Car and Automotive Security Services

Automotive Transponders | Immobiliser Technology

St George Locksmiths Car and Automotive Security Services are the specialists in providing superior auto locking services to car owners, mechanics, motor enthusiasts and repairers. We specialise in Automotive Lock repair and service and can recode and repair car door locks and ignitions (most cars 1977 to present).

If you have lost your car keys talk to us first!!

We supply, copy and repair automotive transponders keys for many types of vehicles, with no need for you to go to the manufacturer or dealer. With our Automotive Transponder device we can make a new set of your car keys and program your automobiles Electronic Management System computer, to match the Immobliser Technology built in.

Other Services include;
• Replacement of lost car keys for most vehicles
• Automotive Lock repairs
• Recoding of car ignition and barrels
• Toyota ECU Reset service and Toyota grey key duplication where no master is available
• 4 Track and High Tech keys for most European and Australian vehicles

Case Study
A concerned customer contacted St George Locksmiths from Miranda Shopping Centre after locking his set of keys in the boot of his new Volkswagen Touareg. The customer was very concerned of the possiblility of damaging his car with standard opening procedures as he had only purchased the car recently. Supplied with the the manufacturers key code we were able to supply a perfect working set of the high tech key all without damage or force to enter the vehicle.

We can cut key blades for Holden, Ford, Mitsubishi, Toyota, Peugeot, BMW, Mercedez and most other makes, contact us for a comprehensive list of available cars.

** Attention all Motor Mechanics, Car Enthusiasts, Repairers and Mobile Workshops, we are open 7 days a week 8:30am – 5:30pm (closed from 12:00pm Sundays) to perform all repairs and recoding to produce a complete working set of car keys. Visit our Rockdale office at Shop 1, Tramway Arcade, Rockdale. Tel: 02 9567 8686 **

Automotive Transponders

In keeping in touch with todays latest technologies, St George Locksmiths stock, cut and program Automotive Transponder Keys for most Australian vehicles.

What are Automotive Transponder Keys?

The biggest change to the automotive industry in recent times has been the introduction of the built in immobilise system on all cars manufactured since 1995 (late ’94 in some cases). This involves placing a microchip in the head of the key, which is a miniature transmitter and receiver. There is an engine management system in the engine compartment that can recognise the signals transmitted from the key. If the correct signals are not detected the engine will not start.

How does the Microchip work?

An electronic chip with a permanent memory which contains an ELECTRONIC CODE. The transponder has an antenna with which it can interface with an external electronic control device.

Through the antenna the device emits a fixed frequency signal; the transponder receives the signal and then transmits its electronic code, by means of special frequency modulations, to the control device, which is able to process the code.

The transponder has no external input of power supply (passive system); it receives the energy necessary to work from the signal emitted by the external control device (inductive coupling between the control device antenna and that of the transponder).

Can we copy all transponders?

We cover a large range of car makes and models, contact us for a free no obligation quote and advice.

What is a Transponder Key?


Electronic chip:
A chip inside the head of the key transmits a signal to the car when the key is inserted in the ignition.

Mechanical element
The key is cut as per traditional keycutting process.

Contact us today to arrange installation or purchase of any Auto Transponder Keys.

Immobiliser Technology

Immobiliser Technology is integrated with your automobiles Electronic Management System computer, via an aerial located in the proximity of the ignition switch. It detects a coded microchip housed in the ignition key, without the signature of the microchip being detected the automobile will not start. The microchip within the ignition key also uses passive technology and therefore there is no need to worry about batteries going flat or replacements like most automotive applications.

Contact us today to arrange installation or purchase of any Auto Immobiliser Keys.

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