Ducati Streetfighter V4 Key Replacement

Quick answerThe Streetfighter V4 starts with an ordinary-looking key that carries an immobilizer chip, and the bike is delivered with exactly two of them. Ducati's dealer bulletin puts the 2020 model on the I2K-2 system, where the instrument panel holds the key codes and there is no Code Card. Lose one key and the fix is routine; lose both and the factory answer is a parts order, so it pays to act while one key still works.

Ducati Streetfighter V4 key quick facts

Ducati's North American immobilizer bulletin lists the 2020 Streetfighter V4 under the I2K-2 system, in the group whose key transponder cannot be removed from the key.
The Streetfighter V4 owner's manual says the motorcycle comes with 2 keys and that both contain the immobilizer system code.
The same key starts the engine, opens the fuel tank plug and opens the seat lock.
The I2K-2 dash stores two keys, no more and no fewer, so a replacement key is programmed together with the one you kept.
The manual has a section on restoring operation with a PIN code, set from the Setting menu on the dash.

Ducati Streetfighter V4 key types by year

Years	Models	Key type	Chip	Notes
2020	Streetfighter V4, Streetfighter V4 S	two transponder keys (I2K-2)	yes	Listed by Ducati under I2K-2 with a non-removable transponder. Key codes live in the instrument panel control unit.
2023-2024	Streetfighter V4, Streetfighter V4 S	two transponder keys	yes	The owner's manual describes two immobilizer keys, an antenna built into the ignition switch and a four-digit PIN code. For other years, give us the VIN and we confirm.

How the Streetfighter V4 key system works

Each key has an electronic device in its grip. When you turn the ignition on, an antenna built into the ignition switch reads it, and the manual explains that the signal acts as a password that changes with every start. The bulletin adds the missing piece: on I2K-2 bikes the instrument panel is the unit that remembers the keys and then tells the engine computer over the CAN line that the start is allowed.

Two details follow from that. The dash is paired to the keys, so swapping in a used dash from another bike does not carry your keys with it. And because the transponder on this model is sealed into the key, a cracked key cannot donate its chip to a new shell the way some Monster 821 or SuperSport keys can.

Need a key for your Streetfighter V4?

Call or text with the year and where the bike is parked.

Call (805) 429-8452 Text your year, make and model

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Locks the key works

Ducati kept the lock count low on this bike.

Ignition switch, which also locks the steering
Fuel tank filler plug
Seat lock, which releases the passenger seat so the seats can be removed

One key lost

Ducati's manual tells owners who need a spare to bring every key they still have, because all keys, new and old, are programmed in the same session and any key that is missing is erased. That is good news if a key was stolen: it will no longer start the bike afterward. The bulletin describes the dealer process as ordering a key, copying the cut from your remaining key, resetting the stored keys with the diagnostic tool and memorizing both again.

Both keys lost

This is the expensive scenario on paper. For I2K-2 bikes with no key at all, Ducati's bulletin calls for a complete switch kit: keys, lock unit and a new instrument panel, followed by key memorization. A stored PIN does not rescue you here, since the PIN only helps when a key can still turn the switch.

Before agreeing to that, call us with the year and VIN. On some Ducati models, specialist equipment can register new keys to the dash that is already on the bike, and we will tell you plainly whether your Streetfighter is one we can handle on site. Have photo ID and the registration or title in your name ready, and mention a weak battery, because programming needs steady voltage. A superbike-based naked with no key is awkward to load on a truck, so a visit where it is parked saves real trouble.

Where to find the key code

There is no Code Card on this bike. The recovery code is a four-digit PIN that you choose and store in the dash yourself, and it only exists if you set it. Write it down at home, not on the bike. If you own the smaller Streetfighter V2, tell us the year when you call and we will confirm its key setup separately.

What to have ready

Have this ready when you call or text

Year, make and model of the bike
Where the bike is parked
Whether you have any working key, a broken key or a key code
Photo ID and registration or title (we verify ownership before making a key)

Ducati Streetfighter V4 key FAQ

Can I add a third key to my Streetfighter V4?

No. Ducati's bulletin says the I2K-2 system memorizes two keys and cannot be programmed with one or with more than two. A new key takes the place of the lost one.

My key is not recognized. Will the PIN get me home?

Only if you stored a PIN beforehand. With a PIN on file, the dash asks for it at key-on and lets the engine start. Ducati notes that this does not work if the key is mechanically damaged and cannot turn the switch.

Does the Streetfighter V4 use the Hands Free fob like a Diavel?

No. The owner's manual describes two conventional keys with a chip inside, used in an ignition switch. The Hands Free system belongs to other Ducati families.

I bought a used Streetfighter V4 with one key. Is that a problem?

It runs fine on one key, but you have no backup, and losing the last key is far more costly than adding a second now. Ask the seller whether a PIN was stored, too.

The immobilizer system on this bike

Ducati Immobilizer: Red Key, Code Card, PIN and Lost KeysEvery keyed Ducati immobilizer reads a transponder in the key and only lets the engine start when the code matches one stored on the bike.

More Ducati models

Services for this bike

When to Get a Spare Motorcycle Key, and Why NowGet a spare motorcycle key as soon as you are down to one working key.
How Many Keys Should Come With a Used Motorcycle?Most motorcycles are delivered with two keys or fobs, and many also come with a third item that matters more than either: a master or programming key, a code card, a key number tag or a security PIN.
Motorcycle Key Turns but the Bike Won't Start: Key or Not?Watch the immobilizer or key light in the first seconds after you switch on.
Lost Keys and Lost Title or Registration in CaliforniaIf the registration and title are gone along with the keys, replace the paperwork first.

Where we come to you

Sources

Page last updated November 14, 2026.