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What are the hidden functions of the BYD L3 key?

3 Answers

Mandy

07/29/25 1:17am

BYD L3 car key has the following hidden functions: 1. Close windows after turning off the engine: After parking and turning off the engine, if you forget to close the windows, simply long-press the lock button on the remote key to close all windows. 2. Open only the driver's door: Press the unlock button once to open only the driver's door; press twice to open all four doors. Some cars may not have this setting by default, but you can consult a 4S dealership to enable this feature. 3. Find your car in a parking lot: There is a red horn-shaped button on the key. Pressing this button after parking will make the car honk loudly from a distance, serving both as a way to locate your car and as an emergency signal.

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Sanders

08/12/25 11:03am

I've been driving a BYD L3 for several years and discovered some practical hidden features in the key that aren't always clearly explained in the manual. For example, holding down the lock button for about three seconds automatically closes all windows and the sunroof, which is especially handy after parking in the rain—saving time and keeping you dry. Holding the unlock button rolls down the windows to ventilate the car, making it much more comfortable by cooling it down before you even get in during summer. Pressing the trunk button opens the lid directly, making it super convenient to grab things. Also, the key battery typically needs replacing every two years; an inexpensive coin cell does the trick, avoiding any frustrating malfunctions. These hidden features really enhance the daily driving experience, making the car feel more thoughtful and intelligent once you learn them.

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StSabrina

10/02/25 2:12am

I usually enjoy tinkering with car electronics, and the hidden features of the BYD L3 key are worth discussing. Long-pressing specific buttons for window control is standard, such as holding the lock button to trigger one-touch window closing or pressing the unlock button longer to automatically lower the windows. The key has a built-in LED light to indicate status, flashing red when the battery is low to remind you to replace it. If functions malfunction, try re-pairing: first close all doors, then press the key combination to enter learning mode, easily fixing disconnection issues. These tips make the key more flexible and durable, especially with extended battery life for added convenience.

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