for that old of a hybrid, if the seals are original, you're lucky it has lasted this long without leaking.
for seals that old, permanent compression may be an issue.
the seals are probably not sealing as well.
i would inspect the seals very closely.
that or the seals around the clearance lights, above the bunk door, may have been compromised.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC