My advice would be to take it for a drive like you stole it, no changing up to top gear, aggressive down shifts into corners, 4/5th gear only on a duel carriage way.
For a nice 30 min drive thrash the hell of it and the light should go away.
Hey there, need a bit more help with same car, think it’s the Syrinco mesh, it’s a bit tight getting in into gear. Any easy fix, or it it a rebuild?