charging HYUNDAI NEXO 2023 User Guide

7
Maintenance
7
Maintenance
Fuel Cell Power Module Compartment ...............7-3
Maintenance Services ...........................................7-4Owner's Responsibility .....................................................7-4
Owner Maintenance Precautions..................................7-4
Owner Maintenance ..............................................7-5 Owner Maintenance Schedule .......................................7-6
Scheduled Maintenance Services........................7-7 Normal Maintenance Schedule ......................................7-8
Maintenance Under Severe Usage Conditions ........7-10
Explanation of Scheduled Maintenance Items ..7-12
Device Cooling Coolant .......................................7-13 Checking the Coolant Level ..........................................7-13
Changing Coolant ............................................................7-15
Stack Cooling Coolant .........................................7-16 Checking the Coolant Level ..........................................7-16
Changing Coolant ............................................................7-18
Brake Fluid ............................................................7-19 Checking the Brake Fluid Level ...................................7-19
Washer Fluid .........................................................7-20 Checking the Washer Fluid Level................................7-20
Air Cleaner ............................................................7-20 Filter Replacement ..........................................................7-20
Climate Control Air Filter ....................................7-22 Filter Inspection ...............................................................7-22 Wiper Blades.........................................................7-24
Blade Inspection ..............................................................7-24
Blade Replacement .........................................................7-24
12V Battery ...........................................................7-27 Battery Recharging ........................................................7-28
Reset Features.................................................................7-28
Tires and Wheels .................................................7-29 Tire Care ............................................................................7-29
Recommended Cold Tire Inflation Pressures ...........7-30
Check Tire Inflation Pressure ......................................7-31
Tire Rotation.....................................................................7-32
Wheel Alignment and Tire Balance ............................7-33
Tire Replacement ............................................................7-33
Wheel Replacement ........................................................7-34
Tire Traction .....................................................................7-34
Tire Maintenance ............................................................7-34
Tire Sidewall Labeling ....................................................7-34
Tire Terminology and Definitions................................7-38
All Season Tires ...............................................................7-42
Summer Tires ...................................................................7-42
Snow Tires ........................................................................7-42
Radial-Ply Tires ...............................................................7-42
Low Aspect Ratio Tires..................................................7-43
7

7-28
Maintenance
Battery Recharging
By RESET button
To charge the discharged 12V bat-
tery, attempt charging by pressing
12V BATT RESET button. For more
details, refer to “If the 12 volt battery
is discharged” in chapter 6.
By jump starting
After a jump start from a good bat-
tery, drive the vehicle for 20-30 min-
utes before it is shutoff. The vehicle
may not restart if you shut it off
before the battery had a chance to
adequately recharge. See "Jump
Starting" in chapter 6 For more
details on jump starting procedures.
Reset Features
Some items need to be reset after
the battery has been discharged or
the battery has been disconnected.
See chapter 3 or 4 for:
Power Windows
Trip Computer
Climate Control System
Clock
Audio System
Sunroof
Driver Position Memory System
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How to Start the Vehicle
1. Holding the smart key, sit in thedriver's seat.
2. Fasten the seat belt before start- ing the vehicle.
3. Make sure to engage the parking brake.
4. Turn OFF all electrical devices.
5. Make sure to depress and hold the brake pedal.
6. While depressing the brake pedal, shift to P (Park).
7. Depress and hold the brake pedal while pressing the POWER but- ton. 8. When the " " indicator is ON,
you can drive the vehicle.
When the " " indicator is OFF, you cannot drive the vehicle. Start
the vehicle again.
9. Depress and hold the brake pedal and shift to the desired position. Information
While the charging cable is connected,
the gear cannot be shift from P (Park)
to any other gear for safety reasons.
10. Release the parking brake and slowly release the brake pedal.
Check if the vehicle slowly
moves forward, then depress the
accelerator pedal.
i
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Warning and indicator lights
OFE048100C1. Power gauge
2. Speedometer
3. Fuel cell stack temperature gauge
4. Fuel gauge
5. Odometer/LCD display/Trip computer
6. Warning and indicator lights
Air bag warningCharging system warningElectronic Stability Control (ESC) OFF indicator Forward Collision-
Avoidance Assist (FCA)
system warning
Seat belt warningLow fuel level warning Immobilizer Indicator
Parking brake &
brake fluid warningLow tire pressure warningTurn Signal IndicatorEPBElectronic Parking Brake
(EPB) warning
Regenerative brake
warningService warning High Beam IndicatorAUTO
HOLDAUTO HOLD Indicator
Anti-lock brake system
(ABS) warningPower down warning Light ON IndicatorMaster Warning
Electronic Brake force
Distribution (EBD) warning
Hydrogen gas leak
warning (Red) Ready indicatorLED Headlamp warning
Hydrogen leak sensor
warning (Yellow)Lane Keeping Assist (LKA) system indicator
Electric Power Steering
(EPS) warningElectronic Stability Control (ESC) indicator
Yellow
❈ For more details, refer to the ‘Instrument cluster’ in Chapter 3.

