Changed the oil on the 2013GT for the first time, wanted a look around so I removed the side panels to get a good view, changed the oil and filter, cleaned the screen and buttoned it all back up. Topped it all off while on the lift table then backed it off, thirty minutes later went for a ride....all mileages except total mileage were erased, windscreen stuck in low position, slightly over a half tank of gas now reads one quarter and fuel light came on, all the info stored in the display was erased (average speed, MPG, ect.) stopped and filled tank, took 2 gallons, and fuel gauge is working again. I never touched the battery or unplugged anything, I reset the windshield calibration with the GS-911 and set the service minder. It's acting like a dead battery or disconnected battery, just from an oil change...