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Actions To Take After Removing Battery Or Disconnecting Ground Terminal Of Battery Sensor

When removing the battery or disconnecting the battery terminal, always be sure to turn the ignition switch to OFF and disconnect the ground terminal from the battery sensor first.

When removing the battery or disconnecting the battery terminal, power supply is cut off and the information stored in the computer memory is volatilized. Therefore, setting information of some devices is initialized to the factory default. The device and functions initialized by removing battery are as follows.

No. Item Job contents when connecting battery
1 Clock Set the clock to the current time.
2 Center information display (CID)
  • Audio (settings that the customer set): Set to the contents checked before disconnecting the battery.
  • Navigation system (settings that the customer set): Time setting is not necessary because the time information is received via GPS.
  • Navigation system (settings that the customer set): Set the sound and other settings (items that were set in the selection) to the contents checked before disconnecting the battery.
3 Steering lock system If the engine does not start, initialize the steering lock system. For the initialization procedure, refer to "Diagnostics with Phenomenon" of "KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS)". Ref. to KEYLESS ACCESS WITH PUSH BUTTON START (DIAGNOSTICS)>DIAGNOSTICS WITH PHENOMENON>INSPECTION>ENGINE DOES NOT START .
4 EyeSight Set to the contents checked before disconnecting the battery.
5 Electronic throttle control system Turn the ignition switch to ON, wait for 10 seconds or more, and start the engine.
6 Engine control system
  • Let the engine run at idle until it fully warms up (the radiator fan turns 2 times or more) under no electrical load condition.
  • After connecting the ground terminal to the battery sensor, wait for 10 seconds or more and turn the ignition switch to ON.
7 Telematics Perform the Bluetooth connection procedure between head unit (audio without navigation) and smartphone. Ref. to REPAIR CONTENTS>NOTE>BLUETOOTH CONNECTION PROCEDURE BETWEEN HEAD UNIT (AUDIO WITHOUT NAVIGATION) AND SMARTPHONE (ONLY FOR MODEL WITH TELEMATICS) .
8 Some of Diagnostic Trouble Codes (DTC) -
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