Yes youtube makes it look easy.....and the general procedure reproduced from the service manual does too before the rather off-putting table, of the possible consequent effects of disconnecting the negative terminal from the 12V battery rears its head.
I need a bit of reassurance as a newbie that in reality a D.I.Y. battery swap is straightforward, and unwanted consequences, maybe even requiring reseting by dealer diagnostic tools is not the norm in what should be a straightforward piece of normal maintenance. This is what I have gleaned about the process so far.
Precaution for Removing 12V Battery
Now the "Procedure"1. Check that ESVE is not connected. NOTE: If ESVE is connected, the air conditioning system may be automatically activated by the timer A/C function.
2. Turn the power switch OFF....ON.....OFF. Get out of the vehicle. Close all doors (including back door).
3. Check that the charge status indicator lamp does not b link and wait for 5 minutes or more. NOTE: If the battery is removed within 5 minutes after the power switch is turned OFF, plural DTCs may be detected.
4. Remove 12V battery within 1 hour after turning the power switch OFF...ON....OFF. NOTE: The 12V battery automatic charge control may start automatically even when the power switch is in OFF state.
• Once the power switch is turned ON....OFF, the 12V battery automatic charge control does not start for approximately 1 hour.
After all doors (including back door) are closed, if a door (including back door) is opened before battery terminals are disconnected, start over from Step 1.
After turning the power switch OFF, if “Remote A/C” is activated by user operation, stop the air conditioner and start over from Step 1
and finally the "possible consequences bit"Removal and Installation
1. Disconnect the 12V battery cable from the negative terminal. Refer to PG-6, "Precaution for Removing 12V Battery"
CAUTION: To prevent damage to the parts, disconnect the 12V battery cable from the negative terminal first.
2. Remove cover of 12V battery positive terminal.
3. Disconnect the 12V battery cable from the positive terminal.
4. Remove battery frame nuts and battery frame.
5. Remove 12V battery.
Install in the reverse order of removal.
CAUTION:To install the 12V battery, carefully read the following instructions.
• To prevent damage to the parts, connect the 12V battery cable to the positive terminal first. After connecting 12V battery cables, to securely supply 12V battery voltage, ensure that they are tightly clamped to 12V battery terminals for good contact.
• To securely supply 12V battery voltage, check 12V battery terminal for poor connection caused by corrosion
So I wonder what PG86 has in store......this together with links to other sections of the manual with detailed procedures for the items mentioned.Reset electronic systems as necessary. Refer to PG-86, "Special Repair Requirement"
REgards NeilADDITIONAL SERVICE WHEN REMOVING 12V BATTERY NEGATIVE TERMINAL
Special Repair Requirement
EV Control System
VCM Timer Adjustment
Power Window Control System
Power Window System Initialization
Heater & Air Conditioning Control System
Temperature Setting Trimmer
Inlet Port Memory Function (REC)
Inlet Port Memory Function (FRE)
Foot Position Setting Trimmer
Compressor Operation Setting at Defroster Mode (Timer/Remote/Climate Control)
Setting of Compressor Maximum Rotation Speed During Pre Air Conditioning
Setting of Compressor Maximum Rotation Speed During Idling
Audio, Visual & Navigation System
Audio (Radio Preset)