Toyota Secondary Immobiliser for LC300 and Prado 250

Toyota Australia has launched a new factory-approved secondary immobiliser for the LandCruiser 300 Series and LandCruiser Prado 250, adding another layer of security for owners.

Toyota says the system has undergone extensive testing and development and is designed to work alongside, rather than replace, the vehicle’s existing factory-fitted immobiliser.

How does Toyota’s secondary immobiliser work?

The new system adds another vehicle-start authentication step on top of the LandCruiser’s existing primary immobiliser. For the vehicle to start, a separate Immobiliser Fob must be within range. Without the fob present, the secondary immobiliser is designed to prevent the vehicle from being started.

The system also includes an independently powered siren with its own battery backup. Toyota says the siren is designed to activate in response to unauthorised actions and can continue to provide an audible deterrent even if the vehicle’s main electrical power is disconnected.

Importantly, Toyota isn’t claiming the system makes the LC300 or Prado theft-proof. The company says no security system is impervious to theft and recommends owners continue to use a layered approach to vehicle security.

How much does the Toyota secondary immobiliser cost?

The Toyota Genuine Accessory Secondary Immobiliser costs $1,735 fitted through Toyota’s Australian dealer network.

For now, it’s available for the current-generation:

Toyota LandCruiser 300 Series
Toyota LandCruiser Prado 250

Toyota says factory-approved secondary immobilisers for a wider range of its vehicles are currently under study.

Toyota has already upgraded vehicle security

The secondary immobiliser isn’t Toyota’s only response to evolving theft methods. According to Toyota Australia, security enhancements were introduced to the new HiLux, LandCruiser 300 and LandCruiser Prado 250 during 2025. The company says these measures are continuing to be rolled out across new models, including the all-new RAV4.

Toyota wants vehicle theft devices banned

Toyota is also calling for greater regulation of devices that can be used to facilitate vehicle theft and is working with law enforcement agencies, government and the wider automotive industry to support the banning of these devices.

At the same time, Toyota is supporting regulation of legitimate equipment used by locksmiths, mechanics and other automotive professionals rather than an outright ban on technology that has genuine automotive applications.

For LandCruiser 300 and Prado 250 owners, however, the most immediate development is much simpler: there’s now a Toyota-backed secondary immobiliser available through the dealer network for those wanting another layer of protection for their 4X4.