What causes service engine soon light on Nissan Pathfinder?

The "Service Engine Soon" light on a Nissan Pathfinder can be triggered by various issues, including a loose or damaged gas cap, problems with the vehicle's emissions system, or issues with the engine's sensors. Common causes also include malfunctioning ignition components, fuel system problems, or exhaust system leaks. To accurately diagnose the issue, it's advisable to use an OBD-II scanner to retrieve any error codes stored in the vehicle's computer system. Regular maintenance can help prevent such alerts from occurring.