First off, I chose to post this in the SC forum because I think this pertains to only the SC and that I would get a faster response. Ok, I searched allover and the Sylvania website for the bulb size for the two map lights on top and the results are:

Glove box
74

Map light
2040

Dome light
194
194LL Long Life Upgrade: Up to twice the life of the standard lamp

Trunk/Cargo area
194
194LL Long Life Upgrade: Up to twice the life of the standard lamp

Instrument-general
194
194LL Long Life Upgrade: Up to twice the life of the standard lamp

So from that guide, I bought 2 194 wedge LED bulbs. After struggling to take it the cover off, I was shocked to find out that the two bulbs are NOT the 194 wedged ones. The bulb looks something more like this...

 

Yeah, you shouldn't trust Sylvania 100% when it comes to some of their listings (especially for interior lighting). The bulb you posted is a 1157 bulb, I think these look more like or probably are the ones in your map lights:

 

Yep, Sylvania also says that the cornering bulbs in the 92-94 SCs are 1157, when in fact they are 1156 bulbs. The 1157s are the main turn signal bulbs.

 

I got all stoked for nothing then.

Well anyways, do any of you guys know the EXACT bulb size for it by chance??

 

look at the lexus dome lights they are all the same for first gen.

 

Anyone??? I tried search and reading through all the threads. The only thing that I found is that the domelight uses 3022 31mm festoon

 

I can't remember off hand dude but if you give me until tomorrow I'll have the answer.

In the meantime, do you have an owners manual for your car? If not there's a sticky on CL somewhere on how you can get a free one. The manual tells you all the correct bumb sizes and wattage ratings