Solutions for BYD Not Detecting Smart Key
2 Answers
Solutions for BYD not detecting the smart key include using the mechanical key to open the car door, placing the key near the start button, and waiting for the button indicator to turn green. Common reasons why BYD cannot detect the key include the following: 1. Low battery in the key: For example, the battery has not been replaced for a long time. Solution: Replace the battery. Here is a simple way to check: If the red indicator light on the remote key flashes when you press the button, it means the key battery is functioning normally. 2. Key malfunction: For example, the control unit of the key is damaged. Solution: Get a new key. 3. Signal interference near the parking area: You can first use the mechanical key to drive the car to another location and try again. If it works, it indicates that the remote key failure was caused by severe signal interference. 4. Vehicle-related issues: It could be a problem with the fuse box or the vehicle's central control system. Some owners have reported needing to replace the high-frequency receiver. If the issue is related to the vehicle itself, it is necessary to contact a 4S store or a professional auto repair shop for assistance from experts.
I've been driving a BYD Tang series for almost four years and have encountered the key detection failure issue several times. The main reason is usually a dead key fob battery - just spend ten yuan to buy a new CR2032 battery (available at supermarkets) and replace it. Sometimes signal interference from phones or other items in your bag can cause this, so try moving the key closer to the door or placing it on the center console. Low car battery voltage can also affect the system - starting the engine to charge or jump-starting usually solves it. Avoid prolonged exposure to high temperatures or humidity (like parking in direct sunlight during summer). If the system freezes, use the mechanical key to enter, then press the start button multiple times while braking to reboot. Make it a habit to check the key battery every six months to prevent minor issues from becoming major problems. If all else fails, visit a 4S shop to check for software updates or antenna issues - it's cost-effective and worry-free.
