Question type: Maintenance & Repair Random times... Day or night... Hot or cold (I Live in Las Vegas, Nevada), Nights gets to mid 40's (f) daytime highs lately low to mid 70's (f) The car alarm goes off at random with nobody and/or nothing near the vehicle. Needless to say, my neighbors are very unhappy with me right now. I'm a retired Air Force jet mech and I'm pretty handy with tools and ohm/volt meters. Any troubleshooting tips? 3 Answers