Do you have the Swiss Travel Pass and want to head up Mount Pilatus? This page has all the information you need.
Is Mount Pilatus Free with a Swiss Travel Pass?
No, you get a 50% discount to travel up Mount Pilatus with the Swiss Travel Pass. This includes either the gondolas and cable cars from Kriens, or the cogwheel railway from Alpnachstadt.
However, travel with the Swiss Pass from Lucerne to the base of Mount Pilatus is free. This includes the bus ride to Kriens, or a train or boat ride from Lucerne to Alpnachstadt.