An updates? I have identified 3 bubbles on the front edge of my hood. One looks like yours and the others are actual bubbles, perfectly round and raised.
FYI In 2016 I had corrosion blisters starting on the leading edge of the hood on my two year old (at the time) 2014 Chrysler T & C and the service department of my local Chrysler dealership took pictures and sent them to Chrysler. Chrysler then approved my repair and furnished me with a brand new hood, which the dealership then painted for me ahead of time. The color didn't have to be blended into the fenders because my T & C was black... All I had to do was show up one morning and they swapped out my blistered hood with the new one and I was on my way home in 30 minutes. I was very impressed with Chrysler Customer Service and the performing dealership!
CHRYSLER PACIFICA LIMITED
Exterior Color: Brilliant Black Crystal Pearl Coat Exterior
Interior Color: Black / Diesel Interior Colors
Engine: 3.6L V6 24V VVT Engine with ESS,
Customer Preferred Package 27P, Uconnect® Theater w/
20-Speaker Harman Kardon Sound Goup,
Advanced SafetyTec Group, KeySense, 20" Wheels