How to Replace the Key Battery for BYD?
2 Answers
The method to replace the key battery for BYD is as follows: 1. Remove the mechanical key; 2. Along the slot where the mechanical key is stored, forcefully pry open the key's outer shell; 3. Use a blade to remove the battery from the edge gap; 4. After installing the new battery, reassemble the key shell. Taking the BYD S6 as an example, it is a mid-size SUV with body dimensions of: length 4810 mm, width 1855 mm, height 1680 mm, a wheelbase of 2720 mm, and a fuel tank capacity of 72 liters. The BYD S6 is equipped with a 1.5L turbocharged engine, delivering a maximum power of 113 kW at 5200 rpm, paired with a 6-speed manual transmission.
I bought a BYD Song PRO and noticed that when the remote key response slows down, it's time to replace the battery. The first time doing it was a bit nerve-wracking, as I was afraid of damaging the key shell. I looked up tutorials online and found that most BYD keys have a small groove on the back—just gently pry it open with a coin or a flat-head screwdriver. Be careful not to use too much force, or the plastic shell might crack. After removing the old battery, I saw it was a CR2032, a 3V coin cell battery, which can be easily bought at supermarkets or online. When installing the new battery, make sure the positive side faces up and align it with the position of the old one. Snap the cover back on until you hear a click, indicating it's securely locked. Test the lock and unlock functions, and they should immediately return to normal. The whole process takes less than five minutes—cost-effective and convenient. I recommend all car owners regularly check their keys; a shortened remote range is a warning sign—replace the battery early to avoid mid-use failures.
