Can Car Remote Keys Be Duplicated?

2 Answers
LeSawyer
07/25/25 12:31am
Car remote keys can be duplicated, but it requires visiting a 4S dealership. The dealership will use the vehicle registration certificate and the owner's ID provided by the owner to query the anti-theft password for key configuration from their database. The method to replace a remote key is as follows: 1. Press the button on the car remote key to remove the mechanical key; 2. Insert a tool into the hole at the back of the key and gently pry it open; 3. Open the back cover and remove the old battery to proceed with the replacement. Car remote keys utilize the wireless remote control function of the central locking system, allowing doors to be unlocked or locked from a distance without inserting the key into the lock. The working principle is: the key emits a weak radio wave, which is received by the car's antenna. The electronic control unit then identifies the signal code, and the system's actuator performs the unlocking or locking action.
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VonJames
08/10/25 3:46pm
Yes, car remote keys can be duplicated. I just got a new one for my wife's car last month because her original key was accidentally lost, which really worried us. I went directly to an authorized dealer, and they needed the original key's serial number and the vehicle's VIN code to confirm the match. The process was actually quite fast, taking about an hour, but the price was a bit high—costing nearly 500 yuan. If you're on a budget, hiring a professional locksmith is more affordable; they can also program a new key by scanning the car's electronic system. However, be aware that after the key is encoded, the old key might be deactivated to prevent unauthorized use. For safety, it's recommended to regularly check the key's functionality, especially after exposure to rain, as it’s prone to damage. Don’t make the same mistake as my friend who carelessly stuffed it in a bag, leading to corrosion. Overall, duplicating a key is feasible, and it’s better to choose a reputable shop for peace of mind—don’t wait until it’s an emergency.
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