: The COMPLETE, CORRECT, STS Interior/Exterior Light Bulb Application Guide



K STS
08-01-09, 05:49 PM
After MANY weeks of searching, I finally have compiled 100% correct information for every light in the STS. Here it is:

Headlight (without HID) :
▬▬
|O | -- 9005
|O | -- H11
| o| -- 192/194
▬▬

Front Running Light / Turn Signal:

▬▬
| | -- 3757
▬▬

Fog Light:

▬▬
|O| -- H3-55W
▬▬

2 Front Side Marker - 194/2825
2 Rear Side Marker - 194/2825
2 Backup Lights - 3157
2 License Plate Lights - 194/2825
2 Front Overhead Dome Lights and 2 Rear Overhead Dome Lights - 194/2858
2 Under Dash Lights by your feet - 194/2825
2 Bottom of Door when you open - 906

This should be every light in the car. I will have my LED conversion finished later this week. Please sticky this, or put it in the FAQ and link to it. Thanks!

K STS
08-01-09, 05:49 PM
now I need -YOUR- help.

I want to put Amber/Yellow LEDs inside the front turnsignal/running lights, but I dont want my blinkers to go crazy when I hit the turn signals. Any ideas?

STE_6000
08-01-09, 05:57 PM
just get led bulbs, they will just turn on and off quick, but no quicker in flash since it get pulses. so a standard led 3757 bulb will do it, and u can get white, yellow, blue what not.

K STS
08-01-09, 06:08 PM
How come when I put a 3757 turn signal bulb in my mustang, the turn signals went hyper quick?

Platinum06
08-01-09, 10:21 PM
Let us know how the interior lights work out....I'm looking into doing them in cool white.
Thanks for the info

Maximln
08-01-09, 10:40 PM
I have to replace a couple of lights & I'm a little confused. One of them you have marked as "192/194" and the other one as "194/2825." Is that designating 2 different bulbs for each or is that 1? For example, for the front side marker lights, do I say I need a 194 bulb, a 2825 bulb or a 194/2825 bulb.

Thanks,

Max

K STS
08-02-09, 02:30 AM
The items with slashes are the recommended bulbs for that application. If it says "192/194" then a 192 or 194 bulb would be the best match for that applciation. If they say "194/2825" you can use 194 or 2825. I know this is confusing since 192/194/2825 are all technically interchangeable, but the sizes mentioned are either what was found from other members here on the forum, or other members on cardomain or locally.

STE_6000
08-02-09, 07:15 AM
not sure about that, but i used led turn signals in my sports car and it worked normally. so you got me, not sue why your mustang was different.

Jesda
08-02-09, 07:54 AM
FAQ updated. Thank you!!

deucedude2003
08-02-09, 02:33 PM
Good job, but just a couple points of interest;
My car ('06STS4) has a W5W or 2827 bulb for the small light in the corner of the headlamp assy. While it appears to be a 192/194 it is quite a different bulb. Unlike a 192/194 the W5W or 2827 is a Halogen, so if you were to replace just one bulb with say a 192/194 it will be slightly dimmer and not the same color temp as the other. People may want to check which is in theirs prior to replacing just one bulb so as to get a perfect match. Also the backup light bulb you have listed contradicts my manual. In the manual it lists it as a 3157K the K meaning it uses a Krypton bulb, not the regular bulb.
I have found over the years that while the bulb may fit the socket, the properties of the bulb can be vastly different.
Cheers and thanks!

STE_6000
08-02-09, 03:39 PM
I posted a list from Sylvania's website that shows the 3157K bulbs ur talking about. if you need to know what you got, go to the company that makes the bulbs for almost all the cars that are sold in the USA. Sylvania

next2pool
08-02-09, 08:28 PM
not sure about that, but i used led turn signals in my sports car and it worked normally. so you got me, not sue why your mustang was different.

A lot of that depends on your flasher--electronic or "mechanical". By law, they have to indicate a light bulb that is out, but they use different methods--esp with body computers.

Maximln
08-02-09, 10:14 PM
Of course, I decide to try to change it on Sunday & the small marker bulb in the headlamp assembly is not available anywhere. It wasn't so easy to change without removing the bumper. I ended up snapping off the clips that hold the lamp in place. What do you think would be the best way to secure it back?

