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Rear Brake lights not working after pulling trailer
5 messages, Last post on Aug 15, 2011 at 8:10 AM
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What is this discussion about? Chevrolet TrailBlazer, Chevrolet TrailBlazer EXT, SUV
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#1 of 5 Rear Brake lights not working after pulling trailer by gpateman
Aug 12, 2011 (7:06 am)
Hi. Both my brake lights are not working on my 2006 Trailblazer. This seemed to happen after using a trailer with the light adaptor plug-in (to hook up the trailer lights to on my trailblazer). This time frame may be a coincidence though. I've check the fuses under the hood and under my passenger side back seat and can't seem to find blown fuses. Where do I look from here?
- burdawg (Aug 12, 2011 7:09 am)
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#2 of 5 Re: Rear Brake lights not working after pulling trailer [gpateman] by burdawg
Aug 12, 2011 (7:09 am)
Replying to: gpateman (Aug 12, 2011 7:06 am)
See if the brake light switch has failed.
- gpateman (Aug 12, 2011 7:21 am)
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#3 of 5 Re: Rear Brake lights not working after pulling trailer [burdawg] by gpateman
Aug 12, 2011 (7:21 am)
Replying to: burdawg (Aug 12, 2011 7:09 am)
Where and how do I do that?
- burdawg (Aug 12, 2011 11:54 am)
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#4 of 5 Re: Rear Brake lights not working after pulling trailer [gpateman] by burdawg
Aug 12, 2011 (11:54 am)
Replying to: gpateman (Aug 12, 2011 7:21 am)
Have a look at this: http://www.realworldautomotive.com/forums/t1423-chevrolet-trailblazer-brake-ligh- t-switch-replacement.html
- gpateman (Aug 15, 2011 8:10 am)
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#5 of 5 Re: Rear Brake lights not working after pulling trailer [burdawg] by gpateman
Aug 15, 2011 (8:10 am)
Replying to: burdawg (Aug 12, 2011 11:54 am)
So. Here's how it played out. The tail lights were both not working but the rear upper hatch light was (so I was guessing something more than the brake light switch).. my buddies got the electr tester out and we had power to BOTH tail lights when pressing the brake pedal 
We then said "holy crap, it could be the lightbulbs........switched them and it was"......Lesson learned is check the easiest (even though I thought there was no chance that they burnt out at the same time) solution first...... thanks guys.
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