Servicing the fuel system

Change the filters,

Sounds simple. But why does the dealer want $140 to do this? There was a mention of injectors - something more complicated?? It's a 2006 Prius with 100,000 miles on it. Any other thoughts?

Does it has a problem that servicing the fuel system is supposed to help? Dealers are out to make money. One way is to sell stuff that people don't need. Servicing the fuel system might mean hooking the injectors to a cleaning solution. Probably not needed unless you make a habit of buying bad gas.

yes, don't fix it if it ain't broken. amen.