2023 Hyundai Nexo-Fule-Cell Owner’s Manual

Presenting the 2023 Hyundai Nexo Fuel Cell, a green marvel that reinvents the direction of sustainable transportation. The Nexo is a fully green vehicle since it uses cutting-edge hydrogen fuel cell technology to produce only water vapor and no hazardous pollutants. The Nexo embodies sophistication and creativity with its cutting-edge design and aerodynamic form. This fuel-cell SUV reduces range anxiety and offers a smooth and effective driving experience while providing a fantastic driving range and quick recharge times. Inside, features like an advanced driver assistance system and a high-end multimedia system combine luxury with cutting-edge technology. With the 2023 Hyundai Nexo Fuel Cell, embrace the next wave of automotive innovation, where sophistication and sustainability come together flawlessly.

INSTRUMENT CLUSTER

1. Power gauge
2. Speedometer
3. Fuel cell stack temperature gauge
4. Fuel gauge
5. Warning and indicator lights
6. Odometer/LCD display/Trip computer

The actual cluster in the vehicle may differ from the illustration.

Instrument Cluster Control
Adjusting instrument cluster illumination
When the vehicle’s position lights or headlights are on, press the illumination control button to adjust the brightness of the instrument panel illumination. When pressing the illumination control button, the interior switch illumination intensity is also adjusted.

WARNING: Never adjust the instrument cluster while driving. Doing so could lead to driver distraction which may cause an accident and lead to vehicle damage, serious injury, or death.

• The brightness of the instrument panel illumination is displayed.
• If the brightness reaches the maximum or minimum level, a chime will sound.

Gauges and Meters Speedometer
The speedometer indicates the speed of the vehicle and is calibrated in miles per hour (MPH) and/or kilometers per hour (km/h).

Power gauge
The power gauge shows the energy consumption rate of the traction motor.

• CHARGE: It shows the charging status of the battery when it is being charged by the regenerative brakes (decelerating or driving on a downhill road). The more electric energy is charged, the lower the gauge level.
• ECO: It shows the energy consumption rate during normal driving conditions.
• POWER: It shows the energy consumption rate of the vehicle when driving uphill or accelerating. The more electric energy is used, the higher the gauge level.

Fuel cell stack temperature gauge
This gauge shows the temperature of the fuel cell stack coolant when the POWER button is ON.
Do not continue driving with an over-heated fuel cell stack. If your vehicle overheats, have the vehicle inspected by an authorized HYUNDAI dealer.
NOTICE: Fuel Cell Stack Overheats. If the gauge pointer moves beyond the normal range area toward the “H” position, it indicates overheating that may damage the fuel cell stack.

WARNING: Radiator Cap. Never remove the radiator cap when the fuel cell power module is hot. Otherwise, the fuel cell stack coolant may be under pressure and cause severe burns. Wait until the fuel cell power module is cool before adding coolant to the reservoir.

Hydrogen fuel gauge
This gauge indicates the approximate amount of fuel remaining in the fuel tank (The fuel tank capacity is given in Chapter 8). The fuel gauge is supplemented by a low fuel warning light which will illuminate when the fuel tank is nearly empty.

WARNING: Running Out of Fuel. Running out of fuel can expose vehicle occupants to danger. You must stop and obtain additional fuel as soon as possible after the warning light comes on or when the gauge indicator comes close to the ”E” (Empty) level.

Information – Hydrogen Fueling Station
According to the hydrogen fueling station condition, the hydrogen fuel may not be filled fully.

Outside temperature gauge
This gauge indicates the current outside air temperature by 1 degree F (1 degree C).

• Temperature range : -40°F ~ 140°F (-40°C ~ 60°C)

Note that the temperature indicated on the LCD display may not change as quickly as the outside temperature (there may be a slight delay before the temperature changes.)

The temperature unit (from °C to °F or from °F to °C) can be changed by:

• Press the AUTO button while pressing the OFF button on the climate control unit for 3 seconds
• Go to General settings mode → Unit → Temperature in the Infotainment system display.

Both the temperature unit on the cluster LCD display and the climate control screen will change.

Odometer
The odometer indicates the total distance that the vehicle has been driven and should be used to determine when periodic maintenance should be performed.

Range

• The range is the estimated distance the vehicle can be driven with the remaining fuel.
• If the estimated distance is below 1 mi. (1 km), the trip computer will display “—” as a range.
• If the hydrogen supply line is empty, the gauge may indicate that the hydrogen is not in the hydrogen tank.

Information 

• If the vehicle is not on level ground or the battery power has been interrupted, the range function may not operate correctly.
• The range may differ from the actual driving distance as it is only an estimate of the available driving range for the vehicle and driving conditions.
• The range may vary significantly based on driving conditions, driving habits, and the condition of the vehicle.

Gear shift indicator 
This indicator displays which gear is selected.

Regenerative braking rate indicator
While using the regenerative brakes, you may select the regenerative braking rate from 0 to 3 by pulling the paddle shifter.

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 40°F (4°C), the Icy Road Warning Light and Outside Temperature Gauge blink, and then illuminate. Also, the warning chime is sound.

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.

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 POWER 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 fuel cell 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.

Power Down Warning Light
This warning light illuminates :

• When the vehicle power should be limited due to a malfunction with the fuel cell stack.
• If the warning light continuously remains on when the vehicle is in a “READY” state or comes on during driving, this indicates that there may be a malfunction with the fuel cell stack. If this occurs, we recommend that you have the vehicle inspected by an authorized HYUNDAI dealer.

NOTICE: If the warning light turns on again when restarting the vehicle after parking your vehicle on an incline.

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 40°F (4°C), the Icy Road Warning Light and Outside Temperature Gauge blink and then illuminate. Also, the warning chime sounds 1 time. The Icy Road Warning function can be activated or deactivated from the Vehicle Settings mode in the Infotainment system screen.

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.

Hydrogen Gas Leak Warning Light
This warning light illuminates:

• [Red] When the hydrogen leakage is detected in the vehicle.
• [Yellow] When there is a malfunction with the hydrogen leakage detection sensor.

If the warning light continuously remains on when the vehicle is in a “READY” state or comes on during driving, this indicates that there may be hydrogen leakage or a malfunction with the hydrogen leakage detection sensor. If this occurs, stop the vehicle and have the hydrogen system inspected by an authorized HYUNDAI dealer.

Low Fuel Level Warning Light

• This warning light illuminates: When the fuel tank is nearly empty.
• If the fuel tank is nearly empty: Add fuel as soon as possible.

FAQ’s