Can Car Keys Be Converted to LCD Keys?

[DeCali]

Car keys can be converted to LCD keys. Below is an introduction to car keys: 1. Remote Key: A remote key allows you to unlock and lock the doors from a distance without inserting the key into the lock. Its greatest advantage is that, regardless of day or night, you can conveniently unlock and lock the car from a distance without needing to locate the keyhole. 2. Keyless Start: Keyless start uses radio frequency identification (RFID) technology. The system automatically unlocks and locks the doors via a chip in the smart card carried by the owner. When approaching the vehicle within a certain distance, the doors will automatically unlock and disable the anti-theft system. When leaving the vehicle, the doors will automatically lock and activate the anti-theft system. 3. Smart Key Start: A smart key emits infrared signals that can unlock one or two doors, the trunk, and the fuel filler cap, as well as operate the car's windows and sunroof. More advanced smart keys resemble credit cards. When the driver touches the door handle, the central locking system activates and emits a wireless query signal. Upon receiving the correct response from the smart key card, the car lock automatically opens. The engine will only start if the central processor detects that the key card is inside the car.

[LeviLynn]

I've been researching key modifications for years and believe that upgrading to an LCD key is indeed possible. First, check if your car model is compatible—some high-end models like BMW or Mercedes come with built-in support for smart key systems. The modification involves replacing the chip and installing an LCD screen component, costing around 2000 to 5000 RMB depending on the quality of the parts. A friend of mine tried it once, and the key stopped working, but thankfully it was fixed after reprogramming. The benefits include rich features like displaying lock status or remaining fuel, and the convenience of remote engine start. However, battery life is a concern—typically requiring a charge every six months, so keep a power bank handy. After modification, the key becomes bulkier and less flexible in your pocket, with potential signal interference issues. It's best to consult a professional shop for OEM services rather than DIY—safety first.

[StReese]

As a veteran mechanic with over a decade of experience, I often encounter this issue. Converting car keys to LCD versions is feasible, but it depends on the vehicle's age and technical specifications. For newer models post-2020 with higher electronic system compatibility, adding modules is easier. Older models face hardware incompatibility issues, making modifications labor-intensive and expensive, with costs starting around 3000 yuan for parts and labor. During modification, the original key must be disassembled to replace the circuit board and connect the display screen, requiring careful handling to avoid short circuits or chip damage. After modification, test the anti-theft function to ensure quick unlocking response without false alarms. The benefits include practical features like viewing tire pressure or fuel consumption data, helping owners monitor their vehicles. However, battery consumption increases, so regular checks are advised to prevent key failure. It's best to have a professional technician handle the process to avoid future issues.

[OJourney]

I usually drive with a regular key, but I've heard about LCD key modifications. It needs to be compatible with the vehicle model, and you can either buy a kit to install it yourself or use a service, with prices ranging from one to two thousand. After the modification, the key looks more premium and displays information more intuitively, such as temperature monitoring. However, I find it troublesome—the modification process is time-consuming and might go wrong, potentially rendering the key useless. The benefit is remote control, which is convenient for pre-warming the car. The downside is the short battery life; needing to recharge every six months is annoying, and the larger size affects portability. Not necessary to modify.