Ghost 2 Immobiliser vs Factory Security: 7 Powerful Differences

Modern cars come with sophisticated factory security systems designed to help prevent theft and unauthorised access. These systems can include immobilisers, alarms, electronic key authentication, central locking and, on some models, keyless-entry technology.

However, the technology used by criminals has also evolved.

This has led many UK vehicle owners to compare Ghost 2 Immobiliser vs Factory Security when considering whether additional aftermarket protection is worthwhile.

A factory security system is built into the vehicle by the manufacturer, while the Ghost 2 Immobiliser is an aftermarket security system designed to add another authentication layer. Autowatch describes Ghost II as a covert CAN-bus immobiliser that uses a personalised disarm sequence through the vehicle’s existing buttons, without requiring an additional RF key fob for its standard PIN operation.

But is an aftermarket immobiliser really different from the security already fitted to your car?

In this guide, we’ll explain Ghost 2 Immobiliser vs Factory Security, including seven key differences, how each works, their advantages and limitations, and whether using an additional immobiliser makes sense for your vehicle.

What Is Factory Car Security?

Factory security refers to the security systems installed by the vehicle manufacturer.

Depending on the make and model, a modern vehicle may have:

• An electronic immobiliser
• Factory alarm
• Central locking
• Electronic key authentication
• Keyless entry
• Engine-management security
• Security-related software

A factory immobiliser is designed to prevent the vehicle from being driven using an unauthorised key or authentication method.

Thatcham Research assesses new vehicle security through its New Vehicle Security Assessment, considering physical anti-theft systems, digital security protocols and keyless-entry protection.

This means factory security should not be dismissed. It remains an important part of the vehicle’s overall protection.

What Is a Ghost 2 Immobiliser?

The Ghost II is an aftermarket electronic immobiliser developed by Autowatch.

The system is designed to work with compatible vehicles using their electronic network and a personalised disarm sequence.

Autowatch states that the Ghost II uses the vehicle’s existing buttons to enter a secret sequence, with no additional RF key fob or visible LED required for its standard PIN-based operation.

The system also includes Service/Valet Mode, which can be used when the vehicle is handed to a workshop or another authorised person.

The exact functionality depends on the vehicle and installation.

Ghost 2 Immobiliser vs Factory Security: 7 Powerful Differences

1. Factory-Fitted Security vs Aftermarket Protection

The first difference in the Ghost 2 Immobiliser vs Factory Security comparison is where the systems come from.

Factory security is designed and installed by the vehicle manufacturer before the car reaches the customer.

Ghost II is installed afterwards as an aftermarket security layer.

This distinction matters because an aftermarket system can be used to supplement the security already fitted to the vehicle rather than replacing every factory feature.

For example, a vehicle can retain its factory alarm and immobiliser while an additional Ghost system introduces another authentication requirement.

This layered approach can be particularly attractive for owners of high-value vehicles.

2. Factory Key Authentication vs Personalised PIN

Factory immobilisation commonly works alongside the vehicle’s original key or electronic authentication system.

The Ghost II introduces a different method of authentication.

According to Autowatch, the Ghost II uses a personalised sequence entered through existing vehicle buttons.

This means the driver can have an additional authentication step beyond simply having the vehicle’s normal key.

The advantage is that access to the original key does not necessarily provide the only authentication needed to operate the vehicle.

3. Visible Factory Features vs Covert Installation

Factory security is integrated into the vehicle and usually doesn’t advertise exactly how it works.

However, some factory systems include visible security indicators, alarm components or other recognisable features.

Ghost II takes a deliberately covert approach.

Autowatch describes it as a covert CAN-bus immobiliser with no visible LED or extra RF key fob for its standard operation.

This can make it harder for someone inspecting the vehicle to immediately identify the additional security system.

For owners who prefer discreet protection, this is an important distinction.

4. Standard Security vs Additional Authentication

The purpose of factory security is to protect the vehicle using the systems designed by the manufacturer.

However, vehicle security isn’t static.

Thatcham Research notes that modern security needs to address physical protection, digital vulnerabilities, keyless entry and emerging attack methods.

An aftermarket immobiliser provides another layer.

The Ghost II can require personalised authentication before normal driving is permitted.

Therefore, when comparing Ghost 2 Immobiliser vs Factory Security, the main advantage of the aftermarket system is not necessarily that it replaces factory security but that it can add another obstacle.

5. Protection Against Key-Related Theft

Modern vehicle theft can involve compromised keys or attacks on keyless systems.

Autowatch specifically markets Ghost II as protection against key cloning and relay theft.

The additional PIN requirement means the vehicle has another authentication stage.

However, it is important not to assume that any immobiliser completely eliminates every possible theft technique.

Thatcham Research continues to assess digital and keyless security as vehicle technology develops.

For keyless vehicles, owners should still take appropriate precautions to protect their keys.

