What are the reasons why the BYD S6 suddenly cannot detect the key?
2 Answers
The reasons why the BYD S6 suddenly cannot detect the key are: 1. The key is placed in the wrong position; 2. Insufficient battery power of the key; 3. The key case causes weak signal or shielding; 4. There is a problem with the key chip, resulting in poor or no signal transmission; 5. The in-car oscillator itself or related faults cause the failure to form an effective electronic oscillation area, thereby failing to scan and recognize the key. The BYD S6 has a body length, width, and height of 4810mm, 1855mm, and 1680mm respectively, a wheelbase of 2720mm, a 6-speed manual transmission, and a 5-door, 5-seat SUV body type.
I've encountered the issue of the BYD S6 not detecting the key several times. The most basic cause is a dead key fob battery, and replacing the coin cell usually solves it—just make sure to use the correct type, as CR2032 batteries are commonly used. Environmental factors also play a role; strong magnetic fields or high-power electrical devices nearby can interfere with the signal. I once had issues when keeping my phone and key together. Physical damage or moisture affecting the key's chip is also common, especially with older keys. Problems with the car's receiver module are more troublesome—dust buildup near the central console can cause malfunctions, or the system may require key re-pairing after a full power reset. Once, a repair technician found that the anti-theft system software needed an update, requiring a computer reflash. Such faults prevent starting, so if detected, avoid forcing it. Try a spare key or manual start as a temporary fix, and don’t delay proper diagnostics and repairs.
