I saved the Lyra pawn as a variable and did a re-possess.
The ingame debugging shows this debug info:
Left is before possess. Right is after.
Left shows the avatar name, right dont show this.
Left shows 11 grey GA_, right shows same GA_s but with status CantActivate
Maybe this can point someone in the right direction of how to repossed the Lyra Character after possessing a vehicle.