Hi. New the J41, just picked it up last week and loving it.Yesterday I encountered what I think was my first "emergency". Shortly after takeoff, I set the HDG ON in the AP to follow a departure procedure as requested by Vatsim ATC - standard stuff and it worked fine. Once cleared, I engaged the NAV and set the FMC to my next waypoint and everything seemed fine. I had the Yaw Dampner and the AP both ON and green, along with the NAV on, and the ALT SEL + VS to get to my cruise altitude. About 1 minute into the climb, i heard a quick beep and ALL the lights on the AP went ON - with a yellow amber light and the solid green light. All settings: NAV, HDG, IAS, VS, etc... they were all on. There was no alert at the time other then icing detected which was quickly dealt with using the ice boots and heating.Any ideas? I could not figure out what happened or how to reset it. On reaching my destination my APPR would not work and would never engage the localizer.thanks