Where is the reservoir for the rear window washer for 2006 Toyota highlander?

The reservoir for the rear window washer on a 2006 Toyota Highlander is located in the engine compartment. Specifically, it is situated on the driver's side, near the windshield. The reservoir is typically a translucent plastic container, allowing you to see the fluid level inside. To access it, you may need to remove the engine cover if it's present.