Car Locks Repair
A car locksmith is usually equipped to work with electronic and manual door locks. Manual lock problems are more common but still difficult to resolve.
WD-40 is a great lubricant to use during the winter. It will absorb the moisture and prevent it from freezing in the keyhole.
Door Lock Cylinder Replacement
It's a good idea to replace the door lock cylinders immediately in the event that you lose your car keys, or suspect someone else has. This will ensure you are the only person to access your vehicle and keep thieves out. Unfortunately replacing a car's door cylinder can be quite difficult, as it requires at least partial dismantling of the interior door panel in the majority of instances. This is not a job that many people would like to tackle on their own, as it can be very dangerous in the wrong way.
The lock cylinder has to be removed from the handle. You'll have to locate the screw at the edge of the housing (usually the upper right corner). It may be hidden under several pieces of plastic or barely visible. If you cannot locate it then use a screwdriver to remove any trim panels blocking your view of the screw. Then, use a screwdriver, awl, or small screwdriver to open the tab on the lock cylinder that holds it and remove the cylinder straight out of the housing.
Once the cylinder has been removed and reassembled, there are some things that must be done to prepare it to be used. The keyway must be cleaned to get rid of dirt and grease. The cylinder must be lubricated so that it is not stuck in the lock. The easiest method of doing this is to use brake cleaner, which will clean and lubricate the lock's cylinder components. Once the cleaner is used to clean the cylinder, you can use a screwdriver to remove the bolt of 10mm that connects the handle to the cylinder housing.
Install the new cylinder, and then use your original key to operate it. It is best to purchase one that is the same model and brand as your existing one. This will ensure that it fits properly and seals securely. Test the door after installation to confirm that the lock is operating properly and that it is securely closed.
Door Lock Cylinder Repair
The lock cylinder is the part of your car door that keys fit into to unlock or lock the door. If the key is stuck inside the lock or you have difficulty turning it, this could indicate that the door cylinder needs to be replaced.
It's usually near the door handle, although certain cars hide them behind an aluminum piece. When you turn the key, the pins of the cylinder line up with the cuts on the key head and allow you to move the lock and open the car door. If you have a surface mounted cylinder take off the faceplate on the door handle. Unscrew one or more setscrews for the cylinder.
After the screw has been removed, you can turn it until you are able to remove the door. Be careful not to lose any screws while doing this, so make sure to put them in a bag or safe location to be able to replace them in the future. Then, insert the key into the lock and check if the tumblers and pins are movable. If the cylinder is stumbling or you hear or feel clicking, it's time to replace it.
You can buy new cylinders for your vehicle at any auto parts shop, although you'll need to know the make and model of your car prior to you go shopping. You can also call an expert locksmith to replace the door cylinder. They'll be able to match the new lock to the key you have already, so you can keep using the original lock.
The most common problem with the cylinder of a car lock is that it will not rotate when you attempt to use your key. This is usually caused by corrosion or dirt that has accumulated and is preventing the cylinder from turning freely. It is simple to fix this problem by lubricating your mechanism. You can use brake cleaner to rid your cylinder of any rust and grime or commercial lubricant like white grease. This method is only effective on a cylinder that is jammed. It will not fix any other problems.
Door Lock Repair
A door lock can be blocked because of dirt, rust, or other debris. This can be fixed by spraying WD-40 over the mechanism. This will allow you to loosen the mechanism and also prevent the issue from happening in the future. If you're unable to turn the lock, try wiggling the rod using needle-nosed pliers. If this doesn't work, a locksmith should be called to replace the lock.
Misalignment is another common problem with doorlocks. This could make the lock difficult to operate and is a security concern because it makes the door easier to break into in a burglary attempt. This issue can be fixed by a locksmith. However, it is typically possible to fix the issue yourself.
To resolve this issue begin by inspecting the door lock to find out the cause of why it does not operate properly. If the problem is due to an incorrectly aligned strike plate or deadbolt tighten the screws holding these items. Then, reposition the bolt and strike plate to align them correctly with the door frame.
If the issue is that the key won't turn or slide in the way you want, a tiny amount of graphite in the keyhole might help resolve this issue. You can apply graphite by squeezing the tube or dusting the key with a spare. Inject the key into the lock, and then turn it a couple of times to get the graphite working into the mechanism. If this doesn't work then you should take off the doorknob and examine the spindle. It might be worn out.
The process for removing the door handle or the door panel differs from vehicle to car, but the general procedure is similar. After you've removed the panel and the handle, you must locate all of the set screws that secure the lock cylinder in place. These are usually located in the middle of the panel or on the inside of the door handle dependent on the manufacturer and model. Remove the screws and then carefully align the cylinder with the keyway. There is a risk of damaging the components if tightening too tightly the screws.

Door Lock Replacement
Replace your lock if it is damaged or appears old. It can give you a fresh look. This is a simple task that you can complete at home in a few steps. Take the time to check the latch and deadbolt settings on your door. You'll need make sure that your new locks have been installed correctly.
Remove the screws that secure the knob plate in the door. Then, pull the knob as well as latch off. If the plate inside is decorative and does not have screws, you can carefully remove it using the screwdriver. The plate could be secured by pins or break off from the edge. After the plate is removed, it is easy to take off the deadbolt as well as the latch.
Now is the time to put the new plates in the proper position. The interior and exterior plates should be aligned with the deadbolt holes of the door jamb. The long metal spindle of the lock cylinder should pass through both holes. After the plates are set, you can thread the screws into the holes to secure the plates in place. If the plate does not have screw holes then you can simply slide it over the latch.
When putting the lock back together, make sure not to reuse the existing screws (unless you have the same color). Instead, use the screws that came with the lock kit you purchased. If you don't have the right size of screws, go to your hardware or home improvement store and buy some that will match the rest of your door lock's hardware.
Make sure that your new deadbolt and latch plates are the same length as the original ones, and that they are placed over the latch hole in the door jamb. Once all the parts are in place and tightened, tighten the screws. You can now test the deadbolt and latch by using your key. If nissan lock repair will not turn, you must call locksmith.