Have had no problems with my alarm until this morning. Not sure if it was a button i pressed or what. Model EZSDEI478. Only a couple things I noticed were different. Theres no more alarm sound. The lights still blink like they should but theres no sound. And the blue LED stays a solid blue instead of blinking. Mabye its in valet mode and i dont know how to take it out? I checked all the fuses under the dash and all were ok. The knock sensor was in working order. When i locked and unlock the car it works on the remote and i hear the relay clicking over.