Thanks,

Max

next2pool
08-02-09, 11:29 PM
Of course, I decide to try to change it on Sunday & the small marker bulb in the headlamp assembly is not available anywhere. It wasn't so easy to change without removing the bumper. I ended up snapping off the clips that hold the lamp in place. What do you think would be the best way to secure it back?

Thanks,

Max

That's one of the items on my list for when I take it in tomorrow. I work right around the corner from the dealer, so unless the need it ovenight, I'll take the shuttle

caddycts20
09-14-09, 11:57 PM
does anyone know how many k's the stock hids have? i just placed 6000k on my fogs and it doesnt match my headlights im guessing to put in 4300k in my fogs. i dislike that bright blue that blinds drivers

STE_6000
09-15-09, 12:33 AM
the blues have nothing to do with blinding drives, one is a color the other is bad aiming. most ppl that put them on either don't aim them, or they are not designed to cut off at the trunk lids like all 98+ vehicals have.

caddycts20
09-15-09, 12:47 AM
yea i get you thank for the advice im going to install 4300k on my fogs tomorrow hopefully it matches my headlights

STE_6000
09-15-09, 08:59 AM
only problem with after markets they might still be color different depending on the companies design them, 4300K might be closer but it depends on how they were made by the company you by from. best bet is to replace the mains and fogs with the same company bulbs to get the best match.

M.A.C
05-15-10, 11:48 PM
Has anyone replaced the fog lights (the lights below the amber parking lights) with something different than OEM. The left side bulb blew out and I'm thinking about upgrading both to something brighter.

Is this a bad idea?

LAC_STS
05-16-10, 12:54 AM
Yea. A bunch of members have done HIDs and some have done Silverstars or some other type of premium halogen bulbs. Try searching. You will be able to find quite a few threads.

Platinum06
05-16-10, 01:46 AM
I did the SilverStars...slighty better than stock.

AnthonyS
08-18-11, 02:56 PM
Resurrecting an old thread for a couple questions. In the original post it says H3-55W for our fogs, when ordering HIDs will the 55w be too hot for such a small space? I'm planning on changing headlights soon should I get fogs as well since I will already have the bumper off or are the fogs easy to access with the bumper on?

daykeys
08-18-11, 06:13 PM
Sweet! this was just what I needed. I was about to post a thread asking about this but now I dont need to!

AnthonyS
08-18-11, 08:10 PM
Haha, I was gonna do the same, had to do some deep searching for this! =)

Subsailor613
08-18-11, 08:59 PM
For the Fogs, 55W is NOT too much for them, That is a factory size.
OOPS, You were asking about HID's 55 W, Sorry !
I am contemplating 100 W, NOw I am worried !
Good Luck !

AnthonyS
08-18-11, 10:23 PM
For the Fogs, 55W is NOT too much for them, That is a factory size.
OOPS, You were asking about HID's 55 W, Sorry !
I am contemplating 100 W, NOw I am worried !
Good Luck !

Yeah, I don't want to end up melting the housing because they're too hot. Maybe I'll stick with 35w 6k bulbs for the fogs just to be safe.

deucedude2003
08-19-11, 04:43 AM
To answer; you can do the fogs without bumper facia removal, its pretty easy.
And, just for the record, THAT IS NOT the Complete or Correct bulb guide, its way off!!!


Resurrecting an old thread for a couple questions. In the original post it says H3-55W for our fogs, when ordering HIDs will the 55w be too hot for such a small space? I'm planning on changing headlights soon should I get fogs as well since I will already have the bumper off or are the fogs easy to access with the bumper on?

AnthonyS
08-19-11, 03:02 PM
To answer; you can do the fogs without bumper facia removal, its pretty easy.
And, just for the record, THAT IS NOT the Complete or Correct bulb guide, its way off!!!

Thanks for the reply Deuce. Now Im kinda worried about ordering bulb types now, I have an 07 sts-v. Maybe I'll research bulb types a little further before committing to a purchase.

EChas3
08-19-11, 11:09 PM
I'd stick with the OEM bulbs. LED's may flicker when dimming.

AnthonyS
08-20-11, 01:47 AM
I'd stick with the OEM bulbs. LED's may flicker when dimming.

