Hyundai Tucson: Driving Your Vehicle / Idle Stop and Go (ISG) System
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.
- ISG System Operation
- ISG System Off
- Conditions that Restart the Engine
- ISG Malfunction
- Calibrating the Battery Sensor
Good Braking Practices
WARNING
Whenever leaving the vehicle or parking,
always come to a complete stop and
continue to depress the brake pedal.
Shift the gear to the P (Park) position,
apply the parking brake, and ...
ISG System Operation
Prerequisite for activation
The driver's seatbelt is fastened.
The driver's door and hood are closed.
The brake vacuum pressure is
adequate.
The battery sensor is activated and
the bat ...
Other information:
Hyundai Tucson (NX4) 2022-2025 Service Manual: Repair procedures
- Removal
1.Disconnect the negative (-) battery terminal.
2.Remove the inside rear view mirror cover (A) and (B).
3.Disconnect the inside rear view mirror connector (A).
4.Loosen the mounted screws and push the ECM mirror base upward to remove the ECM mirror assembly (A).
- Inspection ...
Hyundai Tucson (NX4) 2022-2025 Service Manual: Variable Intake Solenoid (VIS) Valve
- Description
Variable Intake manifold Solenoid (VIS) valve is installed on the
intake manifold. The VIS valve controls the vacuum modulator which
activates a valve in the intake manifold. The ECM opens or closes this
valve according to engine condition (Refer to below table).
Engine Cond ...
