I noticed when it rains my GPS was spotty and now the whole system went out on my 2016 Tahoe. Took it to Chevy Aug 2018 and quote to fix GPS was $800, I didn't have it fixed. Now when it rains the headliner gets wet and water drips onto the center dash (radio/gps screen, climate control). The shark fin antenna has a weep hold on the backside and the roof slants to allow water to penetrate the wiring and water is getting inside of my vehicle. My Tahoe has 68,000 miles and there is no warranty for this? Anyone else having issues?

Headliner of 2016 saturated with water and dripping inside

Water dripping 2016 Tahoe when it rains

Center counsel gets wet from GPS antenna leak 2016 Tahoe