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

Hyundai Santa Fe (TM) 2019-2024 Owner's Manual / Driving your vehicle / Idle Stop and Go (ISG) / ISG malfunction

ISG system may not operate when there is a malfunction with the ISG sensors or ISG system.

The following will occur, when there is a malfunction with the ISG system:

The Auto Stop () indicator will illuminate in yellow on the instrument cluster.
The light on the ISG OFF button will illuminate.

Contact an authorized HYUNDAI dealer.

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...

Calibrating the Battery Sensor

[A] : Battery sensor 1. Turn off the engine. 2. Disconnect all electronic devices that were additionally installed after the vehicle was delivered, such as navigation, dashcam, etc...

Other information:

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Hyundai Santa Fe (TM) 2019-2024 Owner's Manual: Electrochromic mirror (ECM) with HomeLink® system

Your vehicle may be equipped with a Gentex Automatic-Dimming Mirror with an Integrated HomeLink® Wireless Control System. During nighttime driving, this feature will automatically detect and reduce rearview mirror glare. The HomeLink® Universal Transceiver allows you to activate your garage door(s), electric gate, home lighting, etc...