Hyundai Tucson: Idle Stop and Go (ISG) System / Conditions that Restart the Engine
The engine is automatically restarted if:
- The brake vacuum pressure is low.
- The engine has stopped for about 5 minutes.
- The air conditioning is ON with the fan speed set to a certain high level.
- The front defroster is ON.
- The battery is weak.
- The cooling and heating performance of the climate control system is unsatisfactory.
- The vehicle is shifted to P (Park) or R (Reverse) when Auto Hold is activated.
- The door is opened or the seatbelt is unfastened when Auto Hold is activated.
- The EPB switch is pressed when Auto Hold is activated.
The Auto Stop (.png)
) indicator
blinks in
green for 5 seconds on the instrument
cluster when the engine is restarted.
WARNING
When the engine is in Idle Stop mode, the engine may restart without the driver taking any action. Before leaving the vehicle or working in the engine compartment, turn off the engine by moving the ignition switch to the OFF position, shifting to P (Park), applying the parking brake, and taking the key with you when you leave the vehicle.
ISG System Off
Type A
Type B
Press the ISG OFF button to turn off the
ISG system. The ISG OFF button indicator
illuminates. To use the system, press the
ISG OFF button again. ...
ISG Malfunction
ISG system may not operate if:
The Auto Stop ()
indicator
illuminates in yellow on the
instrument cluster.
The ISG OFF button illuminates.
Contact an authorized HYUNDAI dealer
for ...
Other information:
Hyundai Tucson (NX4) 2022-2026 Owner's Manual: Brake Fluid
Checking the Brake Fluid Level
Check the fluid level in the reservoir
periodically. The fluid level must be
between the MAX and the MIN marks on
the side of the reservoir.
Before removing the reservoir cap and
adding brake fluid, clean the area around
the reservoir cap thoroughly to pr ...
Hyundai Tucson (NX4) 2022-2026 Owner's Manual: ESC operation
ESC ON condition
When the ignition switch is in the ON
position, ESC and the ESC OFF indicator
lights illuminate for about three seconds.
After both lights go off, ESC is enabled.
When operating
When ESC is operating, the ESC
indicator light blinks:
When you apply your brakes under ...
