[Redcross631]

Just as i suspected. So i went in and put a deposit on a 2020 2lt 4cyl awd yesterday. Right before the test drive i opened the trunk and water seemed to be dripping from the bump stop on the lift gate(hatch) passenger side. Having come across these types of issues from project cars i pulled the plug out immediately and sure enough a stream of water accumulated inside started to pour out of the hole. So there is definitely a leak somewhere and rain water is collecting inside which is causing it to rust. It's a quality control issue.

Makes me wonder wtf else i should be ready for with this vehicle. I might just cancel and ask for my deposit back but i like the car a lot. The other one i was considering was the mazda cx5 grand touring reserve with the 2.5t.

 

[Redcross631]

Bring it back to the dealer. I would have them give you a new hatch and i would leak test that new one myself.
Once you see a little bit of rust on the outside, the inside will have more especially if that's where it started. You could sand and paint but it'll come right back in a little bit. It's like cancer.

 

[Redcross631]

Pull that plug out to see if anything comes out now then pop it back in place. Why let water pool and sit in there till your next car wash? That's an open invitation for rust to start

And yes i feel this down the road will definitely be a common issue on these cars if not addressed soon enough. It's like how 5th generation maximas for example mostly have rotten quarter panels and radiator supports. For the blazers i see "rotten hatch" threads left and right especially if not addressed soon enough.