What is the mechanical key starting method for BYD S6?

3 Answers
McParker
07/23/25 5:03pm
BYD S6 mechanical key starting method is as follows: Generally, the lock cylinder is located under the thumb-press area on the driver's side door handle. Open the cover to access it. After entering the vehicle, press the start button with the back of the smart key close to it. Additionally, vehicles with one-button start usually have a sensing area inside - placing the key near this area will still allow the vehicle to start. Extension: The vehicle automatically cuts power within 10 minutes after engine shutdown to prevent excessive battery drain that may cause starting difficulties. Pressing the start button without depressing the brake pedal activates partial power supply. Pressing it twice activates full power supply and initiates the vehicle's self-check procedure, during which window controls become operational.
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LeRafael
08/10/25 12:46pm
The mechanical key starting method for the BYD S6 is quite simple and is mainly used when the smart key runs out of battery or malfunctions. First, locate the keyhole, which is usually found under or inside the driver's door handle—a small cover can be pried open to reveal the keyhole. Gently insert the mechanical key part into the hole and turn it about 90 degrees to the right to unlock the door. Once inside the car, move to the area below the steering wheel or near the center console to find a backup keyhole next to the start button. Insert the key and turn it to the right to start the engine. Remember not to use excessive force to avoid breaking the key. After starting, remove the key and store it properly. As an owner, I have experienced this situation a few times. Keeping the smart key battery charged can reduce such inconveniences, so it's advisable to regularly check if the spare key operates smoothly.
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SanFinn
09/22/25 7:06am
As someone who frequently deals with BYD vehicles, the mechanical key start is a backup solution for the BYD S6. Pull out the metal piece from the smart key, insert it into the door lock cylinder, and turn to unlock. Once inside the car, there's a small hole next to the start button—insert the key, twist it, and the engine will start. Don't underestimate this design; it can handle electronic system failures, ensuring you can drive away safely. I've also seen owners damage the keyhole by applying too much force, leading to higher repair costs—just handle it gently. If the start doesn't work, first check if the key is fully inserted or if the battery is weak and needs replacement.
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