I'm trying to get the headlight spray to work on my '08 GS460. I have pressed the button in the drop down panel but the spray doesn't come out and spray the headlight. I only see a small puddle on the ground. This used to work before and also of the headlights has been replaced a year ago.

Is there a trick to make this work?

 

Try doing it with the headlights on.

 

I did. Spray still doesn't come out.

 

if you see a puddle then maybe your jets are clogged

 

Or a busted water line! Put the car on jacks take off the bumper splash gaurd or see if you can access the hoses and pump. Have someone turn on the washers and see what the problem is

 

I'll look into this. Is there a process for removing the front bumper? I have the document for the rear bumper but not front.

 

You might not need to pull off the front bumper, see if you can just pull the splash gaurd and it may give you access to the damage area

 

Look if you have the headlight function by looking at the your headlight. My 2010 GS350, I have the headlight sprayer button but my GS does not have the feature.

 

I'm going to pull the bottom panel off and see if I can find the damaged hose and repair or replace it.