If you have bought a car with a Ghost Immobiliser fitted, take control of the ghost immobiliser system straight away. Ask the seller for the current disarm sequence, emergency code card, installer details and paperwork. Confirm that it works, change the PIN to one only you know, and learn how to use Service/Valet Mode. Understanding the ghost immobiliser is crucial for securing your vehicle.
Do not assume the ghost immobiliser has been removed because the seller did not mention it. Do not try to disconnect it yourself either. It is deliberately hidden, and careless removal could cause starting or electrical problems. Knowing about the ghost immobiliser can save you from unnecessary issues.
Key takeaways
- Obtain the current PIN, emergency card and installer records.
- Ask the seller to demonstrate the system before handover.
- Change the PIN immediately.
- Learn how to enter and exit Service/Valet Mode.
- Arrange a professional check if its history or operation is unclear.
- Keep a correctly working system, or use a specialist for removal.
How do you know a Ghost Immobiliser is fitted?
The clearest sign is that the vehicle will not start or drive normally until a button sequence is entered. Depending on the vehicle, you may need to switch on the ignition, enter the sequence through existing steering-wheel, dashboard, door or centre-console buttons, wait for two acknowledgement flashes, and then start.
A Ghost does not normally have a visible control box, aftermarket LED or conventional remote fob. It integrates discreetly with the vehicle, so looking around the dashboard may not confirm it. Clues can include an emergency card, installer certificate, invoice, instruction leaflet or the seller entering a code before every journey.
Ask the seller to demonstrate the ghost immobiliser several times. Test it again after switching the ignition off and allowing the system to rearm. If nobody can explain how it works, arrange a professional inspection rather than guessing combinations. Understanding the ghost immobiliser is vital for safe vehicle operation.

What should the seller give you?
The current disarm sequence
Knowing the signs of a ghost immobiliser fitted can help you avoid confusion in the future.
The seller should show you which buttons form the ghost immobiliser sequence and which dashboard indication confirms successful entry. Do not rely only on a written code; watch it work.
Alongside checking the Ghost Immobiliser paperwork, use the GOV.UK used vehicle checking service to confirm the car’s official details and MOT history.
The emergency code card
Ghost-II systems use a unique four-digit emergency code on the owner’s card. It can help when the normal sequence is forgotten or a selected vehicle button stops working. The card may also contain information used for app pairing on compatible installations.
Familiarising yourself with how the ghost immobiliser works is essential for your peace of mind.
Keep the card securely at home. Do not leave it in the glovebox, centre console or document wallet inside the car.
When the card is missing, contact the original installer first. Have the registration, make, model, year and VIN ready, plus any serial number or paperwork. Autowatch states that second owners can contact its support team when the original installer cannot be traced.
Keep in mind that the ghost immobiliser is an important part of your vehicle’s security.
Installer records
Ask for the installation invoice or certificate. Check the installer’s name, contact details, installation date, vehicle registration or VIN and the exact product fitted.
The installer may also have recorded which light provides the acknowledgement flashes and which control acts as the service button. These details make future support easier.
Change the Ghost PIN immediately
Once the existing sequence has been demonstrated, change it. The previous owner, family members, dealership staff or other drivers may know the old code.
Autowatch confirms that the Ghost-II disarm sequence can be changed using the vehicle’s existing controls. Its current guide describes a sequence of four to twenty button presses, although the available buttons depend on the vehicle.
Understanding the ghost immobiliser functionality is essential for effective vehicle protection.
Use the official instructions or ask an experienced installer to guide you. Complete the change somewhere safe, keep both keys available and make sure the vehicle battery is healthy.
Make sure to verify the ghost immobiliser’s performance with professional help if needed.
Choose a PIN that is easy for you to enter consistently but not obvious to somebody watching. Avoid simple repeated presses. Once changed, turn the ignition off, allow the system to rearm and test the new sequence several times.
Do not write the new PIN on paperwork kept inside the vehicle.
Learn how to use Service/Valet Mode
Service/Valet Mode temporarily suspends the normal PIN requirement. It is useful when a garage, tyre centre, bodyshop or valet needs to start and move the vehicle without learning your private code.
The ghost immobiliser is a vital part of ensuring your vehicle’s security and should be well understood.
For Ghost-II, Autowatch says to disarm the system normally and press the configured service button five times. Five acknowledgement flashes confirm that the mode is active. To exit manually, enter the usual sequence with the ignition on. The system can also leave Service Mode automatically after a specified period of driving.
