Factory sunroofs do have drain tubes that can get clogged causing leaks but they are easily cleaned out if you re aware of them.
Nissan titan roof leak driver.
What you are likely seeing is the seam sealer that covers the seam where the roof overlaps the outer roof rail panels.
Nissan usa official site.
After raining for a few hours i found water in the driver side floor mat.
Cutting a hole in the roof in my opinion has nothing to do with reducing structural integrity in a vehicle.
That seam sealer shrinks up and the paint goes with it.
What i did was bought some factory paint in a tube with clear coat on top of the cab with your roof moldings off take the paint and follow the line to the rain channel and take some black sealant inside and outside of the rivets.
14 but that s just the start of what the titan offers to help keep the driver and passengers safe.
After investigating it turns out the drain tube had become separated from the nipple on the drivers side sunroof drain.
Look up nissan recall information from the past 15 years by entering your vehicle identification number vin.
All nissan did was glob on some black sealant it took them about 3 tries and then i had to fix it.
I know for a fact that nissan has covered this issue on some of the first gen titan s.