Car Security System
“Z-GUARD" is the most advanced automotive anti-theft device.
This patented system defends against modern theft methods, including CAN inverter, GAMEBOY (key emulator), and relay attacks.
Ensure your peace of mind and protect your vehicle.
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- Main Features -
①Push-start block function using a smartphone (Bluetooth communication) authentication method.
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- Main Features -
①Push-start block function using a smartphone (Bluetooth communication) authentication method.
②Smart key lock/unlock (all door handles) functions are disabled if smartphone (Bluetooth communication) authentication is not performed.
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- Main Features -
①Upgrade kit from Z-GUARD-1 to Z-GUARD-3
ORIGINAL JAPAN (MADE IN JAPAN)
The Z-GUARD Series offers the same fundamental security performance across all models.
It does not require an upgrade after installation.
Add the necessary options as needed to enable system upgrades. You can build a powerful system tailored to your parking environment, budget, usage habits, and personal preferences. Please consult with a Z-GUARD dealer installer who possesses extensive knowledge.
SMART ENTRY & BLOCK FUNCTION EQUIPPED MODEL
Z-GUARD-3 is the enhanced model with the Smart Entry & Block function added to the features of Z-GUARD-1. This model allows one-touch installation without cutting the vehicleside harness. (INDUSTRY FIRST)
The Engine Push Start function is controlled by an FET (high-performance semiconductor switch). (Patent granted)
JSC’s proprietary Z-GUARD is designed and developed to "cut off” the wiring, making it impossible to start the engine.
The semiconductor is made in Japan, ensuring high reliability and reducing the risk of semiconductor switch failure.
When the security system is armed, current is limited to only 1mA.
During engine start, the security system enters OFF state, consuming only 6mA.
As a result, battery drain is eliminated even when the vehicle is not used for an extended period.
Z-GUARD is a next-generation security system developed using proprietary technology with no counterparts, designed to meet users' expectations.
By continuously advancing our embedded software, we plan to stay ahead in the fight against automotive theft in the future.
We introduce our new patented technologies.
- · Invention Name:
- Electromagnetic Relay (Patent No. 7300564)
- · Invention Name:
- Security Relay (Patent No. 7555522)
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Z-GUARD series complies with Japan’s technical standards for specified low power radio equipment under the Radio Law.
A compliance mark is displayed on products that meet these requirements.
Z-GUARD series is fully compliant with the Radio Law, so you can use it with confidence. 
Authentication System (Smartphone via Bluetooth)
Using a dedicated smartphone app, Bluetooth secure communication is used to authenticate the security unit installed in the vehicle. When Auto Mode is enabled, the system automatically disarms when a registered smartphone with the security app comes within range of the vehicle.
The dedicated app also works in background mode. You can manually turn the security ON/OFF using the app.
There is no limit to the number of smartphones that can be registered.
★Depending on the smartphone specifications, screen lock (when the screen is OFF) being active for an extended period of time or the battery saver function may cause the Bluetooth connection to become unstable.
In such cases, either unlock the screen or restart the app to re-establish the connection.
Z-GUARD OPTION REMOCON
A convenient additional remote for use in emergencies or when borrowing or lending your vehicle and in other situations where a smartphone cannot be used.
- This product is for domestic vehicles and compatible vehicle models only. It cannot be installed on vehicle types not listed in the compatibility chart.
- This product does not completely prevent vehicle theft. Its purpose is to deter theft by requiring sufficient time for the security function to disengage.
- We are not liable for any damage or loss caused by theft, burglary, or other incidents related to the operation of this device. Thank you for your understanding.
- This product is sold and installed only through authorized dealers. Sales by individual units are not available.
- As this is a vehicle-specific design, we do not provide support for installation on vehicle models that are not specified, nor for uses other than the intended purpose of the product.
- If you notice any abnormailities or malfunctions, discontinue use immediately and contact your place of purchase or our customer support center.
- We are not responsible for any accidents, illegal acts, vehicle malfunctions, or damage caused while using this product.
- When used outside Japan, we shall bear no responsibility or provide any warranty.
- Images and photos shown on the website are for illustrative purposes only and may differ from the actual product.
- Product specifications, included components, pricing, and design are subject to change without prior notice for improvement. Thank you for your understanding.