What is the function of the diamond shape on the new 3 Series car key?

1 Answers
DiEmilia
07/24/25 11:53pm
The diamond-shaped button on the new 3 Series car key is for the headlights. In areas with poor lighting, pressing this button can turn on the headlights. Headlight maintenance: Carefully check whether the lights are working properly, such as turn signals, fog lights, tail lights, etc. In addition, also check if the headlight beam direction is misaligned, if there is sufficient brightness, and the sealing condition of the headlights to identify issues promptly and avoid unexpected situations. BMW car key functions: For BMW keys, holding down the unlock button can simultaneously open all four windows and the sunroof. If the unlock button is released before the opening is complete, the process will stop. Holding down the lock button can simultaneously close all four windows, the sunroof, and the exterior rearview mirrors.
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