Every time I use the right turn signal my headlights flash. I’ve tried using it in different ways but the result is almost always the same. How can I fix this?

Passenger headlight blinker works intermittently. The blinker bulb burns when the headlights are activated and when I double lock the car with the fob. When I turn on the blinker, the bulb does not blink. The mirror blinks. The tail blinks. I replaced the bulb. Replaced the headlight wiring harness. Replaced fuses. Cleaned connectors. Cleaned the ground. I know next to nothing about cars. I'm a google mechanic. Please help me with a solution. Also, the front passenger tire pressure sensor has stopped working. I recently had it replaced, so it's very new.

Low beam headlights is not working. All the fuses seam to be fine. Replaced relay ,with no results I checked one bulb that seems to be ok...

Need to know where the fuse us fir the high beam & what fuse to use

My 2007 Suburban was dropping voltage down to 12.3 sometimes. Replaced the alternator and now it’s at 14v all the time except if I turn on the a/c and or the headlight it will drop dow to 12.3z