How do you change the spark plugs on a 2006 Suzuki Aerio?

To change the spark plugs on a 2006 Suzuki Aerio, first, ensure the engine is cool and disconnect the negative battery terminal. Remove the ignition coil cover and unclip or unscrew the ignition coils to access the spark plugs. Use a spark plug socket and ratchet to carefully remove the old plugs, then install the new plugs, ensuring they are properly gapped. Reassemble the ignition coils and cover, reconnect the battery terminal, and start the engine to check for proper operation.