Plain answers about car keys, fobs, ignitions and lockouts.

How to unlock and start a push-button car when the key fob battery is dead, and how to tell a dead battery from a bad fob.

The warning signs of a locksmith scam when you are locked out of your car, and the four questions that protect you.

How to tell which kind of car key you have, how each one works, and what that means when you need a replacement.

Why a car key will not turn in the ignition, the safe things to try yourself, and when the ignition needs repair.

What to do when the keys are locked inside the car, what not to try, and when it is an emergency.

How a dealer and a mobile locksmith compare for a replacement car key on cost, speed and convenience, and when the dealer is the only option.

A calm plan for when every key to the car is gone: what to check, who to call, what paperwork you need and how the new key is made.

The six things that set the price of a replacement car key, and the questions to ask so the quote you hear is the price you pay.