For this past year's winter hibernation, I stored the 2006 987S in an off-site garage without power, so I had to pull the battery (and kept on a maintainer in the workshop back home). Usually, I keep the car on the Porsche battery maintainer, but the Turbo got the heated spot at home this year. Hence the Boxster got stored off-site.
In late March I put the fully charge OEM battery in the car, and also got the "PSM Failure" as expected per the Owner's Manual. Within the first 1-2 blocks of driving, the light cleared, also as expected. All normal.
Bugley, have you driven the car yet? It should clear.
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