Hyundai Santa Fe: DC DC converter / Repair procedures

Hyundai Santa Fe (TM) 2019-2025 Service Manual / Engine Electrical System / Charging System / DC DC converter / Repair procedures

Removal

1.	Turn the ignition switch OFF and disconnect the battery (-) terminal.

2.	Remove the heater & A/C control unit. (Refer to Heating, Ventilation and Air Conditioning - "Heater & A/C Control Unit")

3.	Disconnect the DC/DC converter connector (A).

4.	Remove the DC/DC converter (B).

Installation

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After reconnecting the battery negative cable, ISG function does not operates until the system is stabilized, about 4 hours. If disconnecting the negative (-) battery cable from the battery during repair work for the vehicle equipped with AMS function, Battery sensor recalibration procedure should be performed after finishing the repair work.

1.	Install in the reverse order of removal.

Schematic diagrams

Starting System

Other information:

Hyundai Santa Fe (TM) 2019-2025 Owner's Manual: Limitations of the system

Navigation-based Smart Cruise Control may not operate normally under the following circumstances: The navigation is not working properly Speed limit and road information in the navigation is not updated The map information and the actual road is different because of real-time GPS data or map information error The navigation searches for a route while driving GPS signals are blocked in areas such as a tunnel The navigation is updated while driving Map information is not transmitted due to infotainment system's abnormal operation A road that divides into two or more roads and joins again The driver goes off course the route set in the navigation The route to the destination is changed or canceled by resetting the navigation The vehicle enters a service station or rest area The speed limit of some sections changes according to the road situations Android Auto or Car Play is operating The navigation cannot detect the current vehicle position (ex: elevated roads including overpass adjacent to general roads or nearby roads exist in a parallel way) The navigation is being updated while driving The navigation is being restarted while driving There is bad weather, such as heavy rain, heavy snow, etc...

Hyundai Santa Fe (TM) 2019-2025 Owner's Manual: Engine Start/Stop button

Whenever the front door is opened, the Engine Start/Stop button will illuminate and will go off 30 seconds after the door is closed. WARNING To turn the vehicle off in an emergency: Press and hold the Engine Start/Stop button for more than two seconds OR Rapidly press and release the Engine Start/Stop button three times (within three seconds)...