Keys are locked inside - 2003 Ford Focus

Usually with the spare key. Every new car has two main keys and a valet key. There are some forced entry ideas here.

https://www.google.com/search?q=04+mazda+6+keys+are+locked+inside

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Remove the back seats and crawl through to unlatvch the trunk.

No, the computer does not require reprogramming. Try sitting in the vehicle and try locking your door while inside. Does your door lock immediately unlock itself? This may be caused due to having a set of your keys inside the car. Most Nissan cars will not allow you to lock the door if you have the keys inside the car.

Call a locksmith, it's cheaper in the long run

locked keys inside, keep spare in wallet, i shave them down
or buy a flat key for pocket, (safe for life)
there are only 3 ways
1: lock smith picks lock.
2: you give him key num, and he cuts one with special tool.
3: break window (slim fails)
4: get one at dealer. they look it up and bingo.
5: drill out lock , and buy new lock.

1993lincoln mark viii how do I unlock my car keys r locked inside

what model is this renault ,megane or a laguna or is it a dacia made in china thing

call aaa or car dealership. they usually have someone that can shim it to unlock. do you have onstar or similar. they can remote unlock car usually

do you have two keys to this car and do any one work at all. Someone has put something inside the key tumblers and destroyed the lock with maybe a use of a screw driver is why your keys will not work now at all !! You might just replace with a newer lock because inside lock is damaged.

apply some wd 40 (can get in walmart) spray on the keys and inside the locks,and will work.