6. Automatic Security vs Driver Authentication

Factory security is generally designed to operate automatically.

When you lock the vehicle and walk away, its factory security functions typically operate without requiring a separate manual authentication step.

The Ghost II adds an additional action for the authorised driver.

Autowatch states that the driver enters their unique sequence using the vehicle’s existing controls before driving normally.

For some owners, this extra step is a worthwhile trade-off for additional protection.

For others, the convenience of completely automatic factory security may be more important.

This is ultimately a personal preference.

7. Security Architecture and Layering

The final difference is how the systems fit into an overall security strategy.

Factory security is the vehicle’s original foundation.

A Ghost 2 Immobiliser can add another layer.

Other products can add still more functionality.

For example:

Factory Security
Original immobiliser, alarm and key authentication.

Ghost II
Additional electronic authentication.

S5 Tracker
Vehicle tracking and recovery.

Steering Lock
Visible physical deterrence.

Key Protection
Additional protection for keyless systems.

Thatcham Research recognises separate certification categories for electronic immobilisers, alarms, wheel-locking devices, vehicle tracking systems and asset-location systems.

Using several appropriate layers can therefore provide broader protection than relying on one system.

Ghost 2 Immobiliser vs Factory Security: Comparison Table

Is Ghost 2 Better Than Factory Security?

It’s not necessarily accurate to say that Ghost II simply replaces or makes factory security unnecessary.

Factory security is an integral part of the vehicle.

The Ghost II is designed to add another layer.

A better way to look at the Ghost 2 Immobiliser vs Factory Security question is:

Factory security provides the foundation.

Ghost II provides additional authentication.

This can be valuable for vehicle owners who want more security than the factory system alone provides.

Does Ghost 2 Work With Factory Security?

Yes, the Ghost II is designed as an aftermarket security layer for compatible vehicles.

Autowatch states that Ghost II uses covert CAN-bus integration and works alongside the vehicle’s existing security features.

However, compatibility is vehicle-specific.

Before installation, confirm that the exact Ghost system is compatible with your make, model and year.

Can Ghost 2 Protect Against Keyless Theft?

Ghost II is marketed by Autowatch as protection against relay theft and key cloning.

Its additional authentication requirement can provide a layer beyond the normal keyless-entry process.

However, keyless-car owners should still protect their keys.

Thatcham Research recommends practical steps such as keeping keys away from doors and windows and considering appropriate signal-blocking measures for vulnerable keyless systems.

A Ghost Immobiliser and good key-security practices should therefore be viewed as complementary.

Does Ghost 2 Stop Car Theft Completely?

No security system should be described as completely theft-proof.

A Ghost II is designed to make unauthorised vehicle use more difficult through an additional authentication requirement.

However, vehicle theft can involve multiple attack methods, and security technology continues to evolve.

The strongest approach is generally to use several appropriate security layers.

For example:

• Factory security
• Ghost II
• Suitable vehicle tracker
• Steering lock
• Secure key storage
• Secure parking

Each measure has a different purpose.

Ghost 2 Immobiliser vs Factory Alarm

An alarm and immobiliser are not the same thing.

Thatcham’s security definitions describe an alarm as a system intended to provide warning of attempted intrusion or unauthorised interference, while an immobiliser is intended to prevent or curtail unauthorised vehicle use.

This difference is important.

A factory alarm can alert people to an intrusion.

A Ghost II can add a further authentication barrier before the vehicle can be driven.

Using both can therefore provide complementary protection.

Does Ghost 2 Need a Separate Key Fob?

The standard Ghost II PIN-based system does not require a separate RF immobiliser key fob.

Autowatch says the driver uses the vehicle’s existing buttons to enter the unique disarm sequence.

Some eligible versions can support optional tags or phone-based functionality, so the exact configuration should be confirmed with your installer.

What About Service and Valet Mode?

A security system needs to remain practical when the vehicle requires servicing.

Ghost II includes Service/Valet Mode for workshops and vehicle handovers. Autowatch explains that the system can temporarily suspend the normal disarm requirement for these situations.

Before using this function, make sure you understand how to activate and deactivate it.

The installer should demonstrate the process when the system is fitted.

Is Ghost 2 Thatcham Certified?

Thatcham Research operates a formal security-certification programme covering aftermarket and vehicle-manufacturer security products. Its categories include electronic alarms and immobilisers, tracking systems and other security devices.

However, certification applies to specific products and configurations.

You should therefore verify the current certification status of the exact product being installed.

It is also important to distinguish Thatcham certification from insurer recognition. Thatcham states that certification does not automatically guarantee insurer recognition because this is negotiated separately between manufacturers and insurance partners.

If you’re installing the system for insurance reasons, check with your insurer before purchasing.

How Much Does Ghost 2 Installation Cost?

The price of a Ghost II installation varies by vehicle, installer, location and installation requirements.

