Cars with remote keyless entry and push-button start systems are vulnerable to various digital car theft tactics. Here's how to protect yourself.

Regardless of how many times you press the button or smack the key fob against the palm of your hand, the doors won't unlock.

TAMPA, Fla. (BLOOM) — You’re rushing to work, the gym, or the grocery store when it happens — you press your key fob, and nothing. No clicks, no unlock, no start. If your car key fob battery has died ...