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How to Jam a Car Door Lock

This article is a collaborative effort, crafted and edited by a team of dedicated professionals.

Contributors: Muhammad Baballe Ahmad, Mehmet Cavas, Sudhir Chitnis, and Zhen-ya Liu.

✓ Verified & Tested Information

Have you ever wondered how to jam a car door lock? Here’s a quick and easy guide on how to do it.


Jamming a car door lock can be a tricky task, but it can be done if you have the right tools and knowledge. Before you start attempting to jam the car door lock, it is important to make sure you are fully prepared. This preparation will include gathering the necessary tools, selecting the correct jamming technique, and familiarizing yourself with the steps you need to take to successfully jam the lock. Let’s get started.

Gather the necessary tools

In order to successfully complete this task, it is important to gather the right tools and materials before attempting to jam a car door lock. For the most secure and stable jam, the following items are recommended: a vice grip with a large jaw, super glue that is suited to metal surfaces, silicone oil, a plastic card such as a gift card or credit card and needle-nose pliers.

The vice grip should be firmly held onto the car door lock cylinder. Ensure that when it is locked into place, there is enough play in the jaws of the vice grip to allow for fast and smooth turning of the cylinder once it has been jammed. The super glue should be applied sparingly around the outside edge of the car door lock cylinder as well as in any gaps or spaces between parts of the cylinder. This will help hold everything together once all components have been connected appropriately.

Once glue has dried off completely, add some silicone oil onto all inner parts of your car door lock cylinder where there may be potential points of contact and friction that could prevent smooth operation or cause extra strain on certain components due to extra force or manipulation needed during installation or regular use after installation. Furthermore, take your plastic card and manually slide it through all surrounding gaps around your car door lock cylinder in order to test if everything has been properly connected and sealed into place (the supplied plastic card should easily go through any gap). If not, then you will need to apply more glue until each gap is sealed correctly for proper operation of your newly installed car door lock system. Finally use needle-nose pliers to ensure that all fitting screws are properly secured with no loosened screws hanging around otherwise this will also lead to instability in your newly installed car door lock system.

Make sure you are in a safe location

When jamming a car door lock, the first order of business should always be safety. Find a dimly lit, secluded area without foot traffic or other potential sources of danger. Always be aware of your surroundings, and be sure to keep your wits about you in case you run into trouble. Once you find a safe location, park your car in an area with good lighting and take out any valuables that may be lying around in the car (such as a wallet or credit cards). Don’t forget to check if there are any hidden items that can alert someone to your identity.

Once you have taken all necessary precautions, it’s time to get started on the actual jamming process. The first step is to insert an item into the door lock itself, such as a credit card or paperclip. Apply even and steady pressure until the lock pops open. Many people find that using two items together – such as two pieces of plastic – works best for this process. Be warned: it can take some practice before you get consistent results! If at any point during the jamming process you become uncomfortable or uncertain about what you are doing, it’s best to abandon the attempt and seek professional assistance from a licensed locksmith instead.

Jamming the Lock

Jamming a car door lock can be a handy way to quickly get back into your locked car without paying for a costly locksmith service. While it may not be the most secure option, it is a reliable method that can get you back in with minimal effort and cost. In this article, we’ll go over how to jam a car door lock and what materials you might need for the job.

Insert the metal rod into the lock

Insert the metal rod into the Types of Door lock keyway of the car. Make sure it is firmly seated in the lock, reaching down as far into the keyway as possible. If your tool does not fit easily inside the locks, you may need to use a lubricant to help it slide in easier and also protect it from becoming stuck when jamming the Types of Door.

Apply pressure to the rod

Once you have located the rod, it will be time to apply pressure. Doing so will take some pressure and leverage. With your hands, firmly but carefully grip the part of the rod that is focusing on pushing up against the cylinder lock. If you feel any resistance from the steering wheel, release the pressure and slightly adjust your grip or adjust the angle at which you are applying the pressure before continuing. The goal is to put continuous, firm pressure on the rod while pushing up against the cylinder lock with it until you hear a click or feel a slight release of tension in the steering wheel. That will indicate that your effort was successful and that you were able to jam open the car door lock.

Twist the rod in a circular motion

Once you’ve inserted the rod and found the right position, give it a gentle twist in a circular motion. This is to make sure that all of the components in your car door lock are moved out of place and become locked up. You want to apply consistent pressure so that you don’t cause any damage to the lock itself. Once done, you should hear a clicking sound which confirms that the lock is jammed. If necessary, you can try pushing and pulling on the rod as well as twisting, but be careful not to apply too much pressure or force. Depending on your individual car model, it may take some trial and error before you find effective ways of jamming your car door lock so be patient and don’t give up!

