Left turn signal won't quit
 

Left turn signal on my 2015 won't quit but when I turn on the right signal, both sides blink as if the emergency button is press.
I removed the cover for the steering column and unplugged the white connector to the turn signal switch. The left side continue to turn but turning right side signal no longer worked. Is it the problem with the turn signal combination switch?

Thanks

Probably a switch issue. Disconnect all wires into it, spray those connectors with electrical contact cleaner spray, reconnect them, and see if that makes any difference.

I could not log in my previous account so I am replying from here.
I saw others have the same exact issue in a facebook group after heavy rain.

Clear your sunroof drains if you suspect rain is causing your problem. Always a good idea to clear those drains on an annual basis.

did that on sunday, wait to see if the turn signal problem will go away, so far not yet. The Blind spot sensor light stays on even after BSM is off too.