I have a 2006 Chevy Trailblazer LS with the 4.2l motor. I've lost all 3 cigarette lighters at once (2 in front, 1 in back).

I checked fuse #13 in the fuse box under the hood. It appeared to be fine but I put a new one in anyway, didn't make
a difference.

I found the "under the rear seat" fuse box but can't find anything in the diagram that seems to apply to the cigarette
lighters.

Anyone have any idea why all -3- lighters would go out at once?

Thanks.

 

I would check all the fuses. There are some in the inside fuse box marked auxiliary. might be one of them.

 

I got it, thanks much.

Turned out it was fuse #46 in the fuse box under the rear seat (drivers' side).

It's auxiliary power 1, marked as "AUX". Like fuse #13 in the under the hood
fuse box, it's 20 amps as well.

Thanks again!

 

Glad you got it fixed!