How do you replace the spark plugs on a 2004 Hyundai santa fe v6?

To replace the spark plugs on a 2004 Hyundai Santa Fe V6, first, disconnect the negative battery terminal to ensure safety. Remove the engine cover if applicable, and then carefully detach the ignition coils by unscrewing them and pulling them off the spark plugs. Use a spark plug socket and ratchet to unscrew the old spark plugs, then install the new plugs by hand to avoid cross-threading. Finally, reconnect the ignition coils and the battery terminal, and ensure everything is secured.