Parking light/ turn signal issue

[Kspinazzola]

So I’ve noticed on my 14 Silverado lt that my front right upper parking light is out. 
When my headlights are on all 3 other bulbs light up but not this one. 
at first I was just gonna replace the bulb but then I realized that when the right turn signal is on the bulb works fine so it’s clearly not burnt out. 
anyone else experience an issue like this? I figure it can’t be the fuse if the bulb is still getting power but I’ll check it anyway when I get home. 

[Locom0tive]

If the parking light and signal light is the same bulb, it's likely a dual-filament where the lower wattage (parking) portion is burnt out. Switch the bulb from the other side to verify if the other side works as normal. If the symptom is gone, replace the bulb, if not, it's something else along the control unit/switch/wiring side.

 

On another note, I had a problem with my signal light intermittently working, bulb was good. Turns out it was overtightened, loosened it 1/4 turn and all is normal so check that contacts are where they should be.