Modern cars are equipped with increasingly complex electronic systems that enhance comfort, safety, and convenience. One of these technologies is keyless access—a feature that has already become standard for many mid-range and premium models. However, along with the benefits, it also introduces new security challenges. In this article, we will explore how keyless access works, what risks exist, how to avoid them, and what the future holds for this technology.
What is Keyless Access?
Keyless access is a system that allows you to unlock, lock, and start a car without using a traditional key. The owner only needs to have a smart key or tag with them. This technology is widely used in modern vehicles, particularly electric cars, and has become a standard feature for most mid-range and premium segment cars.
How Does Keyless Access Work in a Car?
The smart key continuously emits a radio signal, which is received by sensors installed in the vehicle. When the key is within the system's range, the electronics activate the door unlocking function. To start the engine, it is enough to press the start button.
Some models, including those from BLS electric vehicle rentals, offer expanded functionality: automatic seat, mirror, and climate control adjustments based on the user profile.
Benefits of Keyless Access
Keyless access in modern cars is no longer a luxury but a necessity, especially in the context of dynamic urban living and frequent travel. This technology provides instant access to the vehicle without the need to take out the key or interact with the locks. It's especially convenient when your hands are full or in bad weather. Integration with smartphones and digital services further expands the remote control capabilities of the vehicle.
- Convenience: No need to search for the key in your pocket or bag.
- Speed: Unlocking and starting take seconds.
- Integration: Easily combines with mobile apps and remote management, such as in a Tesla vehicle.
Additionally, many manufacturers now support digital keys, allowing car access to be shared via smartphone or mobile app—a handy feature if you plan to share the car with someone else or rent it remotely.
Potential Risks and Drawbacks of Keyless Access
The main issue is vulnerability to relay attacks, where criminals intercept the smart key signal and use it to unlock the vehicle.
Additionally, system malfunctions or a dead smart key battery may temporarily prevent access to the car. In some cases, improper software updates can also cause system failures.
Another significant threat is interference with the car’s CAN bus: attackers can use special devices to directly connect to the vehicle’s onboard electronics.
Methods to Protect Keyless Access from Theft
The keyless access system requires not only convenience but also a responsible approach to security. Each year, the number of theft attempts targeting such vehicles grows due to electronic vulnerabilities. It is essential to be aware of effective protection methods and proactively implement a comprehensive security strategy. Below are practical tips to maximize your car’s protection.
Use of Additional Security Systems
Installing GPS trackers, immobilizers, and alarms with anti-hijack functions significantly complicates theft attempts. It is also advisable to consider mechanical locks, especially if you're using daily car rentals.
In 2023, compact GSM alarms with the ability to block ignition via a mobile app became popular. They can be integrated into any modern vehicle.
Smart Key Protection
It is recommended to store the smart key in a special pouch or foil-lined box that blocks the radio signal. This prevents criminals from intercepting the signal near your home or office.
Additionally:
- Do not leave the key near doors or windows.
- Use RFID-blocking cases.
- If tampering is suspected—replace the keys or disable keyless access in the car settings.
Regular Software Updates
Automakers regularly update firmware to fix vulnerabilities. It is recommended to keep the car’s software up to date, especially for vehicles with keyless access.
Some models support over-the-air (OTA) updates, so it's important not to ignore update notifications.
The Future of Keyless Access
It is expected that in the future, smart keys will be completely replaced by smartphones or biometric data. Some manufacturers are already implementing facial recognition or fingerprint access. Deeper integration with cloud services is also planned, allowing for remote control of all car functions.
Companies like Apple are already expanding the Apple CarKey functionality, and Android now offers digital key alternatives that enable not only unlocking but also starting the car without physical presence of the key.
Keyless access technology is undoubtedly convenient but requires a proper level of protection. Understanding how keyless access works in a car enables you to make informed decisions when choosing a vehicle, especially during car rental.
For owners of modern electric cars, this is not the future—it’s the present. But remember: even the smartest car needs a smart owner.