Help guys, on my 03tls i have the window brake light the wing/trunk brake light and the standard brake lights on the body, my brake lamp warning light on the dash came on the other day and taught i had a burnt bulb, when i check all four bulbs in the tail lights were on, but when applying brakes none of the tails lights show the brightness when the brake is applied, only the window and the wing/trunk lights shows brakes is applied, any suggestions, thanks in advance

 

Brake light filaments burnt out?

 

I agree, remove the suspect bulbs for inspection--or buy the 2 pack of them for 6 bucks at parts stores
I had 1 brake bulb go out- the other followed soon after,,
odd how they get the same wear~

 

Thanks guys after spending hours today going thru all fuses, checking the brake light switch, and other possible suspects, found out there is a brake stop sensor located behind of the driver tail lights, removed the tail light from body, whit box with bout 6 wires, coming out of it, unplugged it and found the green wire going to the bulbs with corrosion, gave it a clean and all brake lights worked, also replaced all bulbs hopefully they can be on the same life pattern now

 

glad you found the problem, i had to replace that white box behind the drivers taillight before that gave me the same symptoms as you described.

 

it could also mean brake fluid is low, keep that in mind

 

What am I missing? Nothing about the brake light bulbs or the bulb sensor is affected by the brake fluid level.