Hyundai Santa Fe: Idle Stop and Go (ISG) / ISG system off

LCD display messages

The messages are displayed on the instrument cluster to help use ISG system. Auto Stop is Off. Shift to P or N to start engine When the system is deactivated, the ISG off button indicator will illuminate and a message will appear on the cluster LCD display with a warning sound in the following situations...

Forced to restart engine

The engine is automatically restarted in the following situations. 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 () indicator blinks in green for 5 seconds on the instrument cluster when the engine is restarted...

Other information:

Hyundai Santa Fe (TM) 2019-2025 Service Manual: Start/Stop Button. Repair procedures

Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the driver crash pad lower panel. (Refer to Body - "Crash Pad Lower Panel") 3...

Hyundai Santa Fe (TM) 2019-2025 Service Manual: Relay Box (Passenger Compartment). Repair procedures

Fuse Inspection 1. Check that the fuse holders are loosely held and that the fuses are securely fixed by the holders. 2. Check that each fuse circuit has the exact fuse capacity...