAI ELANTRA HYBRID AUX

Engine Compartment ........................................................................\
............ 9-3
Maintenance Services ........................................................................\
...........9-4
Owner’s Responsibility ........................................................................\
.................... 9-4
Owner Maintenance Precautions ........................................................................\
.... 9-4
Owner Maintenance ........................................................................\
.............. 9-5Owner Maintenance Schedule ........................................................................\
........ 9-5
Scheduled Maintenance Services ................................................................ 9-7Normal Maintenance Schedule ........................................................................\
...... 9-8
Maintenance Under Severe Usage Conditions .................................................... 9-12
Maintenance Under Severe Usage Conditions ....................................................9-13
Explanation of Scheduled Maintenance Items .......................................... 9-14HSG (Hybrid Starter & Generator) Belt ...............................................................\
..9-14
Dual Clutch Transmission Fluid ........................................................................\
..... 9-15
Engine Oil ........................................................................\
............................. 9-16Checking the Engine Oil Level ........................................................................\
........9-16
Checking the Engine Oil and Filter ........................................................................\
9-17
Engine Coolant/Inverter Coolant ................................................................ 9-19Checking the Coolant Level......................................................................\
..............9-19
Changing Engine Coolant ........................................................................\
.............. 9-22
Hybrid Starter & Generator (HSG) Belt ....................................................... 9-23Checking the Hybrid Starter & Generator (HSG) Belt .......................................... 9-23
Brake/Clutch Fluid ........................................................................\
............... 9-24Checking the Brake/Clutch Fluid Level ................................................................ 9-24
Washer Fluid ........................................................................\
......................... 9-25Checking the Washer Fluid Level ........................................................................\
.. 9-25
Air Cleaner ........................................................................\
............................ 9-25Filter Replacement ........................................................................\
......................... 9-25
Cabin Air Filter ........................................................................\
...................... 9-27Filter Inspection........................................................................\
.............................. 9-27
Filter Replacement ........................................................................\
......................... 9-27
Wiper Blades ........................................................................\
........................ 9-28Blade Inspection ........................................................................\
............................ 9-28
Blade Replacement ........................................................................\
........................ 9-28
Battery ....................................................................\
......................................9-3012V auxiliary battery ........................................................................\
...................... 9-30
9. Maintenance
9

Maintenance9-30
12V auxiliary battery
The 12V auxiliary battery of the vehicle
is integrated within the high-voltage
battery. The high-voltage battery is
located under the seat cushion.
For battery related servicing, contact an
authorized HYUNDAI dealer.
12V auxiliary battery connector
OCN7H092032Disconnect the 12V auxiliary battery
connector located inside the engine
room compartment to shut down the
power of the 12V auxiliary battery.
Connect the 12V auxiliary battery
connector again after the battery related
maintenance is finished.
CAUTION

[ The efficiency of the battery
decreases during low temperature.
If the vehicle is not used for the
extended period of time, park the
vehicle indoors if possible.

[ Always keep the battery charged to
the full capacity. The battery case
may damage due to freezing if the
battery capacity is low.

[ Do not install unauthorized electrical
devices (for example, lamps,
dashcam, etc.) to a vehicle. It may
discharge the battery.
BATTERY

Maintenance9-52
Engine compartment fuse panel
Type Fuse Name Fuse Rating Circuit Protected
FUSE B
ATTERY C/
FAN 1 15A Battery C/Fan Relay
IEB1 40A IDB Unit, Multipurpose Check Connector
CLUTCH
ACTUATOR 30A Clutch Actuator
POWER
OUTLET 1 40A Power Outlet Relay
EWP 2 10A Auxiliary Electric Water Pump
EWP 1 10A Electric Water Pump
POWER
OUTLET 2 20A Front Power Outlet
DCT 1 40A TCM
DCT 2 40A TCM
REAR
HEATED 40A Rear Heated Relay
B+4 40AICU Junction Block (Power Window Relay,
Fuse - AIR BAG 2, IBU 1, BRAKE SWITCH,
DOOR LOCK, MODULE 1, SUNROOF, IAU,
BMS)
HEV ECU 1 10A HPCU
IG3 20A IG3 Relay
TCU 1 10A TCM
FUEL PUMP 20A Fuel Pump Relay
HEV ECU 2 10A HPCU, BMS Control Module
Sub Block FUSE BATTERY C/
FAN 2 10A Battery C/Fan Relay

09
9-53
Engine compartment fuse panel
Fuse NameFuse Rating Circuit Protected
WIPER 25A
Wiper Relay
HORN 15A Horn Relay
IGN COIL 20A Ignition Coil #1 ~ #4
ECU2 15A ECM
SENSOR3 10A E/R Junction Block (Fuel Pump Relay)
SENSOR2 10ACamshaft Position Sensor #1/#2 (Intake/Exhaust), Mass
Air Flow Sensor, ELCM, Oil Control Valve #1/#2 (Intake/
Exhaust),
Purge Control Solenoid Valve
ECU3 10A ECM, HPCU, Clutch Actuator
SENSOR1 15A Oxygen Sensor (Up/Down)
IEB 4 10A IDB Unit, Multipurpose Check Connector
EWP 3 10A Auxiliary Electric Water Pump
ECU1 20A ECM
TCU2 15A Transaxle Range Switch, TCM