Removing the Lock

Jamming a car door lock is a common method for gaining access to a locked vehicle. As the name implies, the goal of this technique is to jam the locking mechanism and prevent it from properly working. In this section, we’ll look at how to remove the car door lock from its housing and disable it.

Insert the flathead screwdriver into the lock

For this method to work, you will need a regular flathead screwdriver and something long and thin that can be used as a probing tool such as a paperclip or small length of metal. Start by pushing the flathead into the lock hole until it makes contact with the back of the lock mechanism. Move the flathead around until you locate the unlocking lever inside the door; if you are too forceful, you can damage this lever so use caution.

Once the flathead is in position, insert your probing tool into the lock hole and attempt to rotate it until it pushes up on the unlocking lever. Keep trying different angles with your probing tool until you feel it engage with the unlock lever; then push upward on both tools at once to unlock the car door. If your efforts are unsuccessful, move onto another method to open your locked car door.

Push the screwdriver to the side

To jam a car door lock, start by obtaining a flat-head screwdriver. Point the end of the screwdriver towards the lock and use it to wedge between the window and the frame of the car. Push the screwdriver slowly to one side until you feel it slide into place against one of the sides of the lock. Then, push it further until you feel it come into contact with the bolt inside. Keep pressure in that direction for about thirty seconds and then slowly pull it out. If done correctly, this should force open your car door lock due to torque created by pressure on two sides of the bolt mechanism.

Pry the lock off

Prying the lock off is a relatively simple method for accessing your vehicle if you have no keys or other tools available. You will need a strong metal instrument such as as a screwdriver, crowbar, or flat-headed punch to do this.

First, use the tool of your choice to lever the lock up and away from the window frame. Be careful not to scratch your car’s paintjob in the process. Once it pops out of the window frame, you should have access to pull out the lock cylinder completely. As you can see in the photos below, different locks require different approaches.

To dislodge a Eurocylinder lock (as commonly found in front doors), insert one end of your steel tool into the small hole near the face of your door’s cylinder and press firmly against it with a hammer until it pops off its frame. Eurocylinders are most commonly found on European cars, including Volkswagen and BMW models.

For column locks – those cylindrical locks located on either side of your steering wheel – insert one end of your tool into one of its cuts and carefully lever it up while running along its circumference until it comes off its frame completely. Column locks are common on older vehicles and van models such as Fiat Ducato.

Finishing Up

After successfully jamming the car door lock and gaining access to your vehicle, the final step is to clean up any debris that may have spilled out and to reset the locks so that they are secure again. In this section, we will go through the process of resetting the locks and cleaning up any mess that may have been created during the jamming process.

Put the lock back in place

Once you’ve successfully inserted the appropriate tool into the car door lock, move it around to make sure that you’ve hit all of the right areas. To finish up, you’ll need to put the lock back in place. This may take more effort due to its extra-tight fitting. Make sure that it is properly closed and secure before using your vehicle. Check that the lock cylinder can turn freely and indicates whether or not it’s in locked position. If successful, your door should be unlocked and you can now get into your car without a problem!

Test the lock to make sure it works

Before you finish jammimg a car door lock, it is important to test the lock to make sure it works properly. To do this, insert the key into the keyhole and turn it twice in each direction. If it does not turn smoothly or feels stuck, you will want to use a thin piece of wire or tweezers to adjust the alignment of the pins.

Once you have adjusted the pins and inserted the key again with no problems, you can move on to closing up the surrounding parts of your door. Be sure all screws from removed parts are accounted for and re-tighten them as necessary. After verifying that all components are correctly in place and firmly tightened, test the lock one final time by opening and closing it with both your original key and any duplicates that were made during this process.

Lock the car door

Now that you’ve identified the lock and jammed it with a tool, you’re ready to lock the car door. This step is straightforward and easy to do.

First, insert your tool into the keyhole of the car door lock. Once it’s fully seated, turn it clockwise until the lock clicks closed. At this point, the car door should be securely closed and locked. You may need to slightly wiggle or adjust your tool in order to get it exactly in place; make sure that you listen carefully for those tell-tale clicking sounds!

Once the door is locked, pull out the tool slowly but firmly. Doing so will ensure that no pieces of your jamming apparatus remain lodged within the interior of the lock cylinder. To finish up, simply dispose of your tool as desired and enjoy a newfound sense of security from knowing that you have successfully jammed a car door lock.

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