Illinois Industrial Tool Slim Jim Lockout Tool: A $2.99 Car Lockout Gadget Put to the Test

Introduction

Locking your keys in the car is one of those problems you never think about until it happens. The slim jim style lockout tool has been around for decades, and the version sold under the Illinois Industrial Tool (IIT) name is about as budget as they come. At $2.99, it costs less than a cup of coffee, which raises an obvious question: can a tool this cheap actually get you back into your car?

We picked one up from a hardware store endcap and put it to work on a real vehicle. The results were educational, if not entirely successful.

What You Get

This is a stainless steel lockout tool, commonly known as a slim jim (though slim jim is technically a brand name). It measures 22 inches long and 1 and a quarter inches wide, and the metal is very thin and flexible by design. The idea is that you slide it down inside the door along the window area, hopefully catch one of the internal linkages, and manipulate the lock mechanism to unlock the door. Importantly, it does not bypass the lock; it uses the lock mechanism itself to unlock the vehicle.

The packaging claims it helps open most doors on cars, pickups, trucks, minivans, and SUVs. These tools typically sell for $15 to $30 depending on quality and included accessories, so a $2.99 price point puts this firmly in the impulse-buy category. It was stocked alongside air pressure gauges, valve cores and stems, and tire sealant, which tells you exactly what kind of product this is.

Is It Legal?

Generally, yes. Owning a lockout tool is legal unless you use it for something illegal, which is why stores sell them openly on endcap racks. There is no legal barrier to keeping one in your garage.

One older concern was that fiddling with the internal locking mechanism could set off the side airbags. This appears to be closer to urban legend than documented reality; an episode of MythBusters famously tried to trigger this failure and never managed to. No widely reported incidents support the claim.

Testing It on a Real Vehicle

With no high hopes, we headed outside and gave it a real try. The technique, per the various how-to guides, is straightforward in theory: ease the tool down between the window and the door, fish for the unlock lever, and lift.

In practice, after about 15 minutes, the tool was solidly wedged inside the door, hooked on something inside, and slightly bent. The window trim tore in the process. The unlock lever could occasionally be reached and moved a little, but never enough to actually unlock the door. One detail became obvious quickly: the tool is sharp, which explains why experienced users wrap the working area generously with tape before ever inserting it.

How It Went

The honest verdict: this did not work for us. The bar ended up totally stuck, the trim got damaged, and the only way to free the tool was to unlock the vehicle and take the door apart from the inside. That said, it is easy to imagine that some people do get good at this with practice, and the technique itself is a legitimate one used by professionals with better tools and more experience.

The realistic takeaway is that a slim jim rewards technique and patience, and punishes impatience with bent tools and torn trim. Newer vehicles also raise questions about whether this style of tool works effectively at all, or whether the risk of damage outweighs the benefit.

Buying Advice

If you buy one, do not expect magic at this price. Store it in your garage or outside the vehicle rather than in the cabin, for the obvious reason that a lockout tool locked inside the car is useless. Wrap the metal with tape before use, go slowly, and accept that newer vehicles with more complex door internals may simply not cooperate.

For $2.99 it is a surprisingly low-risk experiment, but anyone who regularly deals with lockouts would be better served by a fuller lockout kit or professional roadside assistance. The appeal here is the price, not the performance.

Conclusion

The Illinois Industrial Tool slim jim is exactly what it looks like: a cheap, thin piece of stainless steel that occasionally works and often does not. Our attempt ended with a bent tool, torn trim, and a disassembled door panel. It is legal, safe from an airbag standpoint as far as anyone can demonstrate, and cheap enough to be worth a try if your expectations are low. Just keep the tape handy, keep it out of the locked car, and be prepared for the possibility that your keys stay on the wrong side of the glass.