Had the same issue. Mine had even less kms than yours. LBS sent it back to get it fixed by rock shock. Its a very common malfunction so it was free of charge even though the warranty was over.
I have the same issue. Rockshox really fixed it for no charge even if it's outside of warranty?
Okay I lied i had to pay half the shipping fees. Ask your lbs, tell the guy this is a common problem you see come up on the internet. He'll call his rep from sram and figure it out.