I have an 04 suburban that has paint bubbling in several spots. The lower inside of doors and lift gate, outside of lift gate. My question is there anything I can do to help/fix this before it starts to peel off or is it too late. Would it be better to just leave it alone?
Thanks

 

The bubbling is caused by rust. It's too late, the rust has already taken hold inside the panels.

Same thing happened on my 01 Burb - the middle passenger doors are rusting at the bottom on the inside, and the rear quarter panels are rusting/bubbling just in front of the rear wheel wells.

Only thing to do is remove the panels, attack the rust, then sand and repaint. Or, in the case of the doors, replace them.

The expense to fix isn't worth it to me, so I've done nothing. Keeping it in the garage helps, to minimize nightly condensation and exposure to the elements.