Where is the fuse box located for the signal lights?

SOURCE: clock and side mirrors

The fuse block is usually under the dashboard, as well as additional fuse box under the hood. Your owners manual would give u that info, if u don't have one, it can be purchased @ Lexus site, don't know how much though. If fuses aren't labeled as u say, just pull them out 1 at a time and check to see which one is burned out. An auto parts store would probably help u locate the fuse box under the dash, (which is where I think the blown fuse is) they want to sell parts, and offer a lot of free services to customers such as testing components, installing wipers etc. good luck countrycurt0

SOURCE: where is the fuse box located for a 92 Lexus

there are fuse blocks under the hood, under the driver side of the dash and under the passenger side also. the ones under the dash may be located behind the kick panels.

SOURCE: Rear windows won't go down

This sounds like a stuck switch,try to unplug the switch (drivers side window) first and it should cure your problem.Let me know if this does it,,if not i will help you solve this issue