I'm looking to replace with HID kits not LED, my little parking bulb went out I figure if I'm gonna dismantle the front of the car, might as well change all of them now.

deucedude2003
08-20-11, 10:18 AM
Just as a note; I found it easier to "peel" back each respective side to remove the headlight housing assy., instead of removing the entire facia. One side at a time as it were...
Good Luck!


I'm looking to replace with HID kits not LED, my little parking bulb went out I figure if I'm gonna dismantle the front of the car, might as well change all of them now.

EChas3
08-21-11, 06:17 PM
I'd stick with the OEM bulbs. LED's may flicker when dimming. Note: I'm referring to interior lighting dimming on exit.

Thedippa
11-21-11, 11:32 AM
What about the lights on the side of the car by the doors?

nathanjax
11-21-11, 06:57 PM
What about the lights on the side of the car by the doors?

194's

ddalder
11-23-11, 02:49 AM
194's
Keep in mind this (may) depend on the model year. The 2008 (not sure about how many, if any prior years) is a clear lens with a clear bulb that illuminates amber. Not sure what the number is, but I suspect it may be a dealer or specialty only bulb.

nathanjax
11-23-11, 03:15 AM
Keep in mind this (may) depend on the model year. The 2008 (not sure about how many, if any prior years) is a clear lens with a clear bulb that illuminates amber. Not sure what the number is, but I suspect it may be a dealer or specialty only bulb.

194A = amber

194= clear (white)

clear bulbs don't illuminate amber. Some bulbs with have a coating over them to appear chrome, and that will illuminate amber like this...

http://www.amazon.com/Pilot-XC-194A-Xenon-Chrome-Coated/dp/B001UG0OR2

ddalder
11-23-11, 11:24 AM
194A = amber

194= clear (white)

clear bulbs don't illuminate amber. Some bulbs with have a coating over them to appear chrome, and that will illuminate amber like this...

http://www.amazon.com/Pilot-XC-194A-Xenon-Chrome-Coated/dp/B001UG0OR2
I had one of my bulbs out. It does not have an amber coating on it like the 194A. It did not look to have any sort of chrome coating and appeared perfectly clear like every other regular 194 I've seen for the past 30 years (perhaps very slightly larger).

According to my GM dealer, it is not a 194, it's a W5WLL (AC Delco No., which is often the standard industry number), GM P/N: 1999382. This isn't unlike the small position lamp bulb in the headlight housing (also a variation of the W5W bulb) that has a blue coating on it, but doesn't illuminate that colour.

EChas3
11-23-11, 10:23 PM
The blue tint bulb is only for HID-equipped cars; a pretty good match, too!

eatyoursandwich
02-06-12, 05:31 PM
What are the bulb sizes for HID-equipped models, specifically, 2007?

D1S? D2S? Want the low-beams, high-beams, and fogs to match as best as possible. Probably going to go with 5000K for all 3.

EChas3
02-06-12, 08:49 PM
Only the low-beams are HID, by design. HID fogs make some sense but high-beams probably shouldn't be HID's. See "Flash to Pass" thread.

eatyoursandwich
02-07-12, 12:36 PM
Only the low-beams are HID, by design. HID fogs make some sense but high-beams probably shouldn't be HID's. See "Flash to Pass" thread.

Cheers!

eatyoursandwich
02-09-12, 11:48 AM
Sorry everyone; another noob question I couldn't find the answer to. Again, I'm used to cars that have ECU's that would detect and throw a code for even the most minute issues.

That being said, when swapping out the license plate lights to 2825 LED's, since the LED's draw less voltage than the OEM bulbs, would the computer not recognize this as a "bulb out" error and trigger the "bulb out" light on the dash?

ddalder
02-09-12, 10:35 PM
The car doesn't have a bulb out lamp on the dash. I had licence plate lamps out when I first bought my car and no message. Looking through the schematics, I don't believe this functionality is incorporated in the STS (at least 2005+).

eatyoursandwich
02-13-12, 05:56 PM
I guess I should've read more before ordering the damn bulbs.

How do you know if your car is equipped with HID (D1S) low beams or the standard (H11) halogens?

