If the 3rd brake light fail to operate the switch may be defective contacts points may be burned or pitted replace the switch see picture at o reilly auto parts.
2003 cts third brake light repair.
They recommend a full unit swapp.
All mounting tabs intact.
If we receive a brakelight that is made in taiwan we will send it back and refund minus a 25 dollar restocking fee.
Make sure part is compatible with your vehicle.
See how to change the center brake light cbl on your cadillac cts in the video above.
Or i was told its a cadillac thing and you have to replace it i was also told to send it to rush is th states and he changes them to led for only 82 95.
I have fixed mine myself for under 50 if you need help contact me for further info or on the cadillac forums screenname is gaetano04 105 people found this helpful.
Comes complete as shown.
What we do is replace the original neon lights with high quality led lighting.
Third brake light on the cts from 03 to 07 is and neon incadsecent light powered by a neon transformer.
If the 3rd brake light is working the brake pedal position switch is good.
2003 cadillac cts the third brake light does not come on is there a fuse for just that.
The center brake light sometimes referred to as the third brake light or stoplight on your 2005 cadillac cts lights up when you hit the brake pedal and helps prevent you from being rear ended by the cars behind you.
Don t see a part you need contact us.
2003 2007 oem cadillac cts trunk 3rd brake light third rear tested.
Upgraded replacement this third brake light features integrated led bulbs for greater brightness and longevity application specific made to directly match the look and fit of the original center high mount stop light on certain cadillac cts models from 2003 to 2007 reliable design reengineered to prevent future ballast failures.