Hyundai Santa Fe: ISG system operation / Auto stop

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

When ISG is on the engine will be stopped automatically when both of the following occurs:

1. Vehicle speed decreases to 0 mph (0 km/h) full stop condition.

2. Brake pedal is depressed and gear is in D (Drive) or N (Neutral).

The Auto Stop () indicator illuminates in green on the instrument cluster, when the engine stops.


Idle stop cannot reoccur again until the vehicle speed goes above 3 mph (5 km/h) and then returns again to the automatic stop conditions as previously mentioned.

In the Auto Stop mode, if the engine hood is opened, ISG system will be deactivated.

When the system is deactivated, the ISG off button indicator will illuminate and a message ‘Auto Stop is off. Shift to P or N to start engine manually’ appears on the cluster LCD display with a warning sound.

If this occurs, depress the brake pedal and restart the engine manually.

    ISG system operation

    Prerequisite for activation ISG system operates in the following situations. 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 battery is sufficiently charged Outside temperature is not too low or too high The vehicle is driven over a constant speed and stops The climate control system satisfies the conditions The vehicle is sufficiently warmed up ISG related parts are working properly The incline is gradual The steering wheel is turned less than 180 degrees and then the vehicle stops Information If the ISG light (white) is turned on on the instrument cluster and does not meet the ISG system operating conditions, the ISG system is not activated...

    Auto start

    When the engine stops automatically by ISG, the engine will restart if one of the following is done. - Release the brake pedal. - When Auto Hold is activated, take your foot off the brake pedal and then depress the accelerator pedal...

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    Air bag collision sensors


    To reduce the risk of an air bag deploying unexpectedly and causing serious injury or death:

    Do not hit or allow any objects to impact the locations where air bags or sensors are installed. Do not perform maintenance on or around the air bag sensors. If the location or angle of the sensors is altered, the air bags may deploy when they should not or may not deploy when they should. Installing bumper guards with nongenuine Hyundai or non-equivalent parts may adversely affect the collision and airbag deployment performance. Press the Engine Start/Stop button to the OFF or ACC position and wait for 3 minutes when the vehicle is being towed to prevent inadvertent air bag deployment. Have all air bag repairs performed by an authorized HYUNDAI dealer.

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