I went out tonight and looked at my car with the lights on and noticed in my rear lights, one of the bulbs was out. I was wondering what size I would need to buy to replace one of the rear light bulbs. Thanks.

2003 TL-S

 

Its easy to change- here is the link to the owner manual with full instructions
click your year then model
https://techinfo.honda.com/rjanisis/...01_OMANUAL.asp

basically you loosen the plastic sill plate on the trunk, remove the plastic knob in the upper corner, pull the cardboard forward gently- figure out which of the 4 bulbs you need to unscrew...

They are special bulbs, often come in a 2 pack for about $5

 

7443 is the bulb. Thanks!