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By Sam P., R&D Technician at Scorpion Automotive. Reviewed by James M., Technical Director. Published 10 September 2026. Updated 19 October 2026.
Quick answer: yes, ambulances, police cars and other emergency vehicles can have a Ghost immobiliser fitted, as long as the base vehicle is compatible with Ghost 3 or with the Scorpion X-Series. We check the make, model and year of every vehicle before we quote, and we can fit across a fleet.
These vehicles are often left running or unattended for short periods at a scene, and many are built on the same vans and cars that thieves already target with key cloning and relay attacks. An immobiliser on the vehicle’s own network means the vehicle will not drive away without the disarm step, even if someone has a working key.
| Option | Works with | Good for |
|---|---|---|
| Autowatch Ghost 3 | Newer vehicles on the CAN-FD network, roughly 2024 onwards | Recent ambulances and response cars |
| Autowatch Ghost-II | Most existing vehicles on a single CAN network | Older fleet vehicles where it suits the base vehicle |
| Scorpion X-Series | Vehicles on CAN and LIN networks | Base vehicles that are not a match for Ghost |
The X-Series is made by Scorpion Automotive, part of the same group as Ghost Installations. Where a fleet or its insurer wants Thatcham cover, it can be paired with a Thatcham S5 or S7 tracker, so the vehicle is both immobilised and traceable.
Speed matters on a shout, so the disarm method has to be quick and simple. A Ghost uses a short sequence on buttons the vehicle already has, such as the steering wheel or window switches. Autowatch also lists key tag and smartphone disarming for Ghost 3, which suits vehicles shared by several crews. When a vehicle goes to the workshop, service mode lets the technician drive it without being given the sequence.
The same approach works for other specialist vehicles. Recovery and repossession operators should read our page on Ghost for recovery and repossession vehicles.
To discuss a fleet, call 0800 246 1482 or use our contact page.
Yes, if the base vehicle is compatible with Ghost 3 or with the Scorpion X-Series. We check each vehicle type before quoting.
The disarm step is a short sequence on existing buttons. Ghost 3 can also use a key tag or a smartphone, which some fleets find quicker for shared vehicles.
The vehicle goes into service mode before it is handed over, so the technician can drive it without the sequence.
Yes. It works on CAN and LIN vehicle networks, and it can be paired with a Thatcham S5 or S7 tracker when a fleet or its insurer asks for Thatcham cover.
Sources: Autowatch Ghost-II product information and Ghost-III help guide (autowatch.co.uk), checked 19 October 2026. Scorpion Automotive X-Series product information.
