Interior LEDs replacement - question
I’m happy owner of 2022 IS350 FSport and I’m planning to replace all interior halogen bulbs to LEDs. I really like the color temperature and color of the dome/map light that comes from manufacture, but all the bulbs in the doors (puddle light), footwells and trunk are still ‚amber halogen’ which doesn’t look that great.
So there is the question - will any ‚194’ aka T10 LED bulb fit all of these places? Anyone knows exact color temperature of the dome/map LEDs that come from manufacture so i can match new bulbs with them?
In my previous car (Civic) i replaced all interior bulbs because it didn’t have any LEDs but halogens so i got this 10-pack of 6000K bulbs and it was just fine - https://www.amazon.com/Marsauto-Replacement-Courtesy-License-Lights/dp/B079L3WBDN/ref=mp_s_a_1_3?crid=2LZTAIY0QM8XF&keywords=led+bulbs+interior+car+lights&qid=1646639681&sprefix=led+bulbs+interior%2Caps%2C58&sr=8-3
I’ve had a 2015, 2018 and now 2022 IS350. First thing I usually do is switch out the amber light bulb for whiter LEDs. I’ve used the same bulbs since 2015 and they fit. They’re all T10… they all fit except the 2 center dome light consoles.
My LED bulbs are 5000k and I wanted to change the colour of the dome light too since I believe it’s more like 4000k (not sure). But it’s a touch responsive light and not like my ‘15 and ‘18 where they were traditional buttons. So not that easy to swap the bulb… I asked my dealer and they remove the center to console. Looks like it’s already a flat LED in there.
For the trunk, I recommend using a flat LED with an adapter like the picture below. The adapters aren’t super great (loose) but play around with it and the final results will be impressive! I only have the link to Amazon Canada… so screenshot it is!
I’ve had a 2015, 2018 and now 2022 IS350. First thing I usually do is switch out the amber light bulb for whiter LEDs. I’ve used the same bulbs since 2015 and they fit. They’re all T10… they all fit except the 2 center dome light consoles.
My LED bulbs are 5000k and I wanted to change the colour of the dome light too since I believe it’s more like 4000k (not sure). But it’s a touch responsive light and not like my ‘15 and ‘18 where they were traditional buttons. So not that easy to swap the bulb… I asked my dealer and they remove the center to console. Looks like it’s already a flat LED in there.
For the trunk, I recommend using a flat LED with an adapter like the picture below. The adapters aren’t super great (loose) but play around with it and the final results will be impressive! I only have the link to Amazon Canada… so screenshot it is!

So probably to save the headache with replacing dome light I’ll leave them as is, and I’ll just replace all other bulbs with LEDs.
Looking at some pictures online, like this:
Looks like you are right, dome lights are something around 4000k so I might look for that color of LEDs or I’ll stick with 5000k as well!
Thanks for advice with trunk bulbs, I might actually try that flat leds panel.
EDIT: Actually it is hard to find any t10 5000k that would fit the car… 99% of them are 6000k
I only found these in 5000k but not sure how they will look (if not too bright) and they are kinda expensive (16$ for 2-pack when usually they cost 10-15$ for 10-12pack)
Last edited by Nexus713; Mar 7, 2022 at 05:13 AM.
For the trunk, I realised the Amazon listing says 8000k! They’re definitely bright and very white (almost blue)!
As for the rest of the bulbs, here are some pics. I also took one where you can compare what they look side to side with the OEM dome light. Not the best way to take pictures of lights but I guess it’s better than nothing.
I also have the two tone colour [red and white] lexus f-sport ground projector courtesy bottom door lights but I don't see a listing for that at the moment on amazon or ebay, search around even try ali express.
Here is the mono white one https://www.ebay.ca/itm/265440177207
https://www.amazon.com/AUXITO-Chipse.../dp/B071LHP5WP
I also have the two tone colour [red and white] lexus f-sport ground projector courtesy bottom door lights but I don't see a listing for that at the moment on amazon or ebay, search around even try ali express.
Here is the mono white one https://www.ebay.ca/itm/265440177207
For the trunk, I just liked to have lots of light lol
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Got these today - will install them within few days.
I will keep dome/map light stock for now, if difference between them and other leds will bother me, then I’ll change it as well.
Question - is it possible to setup/hardwire the footwell light to stay on all the time when car is turned on? I didn’t see that option in vehicle settings. My wife’s NX300’s footwell leds are on all the time from manufacture but in my IS350 FSport they only light up when map light turns on (when i turn off car)
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I use a small flat head screwdriver and remove the clear plastic cover, switch out the bulb and put back the cover. That’s it!
I use a small flat head screwdriver and remove the clear plastic cover, switch out the bulb and put back the cover. That’s it!
So far replaced bulbs in doors and it looks way better 👍🏻 I’ll post pictures when I’m done with all of them.
So far replaced bulbs in doors and it looks way better 👍🏻 I’ll post pictures when I’m done with all of them.
How this helps!
Vanity Mirrors:
Door / Puddle Light:
Footwell Lights:
Trunk Light:
Bonus: Real Carbon Fiber License Plate Frame
For the trunk, I just liked to have lots of light lol







