[RayVoy]

The TB taillights only light up for brakes on the top and for turns on the bottom....they are not quad tails unless you modify them.

The envoy lights are the same (but different). There is only one brake lamp per side.
Without going out to check my truck, I think the brake is the middle bulb.

 

[RayVoy]

WOOLUF1952 :thx for checking

 

[RayVoy]

02 Envoy lower brake lights don't work, center one does, bulbs and fuses look good, any suggestions?

Well, I just read your post, you let us go down the wrong trail. You should have said, my brake lights don't work, the centre one is ok.

But I also see that you have never checked back to see if we were paying attention, or, if maybe we were smart enough to help. Good luck with your problem.

 

[RayVoy]

:thx for updating the thread.