2015 GMC Sierra Denali 4x4 Blinker Problems

TW80CJ5

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Team,

Good Morning!

I am having intermittent blinker issues with my truck. Yes, I have LED headlights and taillights but this problem has recently arisen.

Sometimes I have front left blinker failure, sometimes left rear blinker failure. It's the same way on the right. I have checked connections and inserted bulb grease to no avail.

Then, sometimes they all work like they are supposed to?

Oh, btw, I did make sure the blinker fluid was full, so we are good there.

Ideas / suggestions
 
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