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Troubleshooting 3rd brake light issue on 2015 Silverado

CSI1215

By CSI1215
in Troubleshooting & Recalls

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CSI1215 New Member

CSI1215

Posted
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Hey guys I have a 2015 Silverado 1500 that I bought 4 months ago and ever since the 3rd brake light has never worked I’ve checked the bulbs are good no connections are burnt everything looks good I swapped the assembly with another one and still didn’t work.. any advice?

rav3 Senior Enthusiast

rav3

Posted
Posted

Have you checked to see if it gets power when brake is applied?

Have you checked if it has a good ground?

This is the 1st simple check I'd do.

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JimCost2014 Senior Enthusiast

JimCost2014

Posted
Posted

Fuse block, non serviceable relay blows, then whole unit needs to be replaced. That is my guess, had it happen in my 08.

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