I recently replaced my rear glass with one that has a working defroster grid.
Now every time I unlock the truck, the rear glass pops open.

Is this normal behavior ? I have been driving this truck for over four years
and the only way I opened the rear glass was by the dash button.

I didn't mess with any wiring, just two hing pins and the lift shocks.
I did however lube the latch with some white lithium grease.