Red remote control light

Hey, @Minz, we'd be glad to help you answer all your doubts with your remote. You are totally right! When your remote shows a red light, it means it is time to change your batteries. 

Replace the batteries - Red Blinking Light.
Over time, batteries lose their charge, and a message to change the batteries typically appears, and the light will blink red. Low-level battery life may cause sluggish remote commands and prevent you from using Google Assistant. Your remote may change to IR mode, and in some instances, you may need to re-sync the remote once the batteries are replaced. 

Thank you for being a DIRECTV customer. Don't hesitate to contact us if you need anything else.

Danae, DIRECTV Community Specialist