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) 2022-2025 Service Manual: Oil hydraulic Motor(Actuator)
- Description
The 4WD ECM controls the Pump Motor Pump (Actuator) to generating an
oil pressure. The pressure engages a multiple disk clutch to transfer
torque to the rear wheels. The torque to the rear wheels varies
according to the pressure on the clutch.
- Circuit Diagram
- ...
Hyundai Tucson (NX4) 2022-2025 Service Manual: CVVT (Continuously Variable Valve Timing) System
- Description
Continuous Variable Valve Timing (CVVT) system advances or retards the
valve timing of the intake and exhaust valve in accordance with the ECM
control signal which is calculated by the engine speed and load.By
controlling CVVT, the valve over-lap or under-lap occurs, which mak ...