H25
When the high voltage battery is weak
When the high voltage battery is
weak due to driving on a hill for a
long time or accelerating and decel-
erating the vehicle repeatedly, the
acceleration performance may be
lower than usual. In this case, be
cautious not to overtake other vehi-
cles.
If the 12 volt battery is dis-
charged
This vehicle does not have a regular
12V battery that needs periodic
replacement. It is lithium ion polymer
type integrated into the high voltage
battery. The vehicle has a 12V bat-
tery protection system that cuts 12V
battery from vehicle draw to prevent
full discharge.
If the 12V battery is discharged, you
should try charging it by pressing the
"12V BATT RESET" button.
Using the 12V battery resetswitch
1. Press the 12V Battery Reset switch to reconnect the 12V bat-
tery.
2. Start the vehicle within 15 sec- onds of pressing the 12V Battery
Reset switch.
3. After starting vehicle ( indica- tor on), move the vehicle outside
and keep the vehicle ready ( )
mode more than 30 minutes safe-
ly to charge the 12V battery.
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CategoryQuestionsAnswers
Vehicle
Management (12 items)
11. Can I wash my FCEV with pressurized water? What if water flows into the fuel
cell power module compartment?
Every component housed in the fuel cell power module compart-
ment is designed to be waterproof like those found in standard vehi-
cles. Therefore, a short circuit of the FCEV cannot happen while
washing the car. However, your FCEV works by utilizing high-voltage
electric power, so it is recommended that you avoid high-pressure car
washes. If the insulation resistance of the FCEV deteriorates due to
car wash, a High voltage warning light may turn on the cluster.

12. When washing the fuel cell power mod-ule compartment, is there any potential
risk of electric shock resulting from a
high-voltage short circuit?The FCEV is designed to be a waterproof structure, but please
avoid washing the inside of the compartment if possible. Because
there are many high voltage parts in the power module compart-ment.
13. Can I wash the bottom of the vehicle? Ifyes, what should I be aware of?The FCEV is designed to be a waterproof structure, but please
avoid washing the botttom of the vehicle if possible. Because there
are high voltage cables in the under cover.
14. Can driving with a tire chain affect thedrive motor?Driving with a tire chain causes no direct damage to the drive motor.
15. How should I jump start the vehicle?
Try charging it by pressing the “12V BATT RESET” button first. Refer
to the "If the 12 volt battery is discharged" in this guide book. It it
doesn't work, refer to the "Jump starting" in the Owner's manualchapter 6.

