Windshield Washer Fluid leak

Steved460 said:

Hi
This is happening to my 2021 model. I have traced the lines and tested for fluid flow to the connection above the battery. It is good. My rear is not spraying at all. I checked the connections under the right-side rear and under the rear headliner and they are connected. I am going to separate the hose above the headliner and see if fluid is reaching this point. If not, it has to be the nozzle or where the hose is attached to the nozzle or I am missing where a hose connection is. Feel free to chime in if you guys know something I don't!! Now I just have to figure out how to access the nozzle area.

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StephenPT said:

There's a connection inside the cabin just as the hose comes inside. You'll need to remove the rear floor storage console, D-Pillar trim and rear sidewall trim to see it. It's this connection point circled in the picture. If that is leaking, then the area under the floor storage is probably filling up with washer fluid and hence you can't find the leak.

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Jackey said:

Hello new to the forum, late to the party!
We have a 2021 Yukon, took it to the dealer because of the same washer fluid issue y’all have. They filled it, nothing happened.
But, they had to drive it for another issue I’m having with the drive train. Came back, tank was empty. They told us they’d have to take the dash apart. Huh?
We couldn’t leave it all day, so brought it home.
Guess what the floor in between 2nd & 3rd row is wet. Thanks to this thread, my husband has a starting point to fix it ourselves( hopefully).
She is going back on 9/23 for the drive train issue to be fixed.

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