Having problems with your 2007 GMC Yukon XL Denali ?

Third Brake Light Problem

\015 I have a 2004 GMC Denali XL and the 3rd brake light has not worked for a while. I ordered a new one and installed it...but it doesn't work either. I checked the main fuse and its OK. I'm suspecting its not the light at all. WHAT ELSE SHOULD I CHECK???\015\012Jeff\015 Posted / edited by AnonymousUser on : 19-03-2018

Answers :

I received your 3rd brake light flash controller-fully adjustable ez fit kit. installed on my 2002 gmc sierra, power coming into box, good ground and unit is not working. third brake light works good with kit removed. any help would be appreciated. thank you for your time.
Repair Help & Product Troubleshooting for 2007 GMC Yukon XL Denali

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