I-2
12V Battery .....................................................................7-27
Battery Recharging .....................................................7-28
Reset Features ............................................................7-28
AC Inverter ...................................................................3-167
Accessing Your Vehicle ....................................................3-3 Immobilizer System ...................................................3-10
Smart Key.....................................................................3-3
Active Hood Lift System ................................................2-70 System Activation ......................................................2-70
System Limitation ......................................................2-71
System Malfunction ...................................................2-72
Air Bag - Advanced Supplemental Restraint System.....2-47 Additional Safety Precautions ....................................2-69
Air Bag Warning Labels.............................................2-69
Curtain air bags ..........................................................2-51
Driver's front air bag ..................................................2-49
How Does the Air Bag System Operate? ...................2-52
Occupant Classification System (OCS) .....................2-58
Passenger's front air bag.............................................2-49
Side air bags ...............................................................2-50
SRS Care ....................................................................2-68
What to Expect After an Air Bag Inflates ..................2-57
Where Are the Air Bags? ...........................................2-49
Why Didn't My Air Bag Go Off in a Collision?........2-63 Air Bag Warning Labels .................................................2-69
Air Cleaner......................................................................7-20
Filter Replacement .....................................................7-20
Air Conditioning System ..................................................8-5
Anti-lock Brake System (ABS) ......................................5-29
Appearance Care .............................................................7-62 Exterior Care ..............................................................7-62
Interior Care ...............................................................7-67
Auto Hold .......................................................................5-25
Automatic Climate Control System..............................3-147 Automatic Temperature Control Mode ....................3-148
Manual Temperature Control Mode .........................3-148
System Maintenance ................................................3-156
System Operation .....................................................3-154
Before Driving ..................................................................5-4 Before Entering the Vehicle .........................................5-4
Before Starting .............................................................5-4
Blind-Spot Collision Warning/ Blind-Spot Collision-Avoidance Assist .......................5-53
Detecting Sensor (Front View Camera and Rear Corner Radar) .................................................5-59
Limitations of the System ..........................................5-62
System Description ....................................................5-53
System Setting and Activation ...................................5-54
Warning and System Control .....................................5-57
Index
A
B

I-6
Infotainment system..........................................................4-2
Antenna ........................................................................4-2
Audio/Video/Navigation system (AVN) ......................4-4
Blue Link ®
center .........................................................4-4
Bluetooth ®
Wireless Technology..................................4-4
Steering wheel audio controls ......................................4-3
USB and iPod ®
port .....................................................4-2
Inside Rearview Mirror...................................................3-23
Instrument Cluster...........................................................3-58 Gauges and Meters .....................................................3-59
Instrument Cluster Control .........................................3-59
LCD Display Messages ..............................................3-76
Warning and Indicator Lights.....................................3-65
Instrument Cluster Control .............................................3-59
Instrument Panel Overview ..............................................1-5
Interior Features ............................................................3-164 AC Inverter...............................................................3-167
Cargo Security Screen ..............................................3-174
Clock ........................................................................3-171
Coat Hook ................................................................3-172
Cup Holder ...............................................................3-164
Floor Mat Anchor(s) .................................................3-172
Luggage Net Holder .................................................3-173
Power Outlet.............................................................3-166
Sunvisor ....................................................................3-165
USB Charger ............................................................3-169
Wireless Cellular Phone Charging System ..............3-169 Interior Lights .................................................................3-96
Front Door Lamp........................................................3-97
Front Map Lamp ........................................................3-96
Front Room Lamp ......................................................3-97
Glove box lamp ..........................................................3-98
Interior lamp AUTO cut .............................................3-96
Luggage compartment lamp .......................................3-97
Puddle lamp ................................................................3-98
Rear Room Lamp .......................................................3-97
Vanity mirror lamp .....................................................3-98
Welcome light.............................................................3-99
Interior Overview..............................................................1-4
Introduction of FCEV .......................................................H2
Lane Following Assist (LFA) System ............................5-87
LFA Operation ............................................................5-88
Limitations of the System ..........................................5-92
Warning Message .......................................................5-90
Lane Keeping Assist (LKA) System ..............................5-79
Limitations of the System ..........................................5-85
LKA System Function Change ..................................5-86
LKA System Operation ..............................................5-81
Warning Light and Message.......................................5-83
LCD Display ...................................................................3-81
LCD Display Control......................................................3-81
LCD Display Messages ..................................................3-76
Index
L

I-11
Wiper Blades ...................................................................7-24
Blade Inspection .........................................................7-24
Blade Replacement .....................................................7-24
Wipers and Washers ......................................................3-101 Front Windshield Washers........................................3-103
Front Windshield Wipers..........................................3-101
Rear Window Wiper and Washer .............................3-104
Wireless Cellular Phone Charging System ...................3-169
I
Index