Replace spark plugs on 2003 Nissan pathfinder?

To replace the spark plugs on a 2003 Nissan Pathfinder, first, ensure the engine is cool and disconnect the negative battery terminal. Remove the ignition coils by unscrewing them and pulling them out, then carefully extract the old spark plugs using a spark plug socket and ratchet. Install the new spark plugs by hand to avoid cross-threading, then torque them to the manufacturer's specifications. Finally, reattach the ignition coils and reconnect the battery terminal.