Some UK suppliers advertise fully fitted Ghost II packages around the £499 level, but this should be treated as an indicative market price rather than a universal UK price.

A more accurate quote should be based on your exact vehicle.

Before booking, ask whether the quote includes:

• Ghost II hardware
• Professional installation
• VAT
• PIN configuration
• Demonstration
• Warranty
• Aftercare

Who Should Consider a Ghost 2 Immobiliser?

An additional immobiliser may be worth considering if you:

• Own a high-value vehicle.
• Own a frequently targeted model.
• Have a keyless vehicle.
• Park outside overnight.
• Want discreet additional security.
• Want another authentication layer.
• Already use a tracker and want additional preventative protection.

However, not every vehicle needs the same security setup.

Your vehicle’s risk, value, location and insurance requirements should influence the decision.

How to Choose the Right Security Setup

Rather than asking which single security product is best, consider the different roles.

Prevention

A suitable immobiliser can add protection against unauthorised starting.

Detection

An alarm can alert you to attempted intrusion or interference.

Recovery

A suitable tracker can help locate the vehicle following theft.

Physical Deterrence

A steering lock can provide a visible mechanical barrier.

Key Protection

Secure key storage can help reduce risks associated with vulnerable keyless systems.

A layered strategy can therefore address several stages of vehicle theft.

Final Verdict: Ghost 2 Immobiliser vs Factory Security

The Ghost 2 Immobiliser vs Factory Security comparison is not really a choice between two completely separate alternatives.

Factory security provides the original protection built into the vehicle.

Ghost II adds an aftermarket layer designed to introduce additional driver authentication.

The Ghost II’s key features include a personalised PIN sequence, covert CAN-bus integration, no additional RF key fob for standard PIN operation and Service/Valet Mode.

For owners of high-value, keyless or higher-risk vehicles, this additional layer may provide useful extra protection.

However, no security system can guarantee complete protection against theft.

The most sensible approach is to combine appropriate security measures based on the vehicle and its individual risks.

Before installation, check compatibility, exact product model, current certification, installer credentials, warranty and insurance requirements.

Ultimately, factory security should be viewed as the foundation, while an appropriate aftermarket immobiliser can provide an additional layer for drivers who want stronger vehicle protection.

Frequently Asked Questions

What is the difference between Ghost 2 Immobiliser and factory security?

Factory security is installed by the vehicle manufacturer and forms part of the car’s original security architecture. Ghost II is an aftermarket system designed to add another authentication layer using a personalised sequence on compatible vehicles.

Is Ghost 2 better than a factory immobiliser?

Ghost II should generally be viewed as an additional layer rather than a replacement for factory security. Its main distinction is the extra authentication requirement.

Can Ghost 2 work with the factory immobiliser?

Yes, Ghost II is designed to operate as an additional security system on compatible vehicles while retaining the vehicle’s factory security.

Does Ghost 2 protect against key cloning?

Autowatch markets Ghost II as protection against key cloning and relay theft. The additional authentication sequence provides another barrier beyond the vehicle’s standard key authentication.

Can Ghost 2 Immobiliser vs Factory Security protect a keyless car?

A compatible Ghost II can provide an additional security layer for a keyless vehicle. However, keyless owners should still protect their keys and follow appropriate security precautions.

Does Ghost 2 Immobiliser vs Factory Security require a separate key fob?

No. The standard Ghost II PIN-based system uses the vehicle’s existing controls instead of requiring a separate RF immobiliser fob.

Does Ghost 2 Immobiliser vs Factory Security have Service Mode?

Yes. Ghost II includes Service/Valet Mode for workshops and authorised handovers.

Can Ghost 2 Immobiliser vs Factory Security stop car theft completely?

No security product can guarantee complete protection from every theft method. Ghost II is designed to make unauthorised vehicle use more difficult through additional authentication.

Is Ghost 2 Immobiliser vs Factory Security Thatcham approved?

Certification should be verified for the exact product and configuration. Thatcham Research operates formal security certification schemes for automotive security products, but certification does not automatically guarantee insurer recognition.

Will Ghost 2 Immobiliser vs Factory Security reduce my insurance premium?

Not automatically. Insurance recognition varies between providers, so confirm the requirements with your insurer before installation.

Is Ghost 2 Immobiliser vs Factory Security worth it for a high-value car?

It can be worth considering when you want an additional electronic security layer beyond the vehicle’s factory security. High-value and higher-risk vehicles may have greater reasons to consider additional protection.

Can Ghost 2 Immobiliser vs Factory Security be combined with an S5 tracker?

Yes, where the products are compatible. The immobiliser and tracker perform different roles: additional starting protection and tracking/recovery respectively.

How much does Ghost 2 Immobiliser vs Factory Security installation cost?

Prices vary by vehicle and installer. Some UK providers advertise fully fitted Ghost II packages around £499, but you should obtain a vehicle-specific quote and confirm exactly what is included.

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