Woman's TikTok video reveals a hidden car key button for rolling up windows without turning engine on.

Woman's viral TikTok video reveals little-known car key button that allows users to roll up windows even when car is turned off, saving time in the summer. Shannon Mitchell shared the hidden feature on her @shannon_mitch TikTok account, and many were unaware of its existence. By pressing the car's lock button, electric windows can be controlled without having to turn the engine back on.