Are any 2007 STS models factory equipped with HID low beams?

ddalder
02-13-12, 07:15 PM
The easiest is to look between the headlamp assembly and the grille at the fascia/bumper cover. If there is a little square cover, these are for headlamp washers and you have HID's. There will be one for each headlamp. No headlamp washers, no HID's.

Lots of 07's have HID's. I'd have say they are more common than not.

EChas3
02-13-12, 09:58 PM
I'd say it's easiest to check for headlight washers. If you have the little cutouts near the headlights, you have factory HID low beams.

RPO Code TT6.

DD beat my draw.

eatyoursandwich
02-14-12, 04:04 PM
Thanks again guys!! Guess I'll start looking into retrofits or if it's even worth it.

waldo5
03-23-12, 03:45 AM
I need some help please? I changed my head lights (http://www.cadillacforums.com/forums/#) no problem, but when i went to change my front marker light I could not get the socket back in I was playing
with it for 2 hours is there a trick on putting the socket back in it just won't stay on plaese help Eddie. I left then out for now? Thanks or call me 516 670-4157 I have 06 STS

ddalder
03-23-12, 03:48 AM
Are you talking about the small bulb in the corner of the headlamp assembly? If so, the tabs on the housing the socket twists into are notorious for breaking. Have a very close look.

eatyoursandwich
03-23-12, 10:54 AM
I need some help please? I changed my head lights (http://www.cadillacforums.com/forums/#) no problem, but when i went to change my front marker light I could not get the socket back in I was playing
with it for 2 hours is there a trick on putting the socket back in it just won't stay on plaese help Eddie. I left then out for now? Thanks or call me 516 670-4157 I have 06 STS

Whoa buddy. Just relax. There are 2 very very very tiny plastic tabs that hold that socket in place. If you don't turn and pull it out exactly right, you will break the tabs and not even know it. I did the same thing. Just use a bead of silicone, or even super glue on the edge of the socket housing and hold them until the substance you use, dries.

Trust me, after the silicone on mine dried, these sockets will not be going anywhere without a heat gun.

Mullah88
11-06-12, 12:04 AM
sorry for resurrecting another old thread (rather than making a new one) will these bulbs work for the sts? especially the driver and passenger under dash floor lights (bulbs?)

http://i3.photobucket.com/albums/y70/andrew_Schenk/LED%20SAP%20MOD/under%20dash/CIMG0998.jpg?t=1265572336

this is from the CTS forum

http://www.cadillacforums.com/forums/cadillac-cts-first-generation-forum-2003/191738-led-swap-diy-tutorial-how-lots.html

1BadCadSTS
11-06-12, 12:08 AM
They use a standard 194 bulb.

DarkMingBlueSTS
11-06-12, 12:15 AM
All interior bulbs are 194

Mullah88
11-06-12, 12:16 AM
thank you blue...including the vanity mirror lights?

1BadCadSTS
11-06-12, 12:18 AM
No. Mirrors use a mini festoon.

DarkMingBlueSTS
11-06-12, 12:19 AM
thank you blue...including the vanity mirror lights?

No those are festoon style and I haven't looked real hard to find those in the right size but I'm sure they are out there

Mullah88
11-06-12, 12:23 AM
something like this?

http://www.superbrightleds.com/moreinfo/led-vehicle-replacement-bulbs/fuse-led-bulb-1-smd-led-festoon/243/1162/

DarkMingBlueSTS
11-06-12, 12:41 AM
something like this?

http://www.superbrightleds.com/moreinfo/led-vehicle-replacement-bulbs/fuse-led-bulb-1-smd-led-festoon/243/1162/

Yes but you'll have to pull one out from the car, measure it and then find one with a matching size

Mullah88
11-06-12, 01:05 AM
Gotcha ill do that tomorrow

muzariaz
01-03-13, 12:15 AM
the front turn signal bulb is a 3757, will 3157 work cuz i cant seem to find any LED 3757's!!!

DarkMingBlueSTS
01-03-13, 05:18 PM
the front turn signal bulb is a 3757, will 3157 work cuz i cant seem to find any LED 3757's!!!

Yup 3157 will be fine

DeviledSTS-V
01-29-13, 12:57 PM
Can someone verify the size of the front quarter panel turn signal bulbs? Are they 194's?

