
First, press the button on the BYD car key, then pull out the mechanical key. Next, insert a screwdriver along the gap of the key shell to pry open the car key. Pressing the button once executes the action once. If the button is held down, the action will not repeat. To execute again, release and press the button once more. Pressing the "LOCK" button will cause all door lock motors to perform a locking action simultaneously, and the turn signal will flash once. When the vehicle is in anti-theft mode, pressing the "LOCK" button will produce a long beep and the turn signal will flash. Pressing it again will re-enter the vehicle search mode.

I remember disassembling a BYD car key is quite simple, I've done it a few times myself, mainly to replace the battery. Usually, there's a small gap on the side of the key, and you can gently pry it open with a fingernail or a bank card. Avoid using too sharp tools to prevent scratching the casing. Most BYD remote keys are designed with plastic clips, so once you pry one side open, the entire casing can be separated. Inside, there's usually a coin battery, like the CR2032 model. After replacing the battery, align the clips and press them back together to finish. However, keys for different models like the Tang or Song might be slightly different, so it's best to check the owner's manual to confirm the structure before disassembling. After reassembly, remember to check if the buttons are responsive to prevent remote failure due to improper assembly. If you disassemble frequently, keeping the key dry can extend its lifespan. In short, doing it yourself saves time and money, but be careful not to lose any small parts.

I would recommend using a more professional method for disassembly, such as a plastic pry tool or a small screwdriver, ensuring the tool is non-conductive to avoid damaging the internal circuits. The gaps in BYD keys are usually along the edges. First, gently press the latch area to loosen the casing, then slowly pry it open—avoid pulling hard to prevent internal wiring from disconnecting. Components visible after opening include the battery holder and microchip, with the CR2032 battery being common in most BYD models. When replacing the battery, note the correct polarity, and wipe the contacts with a soft cloth before reassembly to prevent oxidation. If the key is a push-button type rather than a folding one, the disassembly process might be simpler. Regularly replace the battery approximately every two years to avoid sudden failure affecting your ability to drive. If you lack the necessary tools, purchasing a kit from an auto parts store might be more convenient.

Before disassembling a BYD car key, it's advisable for beginners to first refer to the vehicle manual to avoid causing damage by improper handling. I once tried it and nearly cracked the clip, but later learned some techniques at the 4S shop. A simple method is to observe the edges of the key, gently pry the gap, and press with the fingertip to open it slowly. If it doesn't come apart easily, don't force it—some smart models like the Han have more tightly designed keys, so it's best to seek professional repair. This saves time and effort and prevents costly circuit repairs. After replacing the key battery, remember to test the remote control range.

The key to disassembling a BYD key fob lies in applying some finesse. As someone who frequently DIYs car parts, I start by gently prying at the seam using a fingernail or plastic spudger. Once the casing separates, you'll see internal components including the battery and button module. When removing the old battery, note its orientation to avoid reversed assembly. Most BYD models use CR2032 batteries – after replacement, clean the contacts and realign the clips before reassembly. Work methodically with light, swift motions to prevent solder joint damage. Regular DIYers may keep a repair toolkit handy for efficiency. Key fob longevity depends on usage habits – avoiding drops preserves clip durability.


