View Full Version : interior/exterior bulb replacement

10-23-12, 10:42 PM
I want to replace all interior and exterior bulbs on my 2010 cts. I was looking a list that breaks down every light there is and what type of bulb it is and what kind of LED someone recommends to replace it with. I was able to find a couple of places that only listed some of the lights but not all of them. I took a look at them on my car and can guess what kind they are but I don't want to be wrong and to waste money. Here is what I came up with so far.

All of these I can find and get suitable replacements from http://www.superbrightleds.com/cat/led-vehicle-replacement-bulbs/vehicle/2010-cadillac-cts-with+halogen+capsule+headlamps-/10-429-50-/

Trunk: 211-2
Parking Light: 2825
Front Side Marker: 194 (looks like a strip of 3 bulbs not a wedge bulb)
License Plate: 2825
Dome Light: 2825
Map Light: PC175

The ones that I can not seem to find specifics on are

Footwells (driver and passenger): Look like regular 194 bulbs to me
Courtesy/Puddle Lights (under all 4 doors): Look like regular 194 bulbs to me

Also, can anyone tell me the specific lengths of all of these bulbs and if any of the oversized ones will fit or not.


10-24-12, 05:07 PM
This is all you need for all the interior lights of the CTS

Im going to put these in the courtesy puddle lights
They might be a bit big but you get the idea. same wedge bulb needed as the first link, just want more side light as oppose the direct straight light