1BadCadSTS
01-29-13, 01:56 PM
The fender bulbs? Yea 194

DeviledSTS-V
01-29-13, 03:32 PM
Yes the fender bulbs. Also how do you take off the cover? Dont want to break it either.

DarkMingBlueSTS
01-29-13, 04:16 PM
Yes the fender bulbs. Also how do you take off the cover? Dont want to break it either.

Pull back the wheel well liner, and then you can reach it from the inside and push it out...you may have to turn the wheels also

DeviledSTS-V
01-29-13, 04:32 PM
One last question, for the license plate lights, any special methods or tricks to replace those? Havent tried taking off the covers to replace those.

DarkMingBlueSTS
01-29-13, 04:48 PM
One last question, for the license plate lights, any special methods or tricks to replace those? Havent tried taking off the covers to replace those.

Remove the the carpet liner on the trunk lid...i built shiney housings for mine to give them a brighter look...i used "tin foil tape" (ac tape) to build them

Northridge
04-10-13, 11:01 AM
Can anyone tell me where I can find instructions for replacing the passenger side "bullet" lamp in the headlight assembly on my 08 STS ? Apparently it's a rather daunting task.
Thanks, Rob

DarkMingBlueSTS
04-10-13, 05:36 PM
Can anyone tell me where I can find instructions for replacing the passenger side "bullet" lamp in the headlight assembly on my 08 STS ? Apparently it's a rather daunting task.
Thanks, Rob

You have to take all of the steps needed to replace the headlight lamps

EChas3
04-10-13, 08:40 PM
There's an ongoing debate among members. The 'by the book' crowd say remove the bumper cover. The 'shortcut' crowd say it's not necessary.

As usual, they both have their points.

06WhiteDiamond
04-11-13, 11:40 AM
Hmm i read through the entire thread and it seems that nobody mentions the bulb type for the trunk light, can anyone chime in?

dannyquest
02-02-14, 02:23 PM
Need help on removing the light bulb from under the shifter. It was easy to remove the trim to see the bulb. The little blue bulb won't come out. Tried to pull & twist, no luck. What part number is this bulb. Is this a dealer item. Thanks, Danny

ddalder
02-02-14, 04:09 PM
Need help on removing the light bulb from under the shifter. It was easy to remove the trim to see the bulb. The little blue bulb won't come out. Tried to pull & twist, no luck. What part number is this bulb. Is this a dealer item. Thanks, Danny
The part number (for my 2008) is 89027003. You don't show what year your STS is so I'm assuming 2005+ in which case I believe it's the same part number. When I bought one for my car, US retail on this item is $32.48. Chris at Rippy will likely be able to do much better but this is an expensive bulb.

dannyquest
02-02-14, 04:33 PM
ddalder, Thanks for the info. My STS is an 06. With the price of this bulb it might stay dark. Is there a trick on removing the bulb.. Danny

ddalder
02-03-14, 08:19 PM
ddalder, Thanks for the info. My STS is an 06. With the price of this bulb it might stay dark. Is there a trick on removing the bulb.. Danny
I haven't actually replaced mine yet. The backlight seemed a little dimmer on one side versus the other so I bought a bulb thinking I may have one out but this wasn't the case. As far as I knew, it was just a twist and remove. I'd have to get back into the console to look closer to be offer better advice.

dannyquest
02-03-14, 09:41 PM
I did the twistaroo but no luck. After a while the bulb broke. what left is still there. Danny

ddalder
02-03-14, 09:55 PM
I did the twistaroo but no luck. After a while the bulb broke. what left is still there. Danny
I assumed you were talking about getting the socket out of the shifter assembly. The bulb itself pulls straight out of the socket, it does not twist.

dannyquest
02-03-14, 10:02 PM
First i tried to pull straight up like a 194 bulb. When that didn,t work I put the old twist to it. Danny

06WhiteDiamond
02-03-14, 10:40 PM
Can you change the bulb for the + and -? Like when you put it into tiptronic? The + and - have not worked since I bought the car.

ddalder
02-03-14, 10:54 PM
Can you change the bulb for the + and -? Like when you put it into tiptronic? The + and - have not worked since I bought the car.
I would expect so. Something tells me that when I had my console apart, there are two bulbs (even though the parts listing only shows there is one). My + and - have always been backlit.

