Idle Stop and Go helps reduce fuel consumption by automatically shutting down the engine, when the vehicle is at a standstill (i.e. red stop light, stop sign, and traffic jam).
ISG system is always active, when the engine is running.
Information
When the engine is automatically started by the ISG system, warning lights (e.g. ABS, ESC, ESC OFF, MDPS, and parking brake warning light) may illuminate for a few seconds if the battery voltage is low and does not indicate a malfunction with the ISG system.
Hyundai Tucson (NX4) 2022-2023 Owner's Manual: Smart key precautions. Replacing the battery
Smart key precautions
The smart key may not work if any of the
following occur:
The smart key is close to a radio
transmitter such as radio station or
airport that may interfere with normal
operation of the transmitter.
The smart key is near a mobile two
way radio system or a mo ...
Hyundai Tucson (NX4) 2022-2023 Owner's Manual: EPB malfunction
Electronic Parking Brake (EPB) warning
light illuminates if the ignition switch is
in the ON position and goes off in about
3 seconds if the system is operating
normally.
If the EPB warning light remains on,
comes on while driving, or does not
come on when the ignition switch is ON,
t ...