Question about 2005 Cadillac CTS

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Hello! I have a 2005 Cadillac CTS-V Both the right and left brake lights stopped working at once. The center brake light on the trunk still works. I was googling to see how to change the bulbs but it appears this is a common problem for this car not getting voltage to the bulbs. Any ideas?

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I assume the solution is the same in a CTS as a CTS-V. Remove the plastic molding facing the rear. There are four plastic screws, Unscrew and lift the spare tire cover. Unscrew plastic screws on carpet covering quarter panels pull back for room to work. Each light assembly has two nuts, remove these and assembly will slide out for easy replacement. Since both lights stopped at once, the fuse may be the issue. The fuse box is under the rear seat cushion, behind the driver. Pull the seat up and forward. Pull levers out on each side of fuse box cover and lift. The diagram is inside the fuse box cover. It'll take a 15V. Note: Please take care in replacing and seat and proper seat belt placement. While you're in the backseat, check all the fuses, there's a second fusebox on the passenger side. Also, check floor behind driver's seat for wetness and water. That could cause a short as well. Good luck!

Posted on Feb 27, 2011

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Posted on Jan 02, 2017

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