Five weeks in & no issues...and then....about 8pm last nite the horn started to sound for five to ten seconds continuously. I hit unlock on the fob and rearmed her. About 6am this morning almost ten hours exactly it happened again. This time I double clicked the fob so as to unlock both doors and then rearmed her. Looking forward to 4pm to see if it stopped. Seems to be on some weird cycle. The only thing I did differently was I didn't arm the car on Saturday nite for one nite. Really strange and annoying. Only 325 miles and I don't mess with the electronics in the car. Owners manual was no help. Any ideas?