?GLASS ROOF NOT CLOSING . Glass roof will not close. At least one of the following fault codes is stored: 30215: Slide/tilt sunroof: invalid characteristic curve, no standardization exists 30295: Electric sliding headliner: invalid characteristic curve, no standardization exists 302A0: Electric sliding headliner: System not standardized 30220: Slide/tilt sunroof: System not standardized Roof function center software.