How to Open the Mechanical Key of BYD Song?
3 Answers
Song Pro mechanical key removal method: First, flip a switch behind the button, then pull out the cover plate, pry open the cover to remove the key back cover, and the mechanical key is hidden inside. Take it out to use. How to open the car door with a mechanical key: Insert the mechanical key directly into the keyhole of the door to open and lock the door. There is a hidden keyhole in the car's armrest box or under the cup holder. Insert the remote key to use the one-button start function. There are two types of mechanical keyholes: The first is more commonly used and is exposed outside. The second is a hidden type of mechanical keyhole. Some car models hide the mechanical keyhole under a cover to maintain the appearance's aesthetics. Just peel off the cover to see the mechanical keyhole. Car remote key: A remote key allows you to open and lock the door from a distance without inserting the key into the keyhole. Its biggest advantage is that, regardless of day or night, you don't need to locate the keyhole and can conveniently unlock and lock the car from a distance. The basic principle of a remote key is that it emits a weak radio wave from the key, which is received by the car's antenna. The electronic control unit (ECU) identifies the signal code, and the system's actuator (motor or electromagnetic coil) performs the action of opening or closing the lock. The system mainly consists of two parts: the transmitter and the receiver.
Last time I drove my BYD Song for an outing, the remote key suddenly ran out of battery. Thinking quickly, I opened the mechanical key to find a backup solution. That small sliding button on the side of the key—just give it a gentle push and the metal piece pops out. Insert it into the door lock, give it a twist, and it opens. The whole process is quite simple, but you have to be careful not to use brute force, otherwise the buckle can easily break. As a car owner, I find this feature very thoughtful, preventing you from being stranded due to electronic failure. Now, during every maintenance check, I inspect the remote battery level and also test the mechanical key to ensure it operates smoothly without sticking, avoiding any awkward situations when out and about. Additionally, I’d like to remind everyone not to leave the key in a high-temperature car for long periods, as it can cause the plastic parts to age and deform, affecting usability. These small maintenance steps can save a lot of hassle.
From my perspective on the mechanical design of the key, there's usually a hidden button at the lower edge of the BYD Song remote key. A gentle press will pop out the spare metal key blade. This arrangement is for emergency use in case of battery depletion or signal interference, ensuring you can always unlock the car door. The key blade is delicately designed but fragile—avoid forceful pulling to prevent damage to the lock cylinder. In practice, I've noticed many people overlook this feature, yet mastering this operation significantly enhances convenience. When going on road trips, I always keep a spare battery in my bag. If the remote fails, I can replace it immediately to avoid hassle—a practical and time-saving approach.
