Everything you need to know about KeyGuard and how it protects your keyless
car from theft.
KeyGuard uses a motion sensor to detect when your key fob is stationary. After 3 minutes of no movement, it automatically disconnects the battery, cutting off the radio signal. When you pick up your key, it instantly reconnects—no manual steps required.
No, quite the opposite! KeyGuard actually extends your battery life by disconnecting it when not in use. The chip itself has extremely low power consumption.
A relay attack is when thieves use signal amplifiers to extend the range of your key fob signal. Even if your keys are inside your home, criminals can boost the signal to unlock and start your car. KeyGuard prevents this by cutting off the signal when your key is stationary.
The Two Pack Bundle includes two KeyGuard chips—one for your main key and one for your spare. You save 20% compared to buying two single packs separately.
Yes, all KeyGuard products come with a 12-month warranty. We are confident in our product quality and stand behind every chip we sell.
KeyGuard is compatible with virtually all keyless entry systems (Passive Keyless Entry/PKE). It works with all major brands including BMW, Mercedes, Audi, Tesla, Toyota, Honda, Ford, and more. The chip is designed to fit standard key fob batteries (CR2032, CR2025, CR2450).
Installation takes less than 5 minutes and requires no tools. Simply open your key fob, wrap the KeyGuard chip around the battery, and close it. That is it!
No! KeyGuard works automatically. When you pick up your key to go to your car, the motion sensor detects movement and instantly reconnects the battery. Your keyless system works exactly as it always has.
KeyGuard works with virtually all keyless entry systems
…and many more! If your car has a keyless entry system, KeyGuard will work.
Most common key fob battery
Thinner variant, widely used
Larger battery for some models
Not sure which battery your key fob uses? Open it up and check—the battery type is printed on the battery itself.
Our support team is here to help. Get in touch and we’ll respond as soon as possible.
