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markitzero

Water leaks in headliner

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I've had a water leak appear near the passenger side of the controls for the sunroof and such a few times now. I checked with the dealer and the solution was to open the sunroof and spray compressed air into the sunroof drains. This has happened a couple of times now. After heavy rain and wind yesterday I have a leak in a new place, on the a-pillar. If memory serves me the dealer told me this could be related to the antenna that sits on the roof on the drivers side. Does anybody know how to solve this?

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The shark fin antenna has developed a leak.. Take it to the dealer and get it fixed..

You're going to need a new antenna.. The new one will need a bead of clear silicone around the outside of the foam seal before you install it.

 

Sent from my SM-G965U using Tapatalk

 

 

 

 

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If you are under warranty just let a dealer replace the shark fin.  If you are out of warranty or want to tackle it yourself here's a video on a Silverado (should be similar) as how to access the antenna.

 

Good luck

 

 

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2 hours ago, markitzero said:

I've had a water leak appear near the passenger side of the controls for the sunroof and such a few times now. I checked with the dealer and the solution was to open the sunroof and spray compressed air into the sunroof drains. This has happened a couple of times now. After heavy rain and wind yesterday I have a leak in a new place, on the a-pillar. If memory serves me the dealer told me this could be related to the antenna that sits on the roof on the drivers side. Does anybody know how to solve this?

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IMG_1755.jpg

Most likely the Onstar antenna, other possibility is the actual gasket on the sunroof. My 14 leaked in a few spots, and they did change the gasket along with the antenna. There were two types back then, a one piece without a "cut" in that they had to put on like a sock, and the new and improved on with a cut in it that did not leak. 

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My advice...find another Tahoe you like & trade that thing in. Had a 2015, started leaking 3 months into ownership. Same areas, same excuses as to where the leak was coming from. long story short, fought GM for a year, went into lemon law process. Was able to find a dealer willing to take it in on trade, ended up with a new Z71. The roofs on these are glued on. Once the leak starts, it may never be right again. Check the carpet in the second row under the seats. I bet it is soaking wet. Your HVAC controls will be the next thing to act up. I'd part ways with that thing quick. My own experience with leaks was awful, our new Tahoe, not a single issue. Had it for a yr & a half now.

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11 hours ago, Adam Hickman said:

My advice...find another Tahoe you like & trade that thing in. Had a 2015, started leaking 3 months into ownership. Same areas, same excuses as to where the leak was coming from. long story short, fought GM for a year, went into lemon law process. Was able to find a dealer willing to take it in on trade, ended up with a new Z71. The roofs on these are glued on. Once the leak starts, it may never be right again. Check the carpet in the second row under the seats. I bet it is soaking wet. Your HVAC controls will be the next thing to act up. I'd part ways with that thing quick. My own experience with leaks was awful, our new Tahoe, not a single issue. Had it for a yr & a half now.

Welcome to the site. We’re they able to track down where the leak first started? 

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Nope, they replaced the likely culprits, had the windshield out. Gutted the interior. Put it in a pressurized balloon & sprayed water on it for 3 days. They agreed it leaked, could not stop it & were unwilling to work on it anymore. Also wanted no part in taking it in on trade.

 

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