Vespa GTS 250 and GTS 300 Key Replacement

Quick answerA keyed Vespa GTS has one master key and one or more service keys, and the master is needed to store a new key the standard way. From the 2023 redesign the GTS 300 uses the Piaggio Keyless remote with a single TAG instead. If you have lost a key, tell us which keys or remotes you still hold, because that decides how the job is done.

Vespa GTS 250 and GTS 300 key quick facts

The GTS 250 owner's manual calls the master the red-handgrip key; the GTS 300 HPE manual calls it the key with the brown grip.
The GTS 250 and GTS Super 300 manuals allow up to seven stored keys. The GTS 300 HPE manual allows three.
The GTS 300 HPE manual describes a separate remote for seat opening and the Bike Finder, with room for four remotes in memory.
The keyless GTS 300 comes with one TAG with a built-in transponder, used to register remotes and to start the scooter if the remote battery is flat.
Piaggio says losing the keyless TAG means replacing all the components of the Piaggio Keyless system.
The frame number is under the seat, behind the removable helmet compartment.

Vespa GTS 250 and GTS 300 key types by year

Years	Models	Key type	Chip	Notes
From around 2005	GTS 250, GTS 300 Super (before the HPE engine)	master key plus transponder service key	yes	Red-handgrip master in the GTS 250 manual. Up to seven keys. A code card carries the code imprinted on the two keys.
Later pre-HPE GTS 300	GTS 300 (Euro 4 owner's manual)	brown master key plus blue key	yes	The manual switches to a brown-grip master and a blue key and lowers the limit to three keys.
2019-2022	GTS 300 HPE	brown master key plus blue keys	yes	Three keys at most. The seat is released electrically, and the SuperTech manual adds a remote with Bike Finder.
2023-present	GTS 300 with Piaggio Keyless	keyless remote plus TAG	yes	Ignition knob instead of a key slot. The remote unlocks the knob, opens the seat and runs the Bike Finder.

The GTS key by generation

The early GTS 250 and the first GTS 300 Super follow the classic Piaggio pattern. You get a master key, supplied as a single copy, and a service key for starting the engine. The GTS 250 manual describes the master as the red-handgrip key and says up to seven keys can be stored. Later GTS 300 manuals describe a brown-grip master with blue keys and cut the limit to three. In every version, all keys are registered together and any key that is not presented is erased.

The 2023 redesign dropped the key. You press and release the ignition knob, the scooter authenticates the remote within about a metre and a half, a Welcome message appears, and you have 20 seconds to turn the knob to ON. The quickest check is the scooter itself: a knob with no key slot means Piaggio Keyless.

Need a key for your Vespa GTS 250?

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What the key or remote operates

On the HPE-era GTS the seat is not opened with a separate key lock. It is released electrically by a button, and the ignition switch position decides whether the seat and the front case can be opened. With the switch in LOCK the steering is locked and both stay shut. On the keyless GTS, a handlebar button opens the seat once the remote has been recognized, and the remote itself can open the seat from a distance.

That design matters when a key is lost. With no working key or remote you may not be able to reach the under-seat storage where spare keys, the TAG or documents are often kept. The owner's manual describes an emergency way to reach the seat release, and a locksmith visit can get the seat open without damage if you cannot.

Lost master, lost TAG or all keys lost

Piaggio's warning for keyed scooters is that losing the master prevents later repairs to the immobilizer system and the engine control unit. In practice the scooter keeps running on the blue key, but the standard procedure for adding a key is no longer available. A new master can often be made for the scooter's existing control unit, which is the usual fix. It is much easier to arrange while one key still starts the scooter.

The keyless GTS is less forgiving. Additional remotes are registered at a service centre with the TAG and every remote you own, and remotes left out are erased. If the TAG is lost, the manual says all the components of the Piaggio Keyless system must be replaced. The replacement remote for the 2023 GTS is sold as a 315 MHz, dealer-programmed part, so a lost remote on these scooters is normally a dealer job. Keep the TAG at home.

Keyless warning signs worth knowing

Immobilizer light flashing while riding: the scooter has stopped detecting the remote. It keeps running, but check you still have the remote.
Immobilizer light and turn signals flashing for 20 seconds after switching off: the manual says the remote is lost and the ignition can be turned on only one more time until it is found.
Five flashes every 30 seconds with the ignition on: the remote battery needs replacing soon.
Remote LED red instead of green when you press a button: the remote is deactivated and has to be activated again before it will authenticate.

What a visit involves

For a keyed GTS we confirm ownership with photo ID and the registration or title, identify the generation, cut the blade and program the transponder keys so that every key you want to keep is stored together. Bring the master if you have it, any blue key, and the code card. If the scooter was bought used with only one key, say so when you call so the right approach and blanks come with us.

Where to find the key code

Earlier GTS scooters were delivered with a code card bearing the same code imprinted on the two keys, and the manual says to keep it with the master key away from the scooter. Check the owner's manual pouch and the dealer folder. Without it, the blade is made from an existing key or from the lock.

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)

Vespa GTS 250 and GTS 300 key FAQ

How many keys can my GTS store?

The GTS 250 and GTS Super 300 manuals say up to seven. The GTS 300 HPE manual says three. Either way they are all stored in one session, and any key not presented is erased.

Can the TAG start my keyless GTS?

Yes. The manual describes passive recognition, where the TAG or a remote with a flat battery is held against the marked area above the front case. It is meant as a backup, so do not carry the TAG on your key ring.

My GTS immobilizer light is not flashing after a week parked. Is that a fault?

No. On keyed models the LED switches off after 48 hours to save the battery, and on the keyless GTS the signalling LED turns off after about nine days.

I only have the brown key. Can I just ride with it?

It will start the scooter, but Piaggio recommends using it only in exceptional circumstances because there is only one. Have a blue key made and put the brown key away.

The immobilizer system on this bike

Piaggio Immobilizer: Vespa Master Keys and Lost KeysThe Piaggio immobilizer on Vespa and Piaggio scooters uses one master key, with a red or brown grip, and blue or black keys for daily riding.

More Vespa and Piaggio models

Services for this bike

Lost Motorcycle Master Key, Code Card or Key Tag: What ChangesA master key, code card or master PIN is the item the maker uses to authorize new keys for your bike.
Motorcycle Key Fob and Keyless Ignition ProblemsMost keyless motorcycle problems come down to a weak fob battery, a fob the bike is not reading, a damaged fob or a lost one.
Keyless Motorcycle Not Detecting the Key: Causes and BackupsOwner's manuals give a short list of reasons a keyless bike fails to detect its fob: a weak fob battery, the fob carried against a phone, laptop or metal object, strong radio interference nearby, the fob switched off or out of range, and a low battery on the bike itself.
Lost Keys and Lost Title or Registration in CaliforniaIf the registration and title are gone along with the keys, replace the paperwork first.

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Sources

Page last updated November 14, 2026.