One thing worth paying attention to is how your car behaves when the key fob is nearby. A friend of mine started noticing that his vehicle occasionally unlocked without him pressing anything. He also had trouble locking it from his usual distance. We talked about wireless interference around parking areas, and I found some information mentioning RF Signal Jammers alongside car security equipment and RF technology. Still, unusual locking behavior alone doesn’t prove someone is attempting a relay attack. I’d look for repeated unexplained incidents, unexpected unlocking, and security alerts. Keeping the fob away from exterior doors and windows, using a signal-blocking pouch, and asking a technician to inspect the keyless entry system are sensible first steps. It’s better to investigate calmly than jump to conclusions.