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

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

When the ISG light (yellow) is on while the ISG system meets operating conditions, have the system be inspected by an authorized HYUNDAI dealer.

Idle Stop and Go (ISG)

Idle Stop and Go helps reduce fuel consumption by automatically shutting down the engine, when the vehicle is at a standstill (for example, red stop light, stop sign, and traffic jam) subject to certain prerequisite conditions being satisfied as listed below...

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...

Other information:

Hyundai Santa Fe (TM) 2019-2024 Service Manual: Troubleshooting

Fail-Safe Mode Item Fail-Safe ETC Motor Throttle valve stuck at 5° TPS TPS 1 fault Replace it with TPS2 TPS 2 fault Replace it with TPS1 TPS 1, 2 fault Throttle valve stuck at 5° APS TPS 1 fault Replace it with TPS2 TPS 2 fault Replace it with TPS1 TPS 1, 2 fault Throttle valve stuck at 5° • When throttle value is stuck at 5°, engine speed is limited at below 1,500rpm and vehicle speed at maximum 40 - 50 km/h (25 - 31 mph)...

Hyundai Santa Fe (TM) 2019-2024 Owner's Manual: Detecting area

The smart liftgate detecting area extends approximately 20~40 in. (50~100 cm) behind the vehicle. If you are positioned in the detecting area and are carrying the smart key, the hazard warning lights will blink and the chime will sound for about 3 seconds to alert you that the liftgate will open...