I have a 2017 Sierra 1500 SLE 5.3L that the driver's side front turn signal recently stopped working. My first step was to replace the bulb, however that did not fix the issue. The bulb will not turn on when I set the alarm or when I turn the hazards on either. I am getting the "Left Front Turn Indicator Failure" message. My battery was replaced three days ago. Is there a way to diagnose this issue without having to take it in for service and likely spending way more than a faulty turn signal should cost? Any ideas on where to start troubleshooting this issue would be much appreciated! If there are a few things I can try on my own before taking it in, I'd definitely be glad to try.
