How to Start a BYD F3 When the Remote Key Fails

[DeMarley]

Open the driver's side door of the BYD F3. Depress the brake pedal of the BYD F3 to prepare for engine start-up. Press the one-touch start button of the BYD F3. All the instrument lights of the BYD F3 will illuminate, indicating that the engine has started. Hold down the lock button on the BYD F3 driver's door for more than 10 seconds to complete the matching process.

[AllieDella]

As a long-time owner of the BYD F3, I've encountered several instances where the remote key fob stopped working. The most straightforward solution is to locate the hidden mechanical key within the remote. It's usually embedded on the side, and I can easily pull it out with a gentle tug. Use this small key to unlock the driver's side door lock. Once inside, don't rush to start the car—first check if the vehicle's power supply is functioning normally. There's a standard keyhole beneath the steering wheel; simply insert the key and turn it clockwise to start the engine. This method is almost 100% effective because I always keep spare batteries on hand. If the remote fails, it's mostly due to a drained battery, and replacing it takes just a few minutes. Additionally, I recommend not keeping the key fob and your phone together, as signal interference can occasionally cause malfunctions. Regularly check the battery life—replacing it every six months is the safest practice to avoid panic situations outdoors.

[SerenityLynn]

Last time I went on an outing in my BYD F3, the remote key suddenly stopped working. I was flustered but quickly resolved the issue. I simply popped out the mechanical part of the key—a small metal piece—inserted it into the door lock cylinder, turned it, and the door opened. Once inside the car, I located the key slot near the ignition switch, inserted the entire key, and gave it a firm twist to start the engine. The whole process was super simple and didn't require any professional tools. Now, I replace the key battery every three months because relying on the remote function for too long can make you overlook this. If the key fails in a remote area, it's best to pull over safely to operate it and avoid danger. If you're really unsure, you can carry a spare key when traveling, and buying a new battery is also very inexpensive.

[Thomas]

Don't panic when the remote key fails. The solution for BYD F3 is quite practical: first use the small mechanical tab on the key to open the car door, then insert the physical key to start the engine. From my experience, replacing the battery usually restores the remote function. It's simple and effective.