cadillacjoel23
03-11-14, 12:16 AM
I need help all of my interior lights on my 02 sts feet,bottom door,overhead front, and rear are sum kind of fuse light with metal on each end of the bulb I think the correct term is festoon not sure in part number or bulb number would be greatly appreciated thanks

Boat
08-25-14, 08:04 PM
Couldn't find an answer in this thread. I have an 07 STS, and changed one of the front markers/turn signals with a 3157 LED bulb. That turn signal hyperflashed, so I didn't bother swapping the other turn signal bulb. Do I need a different flasher relay in place of the stock one?

ddalder
08-25-14, 09:05 PM
The bulb or a connection is your problem. These vehicles do not have a flasher in the traditional sense. Flash is controlled by the rear integration module.

----------

There is no actual relay to control the lamps.

Boat
08-25-14, 09:41 PM
So would it be possible that I needed to have both led bulbs plugged in for this module to think there isn't a problem?

dkozloski
08-25-14, 09:45 PM
The part number (for my 2008) is 89027003. You don't show what year your STS is so I'm assuming 2005+ in which case I believe it's the same part number. When I bought one for my car, US retail on this item is $32.48. Chris at Rippy will likely be able to do much better but this is an expensive bulb.The bulb is a generic #73 with a blue silicon sleeve over it. I took a $1.53 #73 and painted it with blue fingernail polish. The bulb pulls straight out. I wrapped it with a small piece of duct tape to get a grip on it.

Guy.Seminerio
08-25-14, 10:38 PM
http://www.cadillacforums.com/forums/cadillac-sts-forum-2005-through-2012/505145-sts-sts-v-led-drls.html

Here. I have amber led DRLs installed. I realize I never closed this out but I have since mounted the load resistors and do not have hyperflash. You need load resistors. Installing both won't prevent hyperflash.

ddalder
08-25-14, 11:43 PM
So would it be possible that I needed to have both led bulbs plugged in for this module to think there isn't a problem?
Sorry, didn't see that you had specified LED in your post. Follow Guy's post. A resistor is required. The module will sense an open circuit because LED's only require a fraction of the current used by incandescent bulbs.

STSCADDYLI
10-07-14, 10:07 AM
First I'd like to say hello, I just joined. Here's the issue...2006 STS rear LED tail lights...ONE FREAKIN LIGHT OUT...I HAVE TO CHANGE THE WHOLE TAIL LIGHT?!?! I heard there may be a STICKY THREAD with a step by step to do it myself and just replace the single bulb but I'm not too good with this forum and finding things so PLEASE any help would be greatly appreciated! NOW I KNOW WHY PEOPLE THAT HAVE THIS PROBLEM CONTINUE TO DRIVE AROUND WITHOUT FIXING IT!!!!!!

dkozloski
10-07-14, 12:34 PM
First I'd like to say hello, I just joined. Here's the issue...2006 STS rear LED tail lights...ONE FREAKIN LIGHT OUT...I HAVE TO CHANGE THE WHOLE TAIL LIGHT?!?! I heard there may be a STICKY THREAD with a step by step to do it myself and just replace the single bulb but I'm not too good with this forum and finding things so PLEASE any help would be greatly appreciated! NOW I KNOW WHY PEOPLE THAT HAVE THIS PROBLEM CONTINUE TO DRIVE AROUND WITHOUT FIXING IT!!!!!!It takes about 1/2lb. of C-4 to get into the tail light and 1/2 lb. of super glue to get it back together to find out that another section is dead.

fly187
10-07-14, 06:33 PM
I did last last winter on my 06 STS. Though I put a amber LED as the "peanut bulb" in the lower corner of head light. I loved the look. I also broke the little clips that hold it in place. I used a silicon gasket to secure in place. It worked but the down fall was I had to sit there and hold it place for a 10 15 minutes for it to set. The reason I used silicon was that its easily removed if I had to take it off again. This summer had a head light go out and, while I had the assembly back off I looked at the seal on it and it was still holding strong. here are some pics. I also bought 3m headlight restoration with the sanding disc. and went to town. They still look new. OH! also after I installed the Peanut LED in them, I did get a little condensation inside the assembly. When I had them back off to replace headlight. I went ahead and tore off the foam seal and used silicon again. Easy seal, and easy removal for the future. But I hope I don't have to take them off any time soon. gets old. 253658253666

STSCADDYLI
10-13-14, 01:32 AM
There's seriouslyNO WAY to get into the tail light to change ONE LED?

