How to Unlock Car Door With Tennis Ball

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Title: Unlocking Car Doors with Tennis Balls: An Unconventional Method


Locking your car keys inside your car can be a frustrating experience. While calling a locksmith is the most common solution, there are alternative methods that may help you unlock your car door, such as the controversial tennis ball technique. This article aims to explore the infamous method of unlocking car doors using a tennis ball and provide answers to commonly asked questions regarding its efficacy and safety.

Unlocking Car Doors with a Tennis Ball:

The tennis ball method involves creating an airtight seal between the car door lock and the tennis ball. By squeezing the ball, it theoretically creates enough air pressure to push the lock mechanism, resulting in an unlocked door. Here’s a step-by-step guide to attempting this technique:

1. Gather the necessary materials: a tennis ball, a sharp knife, and a keychain or cord.
2. Make a small hole in the tennis ball: Using the knife, carefully cut a small hole in the ball. Ensure that the hole is just large enough to fit over the car’s lock.
3. Position the tennis ball over the lock: Place the hole on the ball directly over the car’s door lock.
4. Apply pressure: Squeeze the tennis ball firmly, creating a tight seal around the lock.
5. Turn the key: Simultaneously turn the key while applying pressure to the ball. The idea is that the air pressure created inside the ball will push the lock mechanism, unlocking the door.

Frequently Asked Questions:

1. Is this method safe?
The tennis ball method has been widely debated, with conflicting opinions. Some believe it works, while others dismiss it as a myth. It is important to note that attempting this method may damage the car’s paint or lock mechanism.

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2. Does the tennis ball technique work on all car models?
The effectiveness of this method varies depending on the car’s locking mechanism. It is more likely to work on older models with simpler lock designs.

3. Can I use any ball instead of a tennis ball?
A tennis ball is often recommended because of its size and elasticity. However, some people claim that other small, hollow balls can also be used.

4. Can I unlock a car with a remote-controlled central locking system using this method?
No, this technique is not applicable to cars with remote-controlled central locking systems. It is only relevant for manually operated locks.

5. How long does it take to unlock a car using this method?
The time required to unlock a car door with a tennis ball varies depending on the individual’s skills and the lock’s complexity. It may take several attempts or just a few seconds.

6. Are there any risks involved in attempting this method?
Attempting to unlock a car door with a tennis ball could lead to damage, such as scratches or dents. Additionally, it is illegal to unlock someone else’s car without permission.

7. What are the alternatives to the tennis ball method?
Contacting a professional locksmith or utilizing roadside assistance services are the safest and most reliable alternatives.

8. Can the tennis ball method be used as a temporary solution if I’ve locked my keys inside the car?
While some claim the method is effective, it is not a guaranteed solution. It is best to seek help from professionals to avoid potential damage.

9. Are there any instructional videos available for this method?
Yes, several videos demonstrating the tennis ball method can be found online. However, their authenticity and effectiveness are debatable.

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10. Can the tennis ball technique cause any damage to the car’s lock?
Excessive force or incorrect application of the method can potentially damage the lock mechanism or the car’s paintwork.

11. Can I use this method on a car with automatic locks?
No, this technique is typically ineffective on cars with automatic locks.

12. Is it legal to use the tennis ball method?
The legality of this method varies depending on your location. In some jurisdictions, attempting to unlock a car door without proper authorization is considered a criminal offense.


The tennis ball method of unlocking car doors is a controversial technique that has garnered attention over the years. While some individuals claim success using this method, its efficacy remains questionable. It is important to exercise caution and consider alternative options, such as contacting a locksmith or roadside assistance, to avoid any potential damage to your car.