I have Pierzo remote control auto alarm system and remote control door lock. Sometimes the Pierzo alarm systems automatically arms itself while I'm in the car even though I haven't touched the remote....could it be the sensor is just plain sensitive to movement (or is getting old, the alarm system's as old as the car). It's weird because then I have to click on the key remote to disarm the alarm system and I'm on the inside.
Today when trying to turn the ignition, the car door locks didn't automatically lock when they were supposed to.
Could it be combo of electrical system of the locks being old and also the key remote (I changed the battery a few months ago too).
