Disconnect and Reconnect the Battery

The Kia Picanto JA (2017–present) requires a correct procedure when disconnecting or reconnecting the battery to avoid electrical issues and to ensure that features such as windows and the trip computer are re-initialized properly. This guide explains the DIY-friendly steps.

Before Disconnecting the Battery

• Make sure the ignition is switched OFF and the key is removed.
• Switch off all electrical consumers (lights, radio, climate control).
• If your audio system requires a security code, check that you have it before disconnecting.
• Make a note of preset radio stations, clock settings, and user preferences.

How to Disconnect

1. Open the bonnet and locate the battery.
2. With a 10 mm spanner, loosen the clamp on the negative (–) terminal first and remove it.
3. Next, loosen and remove the positive (+) terminal.
4. If you are removing the battery completely, undo the retaining clamp or bracket and lift it out carefully (it can be heavy).

After Disconnecting

• If working near pyrotechnic components (e.g. airbags, seat belt pretensioners), wait at least 3 minutes before starting work.
• Always store the battery upright in a dry, ventilated area if removed.

How to Reconnect

1. Place the battery back in the tray and secure it with the bracket.
2. Connect the positive (+) terminal first and tighten securely.
3. Then connect the negative (–) terminal and tighten.
4. Check that the clamps are tight and free from corrosion.

After Reconnecting

• Reprogram and reset the trip computer settings.
• Reset the date and time on the display.
• Re-enter your radio security code (if required) and restore preset stations.
• Re-initialize the power windows on the Kia Picanto JA (2017–present) by fully lowering and raising them, holding the switch for 2 seconds at the top.
• Re-initialize the electric sliding/tilting roof (sunroof) on the Kia Picanto JA (2017–present) by operating it fully open and closed once.
• Check the climate control unit to ensure it is working normally.

Troubleshooting & Tips

• If the engine struggles to start after reconnection, check that the clamps are clean and tightened properly.
• Apply petroleum jelly or dielectric grease to terminals to prevent corrosion.
• A battery typically lasts 4–6 years; slow cranking or dim lights can indicate it’s time for replacement.
• Dispose of old batteries responsibly at a recycling center.

Disclaimer: This guide is for general information. Always follow your vehicle’s official service information and safety instructions. Perform repairs at your own risk.