I have the same issue. There's not really much you can do aside from removing the whole dash to try re-glueing it. I had my dash out to work on my HVAC servos and tried to re-glue it with some clamps, but it's already starting to come up again. I've thought about getting some foam of similar color to the dash to stuff up there to keep pressure on it so it won't curl back and look as bad.