Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, License Plate and Reverse Light replacement in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; I did this on my 2005 CTS
I didn't realize how much of a pain it would be to replace ...
I did this on my 2005 CTS
I didn't realize how much of a pain it would be to replace my license plate lights until I put hands on and figured it out myself. Here is the step by step for you:
What you will need:
-10mm deep socket/ratchet
(if you don't have the deep socket, which I didn't, a crescent wrench and needle nose pliers will work)
-Flat head screwdriver (for plastic clips)
-Sylvania bulb Part Number 2825 (License Plate)
-Sylvania bulb Part Number 3157 (Reverse Lights)
1. Open trunk and locate 8 plastic clips.
2. Remove a 8 clips
3. Remove the 8 nuts from the inside of the trunk
4. Pop out license plate/reverse light section from the outside of the car
5. Which ever light you need to change, turn that socket a 1/4 to the left and replace bulb
6. Repeat step in reverse to put together
The reverse lights are noted by the blue arrows in my pictures
For some reason my LP LEDS go out once a month so I went back to standard halogen style and havent had a problem. Also there are 4 extra bolts to take off the rear fascia on the 05 verses the 03? Weird.
I replaced mine with SMD style as recommended by Superbright.
I used the WLED-WHP5's. They seem to have a resistor built into them. If they are too bright for my liking I may change them in the spring.
I like the colour of Cool Blue but these only came in Natural White.
I just took out the bulbs in my license plate lights and got one of those stick on LED strips that has a row of LEDS. I had to drill a small hole on the under side of where the license plate goes but so far I haven't had any trouble with it. been there over a year