How To: Use a Tennis Ball to Unlock Car Doors Without a Key

Use a Tennis Ball to Unlock Car Doors Without a Key

The Next Three Days is the new film by Paul Haggis (Crash), which stars Russell Crowe and Elizabeth Banks. Laura (Banks) is accused of murder and sent to prison, and her husband John (Crowe) struggles to prove her innocence while taking care of their only child. But the system does not work for John, and he's forced to take extreme actions and attempt a prison break.

In the movie, John is an ordinary man, a professor at a school, who learns about the workings of the prison system, the city's response time with an escaped convict on the loose, and the how-to of breaking someone out of jail. One of his necessary tasks involves unlocking doors, and after watching a few how-to videos on lock picking, decided to try out the bump key method for prison doors and the tennis ball method for vehicles. And in this how-to video, you'll learn just that… how to break into a car using a tennis ball with a scorched out hole.

The process is simple. Burn a hole in the tennis ball. Then, take the tennis ball to any car door and place the burnt hole over the keyhole. Next, press (or smash) as hard as you can, and the air pressure from inside the ball will travel through the keyhole and forces the locking mechanism inside the car door to unlock. This is popular method with car thieves… but really… this is great for all of you who have problems holding onto your car keys. If you ever leave your keys in the ignition, this is the way to go. Forget AAA or pricy locksmiths!

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This has been proven to be a scam, look it up!

Who in there right mind would ever think that anyone in there right mind would ever believe this would work. I've wasted brain cells watching this...

Try it on a Mark 1 Golf and let me know...

forgot my keys better use the tennis ball i always carry for no reason

Also works using golf balls

I call BULL5HIT!

It's a waste of a good tennis ball!??

Even works with an inflated balloon. Hold the neck tightly over the keyhole and pull the balloon neck firmly from either side. The high pressure sustained blast of air (and the resonant sound of squeaky breaking wind) will open any pre-1940 unlocked car door. Honest. I saw it done in that film ... Must be true.

i work in a body shop and we have a tool that does just that can even start the car with air pressure I never tried a tennis ball though but myth busters have been proven wrong on history channel several times by actual scientist

Im a pro choocher and this is a good trick but why use a tennis ball? All you have to do is save a couple of your farts up place your ring piece around key hole (caution on cold winter nights) and let her rip. works everytime. oh yeah and also if you need some gas just whip it out and pee in the tank females may want to use a funnel

idiots!!!!...... come on use your noodle

Works great, I let myself into the White House using this method.

*There is another "fool" proof way to do this, get a rock about the same size as the tennis ball even a brick or hammer will work every time. Years ago I saw a video that people were using a spark plug, now that just seems kinda difficult to me cuz if I'm locked outta my car where am I gonna get a spark plug? A good ole rock is usually always available, have fun and let us know if you tried this way and how it worked.


I use a bowling ball or medicine ball. Wrecking ball might work well also.

A full propane tank wouldnt work for me..doubt a bowling ball or a large tock will shatter a side need a punch tool..and thats just yo start..I like the tennis ball...but it appears everyone has an opjnion...yet, never actually tried it?!!

Try this, drop your drawers bend over put your hole in line with the key hole , Then rip a fat rotten fart, and bada boom bada bing the lock pop open... The pressure from your ass will force the lock to pop, thus unlocking it..... ( try it out and tell me how it went.)

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