I am very old and crippled and the weather has been very cold and wet where we live near Galveston so not paying full attention to the Crossfire. Did try disconnecting the battery hoping to reset any sensors and did not work. Drove it around but no success so going to try a hack on this site which I use a 6mm hex to release the rear lid and see if that works Other than that will take to someone who specializes in Cedes. Thank you for your kind, great and generous offer but just to far away.