I have a nishiki u lock. I lost the keys. Is it possible to get new keys or to have the lock re-keyed?

If you have lost the keys to your 2000 Mercury Sable 3.0, here are some possible solutions:

Retrieve the master key code: The master key code is usually found in the owner's manual or on a separate card that came with the vehicle when it was new. If you cannot find the master key code, you may be able to obtain it from a Mercury dealership by providing the vehicle identification number (VIN).

Program a new key: To program a new key, you will need at least one working key to use as a reference. If you do not have a working key, you may need to have a locksmith or Mercury dealership program the new key for you.

Replace the ignition switch and steering column lock cylinder: If you are unable to retrieve the master key code or program a new key, you may need to replace the ignition switch and steering column lock cylinder. This can be a more expensive option, but it will allow you to start the vehicle with a new set of keys.

It is recommended to consult a professional mechanic or locksmith for assistance with any of these options to ensure that the repairs are done correctly and safely.

Regrettably that is not possible you will need to get new keys cut to the lock or replace all the locks and get the keys coded to the vehicle security system

You need to see a locksmith or the dealer.

with new cars it is normal to have the one key code for all the locks on the car
if your ignition key is different to door locks or boot lock it is possible that a new barrel was fitted at some time requiring a new key where the barrel should have been recoded to existing key
it is still possible that a locksmith can re code the barrel to the door lock key reducing the necessity of having many keys

both sets, ?
if all is lost.
any lock smith can pick the lock.
or cut a new key, with your key code, lost that too?
the dealer can look it up, and then cut you a key too.
always have a backup. I only run copies, of orig. keys..
and keep a flat key in my wallet.

A key code is stamped on the lock cylinder to aid in replacing lost keys.

You can get a new key at the dealership, your going to need the ownership and the vin number to the car. They can get the key code to cut a new for you so you don't have to replace all the locks. Good luck and keep me posted.

Get out your wallet and go to the dealer! Not much else you can do. Those keys have imbeded security chips that must be programed by thr dealer.

As long as you know the key number, go back to your dealer.

If you don't know the number then you will have to get them all removed by professional ie the dealer or a tyre centre and buy a new set of bolts/nuts.