Carbon monoxide (CO) gas is toxic. Breathing CO may cause unconsciousness and death.
Engine exhaust contains carbon monoxide that cannot be seen or smelled.
Do not inhale engine exhaust.
If at any time you smell engine exhaust inside the vehicle, open the windows immediately. Exposure to CO may cause unconsciousness and death by asphyxiation.
Make sure the exhaust system does not leak.
The exhaust system should be checked whenever the vehicle is raised to change the oil or for any other purposes. If you hear a change in the sound of the exhaust or drive over something that strikes the underneath side of the vehicle, have the exhaust system checked as soon as possible by an authorized HYUNDAI dealer.
Do not run the engine in an enclosed area.
Letting the engine idle in your garage, even with the garage door open, is a hazardous practice. Run the engine only long enough to start the engine and to move the vehicle out of the garage.
Avoid idling the engine for an extended period of time with people inside the vehicle.
If it is necessary to idle the engine for a long time with people inside the vehicle, be sure to do so only in an open area with the air intake set at “Fresh” and fan control set to high so fresh air is drawn into the interior.
Keep the air intakes clear.
To ensure proper operation of the ventilation system, keep the ventilation air intakes located in front of the windshield clear of snow, ice, leaves, or other obstructions.
If you must drive with the liftgate open:
Close all windows.
Open instrument panel air vents.
Set the air intake control at “Fresh”, the air flow control at “Floor” or “Face”, and the fan control set to high.
Hyundai Tucson (NX4) 2022-2025 Owner's Manual: Remote key precautions
The remote key may not work if any of
the following occur:
The key is in the ignition switch.
The maximum operating distance limit
is exceeded (about 32 feet (10 m)).
The remote key battery is weak.
Other vehicles or objects may block
the signals.
The weather is extremely cold.
...
Hyundai Tucson (NX4) 2022-2025 Owner's Manual: How does the Airbag System
Operate?
The SRSCM (Supplemental Restraint
System Control Module) continually
monitors all SRS components while the
ignition switch is ON to determine if a
crash impact is severe enough to require
airbag deployment or pretensioner seat
belt deployment.
During a moderate to severe frontal
colli ...