Hyundai Santa Fe: 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 (.png)
) indicator illuminates
in green on the instrument cluster, when the engine stops.
Information
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.
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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...
Other information:
Hyundai Santa Fe (TM) 2019-2025 Service Manual: Rear Door Module. Components and components location
..
Hyundai Santa Fe (TM) 2019-2025 Service Manual: Troubleshooting
Troubleshooting Symptom Possible cause Countermeasure Wind noise around the door Arise the gap on weatherstrip Replace weatherstrip Water leaks from panorama sunroof Miss install of panorama sunroof frame weather strip and deforming Replace seal breakage Fill with sealant Wind noise on Panorama Sunroof Deflector deformation and deviation Replace or Remounting Noise while panorama sunroof is working (noise when opening or closing) Accumulation on the guide rail or rear rail Clean guide rail/rear rail and apply grease Tilt lever shoe excessive wear and breakage Replace tilt lever shoe Panorama Sunroof malfunction (Motor work, sunroof move partially or does not move Accumulation on the guide rail or rear rail 1...
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Air bag collision sensors
WARNING
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.