What is Sidewinder / Laser Cut Key? | Okey DoKey Locksmith
A sidewinder key, also known as a laser-cut key or high-security car key, is an automotive key with a distinctive winding track cut into the surface of the blade. Unlike a traditional edge-cut key, where the cuts are made along the outside edges, a sidewinder key typically has smooth outer edges with the cutting pattern running along the face of the metal blade.
The name "sidewinder" comes from the curved path of the cut, which can appear to wind from side to side along the key blade. The design requires specialized equipment to duplicate accurately and is commonly found on newer vehicles.
It is important to separate the sidewinder blade design from the electronics inside the key. "Sidewinder" describes how the metal blade is cut. Many modern sidewinder keys also contain a transponder chip, remote-control electronics, or may be incorporated into a smart-key system.
Contents
- How Does a Sidewinder Key Work?
- Sidewinder vs. Standard Car Keys
- Sidewinder Keys and Transponders
- How Are Sidewinder Keys Cut?
- Can a Sidewinder Key Be Duplicated?
- Where Can I Buy Sidewinder Keys?
- What If All Sidewinder Keys Are Lost?
- Problems With Sidewinder Keys
- Sidewinder Key Maintenance
- Should I Have a Spare?
How Does a Sidewinder Key Work?
A sidewinder key operates the mechanical portion of a vehicle lock in much the same way as another automotive key: its cutting pattern must match the lock. The major difference is the location and shape of that pattern.
Instead of a series of peaks and valleys cut into the edge of the blade, a laser-cut car key has a milled track running along the blade's surface. The track may change depth and direction as it travels along the key.
This distinctive design is why sidewinder keys cannot normally be duplicated using the basic key-cutting machines intended for conventional edge-cut keys.
Sidewinder vs. Standard Car Keys
A traditional automotive key generally has visible cuts along one or both outside edges of the blade. These cuts create the familiar jagged appearance associated with conventional keys.
A sidewinder key normally has relatively smooth outer edges. Its high-security key pattern is milled into the face of the blade instead.
The terms sidewinder, laser-cut and high-security are frequently used when referring to this type of automotive blade. Despite the term "laser-cut," the important distinction for the vehicle owner is the specialized blade design and the equipment required to reproduce it.
Sidewinder Keys and Transponder Chips
A sidewinder key and a transponder key describe two different parts of a modern automotive key.
Sidewinder refers to the physical cutting style of the metal blade. Transponder refers to the electronic chip used by the vehicle's immobilizer system.
Many newer sidewinder keys contain transponder chips. In these cases, cutting the blade correctly allows the key to mechanically fit and turn the appropriate lock, but the transponder must also be recognized by the vehicle before the key can start the engine.
A sidewinder blade can also be part of a remote-head key, flip key, or emergency insert key contained inside a proximity remote.
How Are Sidewinder Keys Cut?
Sidewinder keys require a machine capable of cutting the track into the face of the blade. This is different from the inexpensive duplicating machines commonly used for standard house keys and basic automotive keys.
A locksmith or key-cutting service may produce the blade by copying an existing key or by cutting a new key from the vehicle's original key information.
When an existing key is heavily worn, producing a new key from the original specifications may be preferable to simply reproducing the wear present on the old blade.
Can a Sidewinder Key Be Duplicated?
Yes. A sidewinder key can be duplicated when the correct blank and suitable sidewinder key machine are available. If you still have a working key, making a duplicate before it is lost can make replacement considerably easier.
The blade and electronics should be considered separately. A duplicate may need both precision cutting and transponder programming depending on the vehicle.
You can also learn about different options for ordering a blade through our cut keys online guide.
Where Can I Buy Sidewinder Keys?
Sidewinder keys may not be available at every hardware store because cutting them requires specialized equipment. Replacement blanks, remote-head keys, and compatible electronic keys can instead be obtained from automotive locksmith suppliers, online key sellers, locksmiths, or a vehicle dealership.
If you purchase a key online, verify the year, make, model, blade style, and applicable electronic specifications before ordering. Two keys that look similar externally are not necessarily interchangeable.
Our buy keys online guide provides additional information about finding replacement keys and remotes.
What If All Sidewinder Keys Are Lost?
An all keys lost situation does not necessarily require an existing blade to copy. A replacement key may be originated from vehicle-specific key information when it is available, rather than duplicating another physical key.
The VIN can help identify the vehicle, although the exact process for obtaining the original key information varies. Proof of ownership may be required before vehicle-specific key information or a replacement key can be supplied.
If the vehicle's locks or ignition have previously been replaced or rekeyed, the original key information may no longer correspond to the components currently installed in the vehicle.
Problems With Sidewinder Keys
After prolonged use, a sidewinder key may become worn or damaged. A worn blade can become increasingly difficult to insert or turn, while damage to the lock itself can produce similar symptoms.
Dirt, debris, wear, or problems inside the vehicle lock can also interfere with smooth operation. If both the original and spare key have difficulty operating the same lock, the problem may be with the lock rather than the key.
If only one key is causing trouble, inspect it for visible wear, bending, or damage. Avoid forcing a key that will not turn because additional force can damage the blade or lock components.
Sidewinder Key Maintenance
Keep the blade reasonably clean and avoid using the key as a tool for opening packages or prying objects. Bending or damaging the precisely cut blade can interfere with its operation.
Vehicle locks should also be kept clean and operating smoothly. If lubrication is required, use a product appropriate for the lock and follow the applicable product or vehicle recommendations rather than applying excessive lubricant.
For keys containing remote electronics, also protect the housing from water, heavy impact, and other damage.
Should I Have a Spare Sidewinder Key?
Having a spare car key can save considerable time if your primary key becomes lost or damaged. Making a duplicate while a working key is still available may also simplify both cutting and programming.
A spare is especially useful with modern keys that combine a high-security blade, transponder chip, and remote functions. Losing the only working key can turn a straightforward duplicate into a complete car key replacement.
Keeping the spare in a secure location outside the vehicle also gives you another option if you accidentally lock your keys in the car.
