The entertainment system screen on my 2013 SV will dim/flicker once or twice and will be accompanied by a noise similar to a clicking sound every time it happens. It happens at complete random and will only click and dim twice. I tried to get a video but was only able to capture the end, where the screen is dimming and going back to normal. The turn signal blocks out the clicking noise unfortunately. Does anyone know what this could be? The seatbelt light on the dash is also on even though I’m buckled in, I have a heavier water bottle in my passenger seat which I’m unsure if it thinks it’s an unbuckled person or if it could signal an electrical issue.

 

Not sure on your stereo issue but yes the water bottle is triggering your seatbelt light. The sensor(s) are located in the middle of the seat to the rear. You can test it by removing the bottle and seeing if it goes out or not.