3rd Brake light

[Tonyrodz]

On my 03 Tahoe the 3rd brake light isn't working. I tested the plug and it does get power. I took off the assembly to check bulbs but I couldn't see a way of opening it up. Is there a way to open the brake light assembly to change bulbs? It can't be sealed. And I find it strange that all the lights quit working. I got a ticket the other day for failure to maintain by the cops! Can anyone help me with this? I don't have to buy the entire assembly from the dealer do I?

 

[Rivieraracing]

Those should be LED's in the light, so if you have power to the plug of the 3rd brake light, either you tear it open and find the bad connection or have to buy a new light!

 

[Tonyrodz]

How could you tear it open without damaging it? I've been looking on ebay and it seems no one sells used parts anymore!

 

[Rivieraracing]

I don't know how you could take it apart without breaking it, I haven't run into the problem you are having!! I know some guys on here that have bought aftermarket versions of it and liked them, maybe one of them will chime in for you!! At least you know you have power to the plug, that alone usually gets folks all confused!!

 

[Midgetclown]

I believe those are sealed lights just like a headlight. The easiest way to open it would be to preheat your oven to i think 300. The turn the oven off and throw the light in. Let it sit there for 5-10 minutes checking it constantly to make sure it still good in there. Then after you take it out(with gloves) take two small flathead screwdrivers and pry the lense off. Putting it in the oven heats up the factory glue enabling you to open it. Much easier to buy a new one IMHO.

---------- Post added at 05:29 PM ---------- Previous post was at 05:27 PM ----------

Heres a link to 2003 tahoe thrid brake lights on ebay.

http://www.ebay.com/sch/i.html?_sac...Car_Truck_Parts_Accessories&Model%20Year=2003

 

[Skizzot]

I believe those are sealed lights just like a headlight. The easiest way to open it would be to preheat your oven to i think 300. The turn the oven off and throw the light in. Let it sit there for 5-10 minutes checking it constantly to make sure it still good in there. Then after you take it out(with gloves) take two small flathead screwdrivers and pry the lense off. Putting it in the oven heats up the factory glue enabling you to open it. Much easier to buy a new one IMHO.

---------- Post added at 05:29 PM ---------- Previous post was at 05:27 PM ----------

Heres a link to 2003 tahoe thrid brake lights on ebay.

http://www.ebay.com/sch/i.html?_sac...Car_Truck_Parts_Accessories&Model%20Year=2003

I've done this to headlights before and it works great. You will have to reseal the lens so buy a tube of sealant or you'll have water in it next and certainly be buying a new one.

My high mount doesn't work and I haven't bothered taking it apart. I get 12v at the connector but no light. When I hook up jumpers to the LED it will only power on at 18v+. I'm assuming that there's a circuit board pushing the LEDs. Post pics once you get it apart so I can decide if it's worth my time.

 

[GeneralNoobzor]

Unless you are good with soldering etc. I wouldn't open it. You should just go on eBay and my another one. Just eBay "03 Tahoe 3rd brake light" one will pop up... They are about $50.00. Also you shouldn't get in trouble for not having a working 3rd brake light. If your other brake lights worked then it should have been fine. Fight the ticket, and F*ck the police.

 

[Danzigman]

Did you figure it out? Mine isn't working either. The fuse is fine.

 

[GeneralNoobzor]

The unit itself is bad. It's all LEDs, it would cost more to fix it then to replace it. Get a new one.

 

[xDan]

I tried opening it up but whatever glue they used won't release at even 300°F, which is too hot. I softened the housing too much. 270°F is enough to not melt them and release the butyl but these 3rd brake lights are sealed with an epoxy. You would have to cut it open...

 

[MCAT069]

Mine when out on the 04 Suburban and I bought a new one off Amazon for 30 bucks shipped. I thought it was well worth not having to mess with a "non-serviceable" part as the local stealership put it.

 

[chrmbly]

Funny, I just found out mine's out too. I ordered the Dorman one on Amazon and chipped in the extra $3.70 or whatever for the square trade 4 year warranty if it happens to fail again.

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