![Drivers flabbergasted by 'mystery' button on rear-view mirror - that only works sometimes - Mirror Online Drivers flabbergasted by 'mystery' button on rear-view mirror - that only works sometimes - Mirror Online](https://i2-prod.mirror.co.uk/incoming/article29414795.ece/ALTERNATES/s615b/0_Car-mirror-with-adaptive-dimming-system.jpg)
Drivers flabbergasted by 'mystery' button on rear-view mirror - that only works sometimes - Mirror Online
![What is this button at the bottom of my rear view mirror? I thought it may be an assist button but the car doesn't phone anyone when I press it, just a What is this button at the bottom of my rear view mirror? I thought it may be an assist button but the car doesn't phone anyone when I press it, just a](https://preview.redd.it/ayhmfi5h14551.jpg?auto=webp&s=e248ab3771502d4343da47411f178478991cbcb5)
What is this button at the bottom of my rear view mirror? I thought it may be an assist button but the car doesn't phone anyone when I press it, just a
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Amazon.com: EWAY Rear View Auto Dimming Mirror with Compass and Temperature & Ultra Bright 4.3 inch LCD Monitor Auto Adjusting Brightness Display - Universal Fit for Most Vehicle Model : Automotive
![Drivers warned cars have a secret button under rear view mirror which could save lives if used correctly Drivers warned cars have a secret button under rear view mirror which could save lives if used correctly](https://images.ladbible.com/resize?type=jpeg&quality=70&width=648&fit=contain&gravity=null&url=https://images.ladbiblegroup.com/v3/assets/bltcd74acc1d0a99f3a/blt3578ac5e2c134a76/64ad70bf9eabda7419f67acd/mirror-warning-tiktok.png)