It's a 2015 LX570. Headlight washer sprays whenever headlight is turned on. This includes when headlight is on both 'ON' or 'AUTO'. If in auto, when driven across a dark terrain / at night, when headlight switches on, the washer will be activated. This is after my 2 yr old messes with the car at the driver's seat. But it's more like something went wrong, than it's an option where I can toggle on or off. Is there any ideas to remedy this issue while I'm having a road trip as we speak? Thanks a ton!