Hardwired GPS Trackers

GPS Trackers with Kill Switch Explained

Daniel Brunes
Jan 7, 2026
GPS tracker with kill switch feature shown inside a vehicle dashboard for remote engine immobilisation and theft protection in Australia

GPS trackers with a kill switch (also known as remote engine immobilisation) provide an added layer of security for certain vehicles. When used correctly, a kill switch can help prevent a vehicle from being driven away after recovery and assist in theft scenarios.

This article explains what a GPS kill switch is, how it works, when it’s appropriate to use, and important safety and compliance considerations in Australia.

What Is a GPS Kill Switch?

A GPS kill switch is a feature that allows a vehicle’s engine to be remotely immobilised through the GPS tracking system.

In practical terms, it prevents the vehicle from being restarted once it has been turned off. It does not shut the vehicle down while driving.

Kill switches are typically available on hardwired GPS trackers and must be installed professionally.

How Does a GPS Kill Switch Work?

A kill switch works by interrupting a critical circuit in the vehicle, such as:

  • Ignition circuit, or
  • Fuel pump circuit

During installation:

  • A relay is wired into the vehicle’s electrical system
  • The GPS tracker controls the relay
  • When the immobilisation command is sent, the relay opens
  • This prevents the engine from starting

The vehicle can then only be restarted once the immobilisation is removed.

What a Kill Switch Does (and Does Not) Do

What it does:

  • Prevents the vehicle from being restarted
  • Helps immobilise a vehicle after recovery
  • Adds another layer of protection in theft scenarios

What it does not do:

  • Shut down a moving vehicle
  • Replace police involvement
  • Guarantee recovery in all cases

Kill switches are a support tool, not a replacement for safe recovery procedures.

When Is a GPS Kill Switch Useful?

A kill switch may be suitable when:

  • Theft risk is high
  • The vehicle is high-value
  • The vehicle carries tools, equipment, or stock
  • The vehicle is part of a business fleet
  • You want additional security beyond tracking alone

It is commonly used for:

  • Work utes and vans
  • Fleet vehicles
  • Rental and hire vehicles
  • High-risk or high-value vehicles

Safety Considerations

Safety is critical when using a kill switch.

Important points:

  • A kill switch should only be activated when the vehicle is safely stationary
  • It should never be used while a vehicle is in motion
  • Activation must be done responsibly and in accordance with the law

This is why professional installation and correct usage are essential.

Are Kill Switches Legal in Australia?

Kill switches are legal in Australia when:

  • Installed professionally
  • Used responsibly
  • Not used to endanger drivers or the public
  • Compliant with relevant vehicle and safety regulations

Because regulations can vary by state and situation, it’s important to use this feature appropriately and seek professional advice where required.

Which Vehicles Are Suitable for a Kill Switch?

Not all vehicles are suitable for kill switch installation.

Suitability depends on:

  • Vehicle make and model
  • Electrical system design
  • Use case (personal vs business)
  • Compliance requirements

A professional installer should always assess suitability before installation.

GPS Trackers with Kill Switch vs Standard GPS Trackers

Standard GPS trackers provide:

  • Location tracking
  • Movement alerts
  • Trip history

GPS trackers with kill switch capability provide:

  • All of the above, plus
  • The ability to immobilise the vehicle when appropriate

This makes them suitable for higher-risk security applications.

Battery Backup and Kill Switch Systems

Quality hardwired GPS trackers with kill switch capability often include internal battery backup.

This allows:

  • Continued tracking if vehicle power is cut
  • Greater reliability during tampering
  • Improved performance in theft scenarios

Battery backup is an important feature for security-focused installations.

GPS Kill Switches and Theft Recovery

In theft situations, a kill switch can:

  • Prevent the vehicle from being driven away after recovery
  • Assist in immobilising the vehicle once located
  • Reduce the risk of repeat movement

It is typically used in coordination with GPS tracking data and police involvement.

EZY GPS and Kill Switch Capability

For customers who require this feature, EZY GPS offers hardwired GPS trackers with optional kill switch capability, where suitable and compliant.

This allows:

  • Discreet installation
  • Reliable tracking
  • Added immobilisation support for appropriate vehicles

Suitability is always assessed before installation.

When a Kill Switch May Not Be Appropriate

A kill switch may not be suitable if:

  • The vehicle is frequently shared
  • The vehicle has complex electronics
  • The vehicle is used in sensitive environments
  • There are safety or compliance concerns

In these cases, standard GPS tracking may be the better option.

Final Thoughts

GPS trackers with kill switch capability provide an additional layer of security for certain vehicles when installed and used correctly. They are particularly valuable in theft prevention and recovery scenarios, where visibility alone may not be enough.

When combined with discreet hardwired installation and responsible use, a kill switch can enhance vehicle security without compromising safety.

Share on: