Really, tofuprod? Your eyes must be better than mine. If it gets brighter again then I couldn't detect it. I will have to take a closer look next time. Last night it seemed to dim by 90% when I moved out of Park and it didn't seem to get appreciably brighter after that until the next engine start.

Thanks for the info. Do you happen to have the part number?.

I will ask dealer if covered under factory warranty, else will fix it myself.

Satiger, it is 55011-50090 ("Garnish Light Assembly"). I now see on my invoice that my mechanic charged $130 for the part.

Satiger, I find it odd that mine failed and yours is only partially working. It is not a part I expected to have problems on the LS. LEDs are supposed to be pretty resilient. I wonder if Pattern 1 (light-saber pattern) is more prone to burnout than the gradual Pattern 2 illumination, like on the 4-inch strip above the side-mirror controls. Granted, our cars represent just two incidents but perhaps the ambient strip burns out more frequently and most owners might not even be aware that there's supposed to be a strip of light above the glove compartment. I certainly missed the fact when I was inspecting the car for purchase, and so did my mechanic.

Indeed, at least in mine it did. I was at the office the other day when I read this thread, then when I left it was already dark out - it definitely did dim when I shifted from Park into Drive, and it "seemed" to get brighter as I drove, but it could have just been my eyes adjusted. It did however did noticeably dim when I shifted from park to drive.

Thank you for the video.
I wonder where I can find this setting on my 2013 LS460.
I searched my manual and did not find anything about this ambient light setting.
Mine does not illuminate at all, but I open the glove box I can see a white strip there under the trim. Am I miss something or the light is broken?
Thank you.

Hi lizhekb, I had to order a and paired it with the Carista Android app to toggle between Advanced Illumination patterns. My mechanic also offers to make personal setting changes for free but I just wanted to learn more about the available options myself. If yours is also broken or burned out then I wonder if the strip of ambient lighting above the glove box is prone to failure (unfortunately, maybe more so in 2013 model years)?

I wanted everything working so I went ahead and paid the cost. In hindsight I would rather spend the money elsewhere because I barely notice the ambient light strip when it is working. It is nice when in Park but dims too much when in Drive, to the point that I don't notice the ambient light at all because I seldom sit in Park for very long (at night).

Sorry, I didn't catch your last question the first time I read your post. You are correct that there's a short span of ambient light strip to the left of the steering wheel too. I only had issues with the strip above the glove box.

lizhekb, I do recall finding instructions before and was about to try to replace it myself too at first. It is definitely doable and you just have to be careful around the airbag beneath the glove box. I will try to find and post the instructions.

EDIT: I can't remember if there was a YouTube video documenting the disassembly and I couldn't find one this time. I have attached a PDF from one of my online repair subscriptions. It covers both the left- and right-side ambient strips. Hope it helps, lizhekb. Oh, and interestingly, I came across a page about some "M2 ambient light sensor". It looks more like a plug with six contacts and it resides beneath the hood. I wonder if we can somehow disconnect it or fool it into keeping the ambient light on instead of dimming it while in Drive. I will have to look into it more when there's time.

Well, that's more than enough information to do it myself. I will study the instruction and then make my plan. It is a big help.

It would be nice if we could personalise some of the options to the car, I will fix it first and join you for a not dimming ambient light solution.