1BadCadSTS
10-13-14, 12:07 PM
Sure you can replace it.

You'll need:
Oven
Smled
Aquarium glue
Solder gun with solder

Bake lamp remove lens unsolder old led solder new one reglue back together and install.

In short BUY A USED ONE OFF EBAY.

Seriously LEDs go out on any tail lamp from a Ford to a Benz. Didn't like the price of parts shouldn't of bought the car.

-STS-
11-23-14, 08:50 PM
After MANY weeks of searching, I finally have compiled 100% correct information for every light in the STS. Here it is:

Headlight (without HID) :
▬▬
|O | -- 9005
|O | -- H11
| o| -- 192/194
▬▬

Front Running Light / Turn Signal:

▬▬
| | -- 3757
▬▬

Fog Light:

▬▬
|O| -- H3-55W
▬▬

2 Front Side Marker - 194/2825
2 Rear Side Marker - 194/2825
2 Backup Lights - 3157
2 License Plate Lights - 194/2825
2 Front Overhead Dome Lights and 2 Rear Overhead Dome Lights - 194/2858
2 Under Dash Lights by your feet - 194/2825
2 Bottom of Door when you open - 906

This should be every light in the car. I will have my LED conversion finished later this week. Please sticky this, or put it in the FAQ and link to it. Thanks!

Thank you for this list!
But which bulb exactly is it supposed to be? I mean, 194 and 2825 is not the same, they have different wattage. I just pulled out the bulb for the footwell, but it didn't have any markings on it, so I would know what kind of bulb it is. Of course it is a wedge type, but which?

ddalder
11-24-14, 12:36 AM
So again... this list is not accurate. I'm not sure where some of these numbers are coming from but certainly not from GM. It's possible that the bulbs may have changed over the various 2005-11 model years so I won't claim to have the 'definitive' guide either (at least for anything but the 2008). I know of few, if any, 194's in the STS. For example, the bulbs in the fender repeater lamps are a W5W which has two times the mean spherical candle power of the 194. The 'peanut' bulbs in the headlamps are also not 194's, they are a W5WB50X2. There are a few inaccuracies here. Although this should be evident, just because one bulb 'looks' or 'fits' like another doesn't mean it has the same specifications.

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In short, if you want one that will basically work, plug one in that fits. If you want one that meets the engineered specs, check with your dealer for the correct bulb.

Ludacrisvp
12-09-14, 07:55 PM
Here is the list updated as best as I can tell based on personal knowledge and research:

Headlight:
▬▬
| O | -- 9005/HB3 (12.8v @ 65w) or D1S HID (85v AC @ 35w)
| O | -- H11 (12.8v @ 55w)
| o| -- W5WB50X2 (13.5v @ 5w) [the "194" lamps are only 12.8v @ 3.5w]
▬▬

Front DRL / Turn Signal (only 1 filament is used): [There are a lot of different lamps that work here, not sure what one is official but those are all cross compatible from what I can tell]
▬▬
| | -- 3157A/4157A/3757A/4757A (12.8v @ 27w/8.3w)
▬▬

Fog Light:

▬▬
| O | -- H3 (12.8v @ 55w)
▬▬

2 Reverse lamps - 3157/4157/3757 (12.8v @ 27w/8.3w)
2 License Plate lamps - W5W/2825 (13.5v @ 5w)
2 Front Side Marker lamps - W5W/2825 (13.5v @ 5w)
2 Rear Side Marker lamps - W5W/2825 (13.5v @ 5w)
2 Front Overhead Dome Lights - W5W/2825 (13.5v @ 5w)
2 Front footwell lamps - W5W/2825 (13.5v @ 5w)
2 Rear Overhead Dome Lights - W5W/2825 (13.5v @ 5w)
2 Bottom of Door when you open - 906 (13v @ 9w)
4 Vanity (mirror) lamps - TS-14V1.5CP (12.8v @ 1w) mini-festoon/barrel lamp
1 Trunk lamp - TS-211-2 (12.8v @ 12.4w) festoon/barrel lamp

1 Glove box lamp - unknown lamp