Before handing over the car:
- Activate Service Mode.
- Switch off and restart the vehicle without entering the PIN.
- Tell the garage that an aftermarket immobiliser is fitted.
- Do not give staff your private sequence.
- Exit Service Mode and test the Ghost when the car is returned.
If you do not know the service button, contact the original installer or arrange professional help.
When should you arrange an inspection?
Arrange a professional check when:
- The seller cannot demonstrate the PIN.
- The emergency card and records are missing.
- The car starts without a sequence when Service Mode should be off.
- The system works intermittently.
- A selected button no longer responds.
- Starting faults appeared after electrical, battery, ECU or dashboard work.
- You suspect the installation has been altered.
An inspection should identify the product, confirm whether it operates correctly and establish what information can safely be given to you. The hidden installation location should not be disclosed unnecessarily.
Should you keep or remove the system?
| Option | When it may suit you | What to do |
|---|---|---|
| Keep it | It works correctly and you want PIN-based immobilisation | Change the PIN and secure the emergency card |
| Inspect and reset it | The system seems useful but its history is unclear | Arrange a specialist check and owner handover |
| Remove it | It is faulty, unwanted or unsuitable for your needs | Use a competent vehicle-security specialist |
| Replace or upgrade | It is damaged or no longer appropriate | Confirm compatibility before choosing a replacement |
For many buyers, keeping a correctly installed Ghost is the simplest choice. It adds another authorisation step even when somebody has the vehicle key. However, it is only practical when every regular driver understands the PIN, emergency process and Service Mode.
Removal may be reasonable if the system is faulty or you do not want aftermarket immobilisation. Do not pull apart trim, cut wiring or ask someone unfamiliar with the product to remove an unidentified unit.
Used-car Ghost handover checklist
Before relying on the system, confirm that you have:
- Seen it operate and rearm.
- Received and tested the current sequence.
- Changed the PIN.
- Obtained the four-digit emergency code card.
- Stored the card outside the vehicle.
- Collected the installer certificate or invoice.
- Recorded the installer’s contact details.
- Identified the acknowledgement light and service button.
- Practised Service/Valet Mode.
- Arranged an inspection if anything remains uncertain.
- Given your insurer accurate information without assuming a discount or guarantee.
Frequently asked questions
1. Can the previous owner still use the old PIN?
Yes, until you change it. Replacing or reprogramming the vehicle keys does not automatically alter the Ghost sequence.
2. What if the emergency card is missing?
Contact the original installer with proof of ownership. If they cannot be found, contact Autowatch with the VIN, vehicle details, product information and any available installation records.
3. Can I change the PIN without the emergency card?
Normally, the working current sequence is used to enter the PIN-changing process. The emergency code is particularly important when the normal sequence is forgotten or a chosen button fails. Follow official instructions.
4. Does a garage need my Ghost PIN?
Usually not. Service/Valet Mode is designed to let the garage move the vehicle without learning your sequence. Restore normal operation afterwards.
A properly functioning ghost immobiliser can be your best defence against car theft.
5. Can I remove a Ghost myself?
Once you are familiar with the ghost immobiliser, you can ensure its reliability.
Ensure every regular driver knows how the ghost immobiliser operates to enhance security.
It is not recommended. Its location and connection method vary between vehicles. Professional inspection and removal reduce the risk of faults or damage.
The ghost immobiliser adds an extra layer of safety to your vehicle.
6. Should I tell my insurer?
Regular checks on your ghost immobiliser can prevent any potential issues.
Give your insurer accurate details of any fitted security. Do not assume the Ghost guarantees a lower premium or satisfies a tracker requirement. Ask what evidence and security category the policy requires.
Need help with a Ghost already fitted?
Buying a used car with a Ghost does not need to be difficult. Obtain the emergency information, confirm the installation history, change the PIN and learn Service/Valet Mode before treating the handover as complete.
Do not underestimate the importance of knowing how your ghost immobiliser works.
Safe & Sound Mobile supplies and professionally installs the Autowatch Ghost Immobiliser 2, along with vehicle trackers and security packages. Mobile fitting is available at a home or workplace, with nationwide installation for suitable bookings. Investing in a ghost immobiliser is a wise choice for vehicle security.
Contact Safe & Sound Mobile with the registration, make, model, year and details of the existing ghost immobiliser system. The team can discuss the appropriate next step, including a replacement installation or an additional tracker where suitable.
With a ghost immobiliser, you can enjoy the benefits of advanced vehicle security.
