eddie420

I have been doing a lot of retrofits on my car (e.g., Lane Keep Assist, Dynamic Radar Cruise Control, etc.), and I have not come across anything that says the brake hold function requires anything other than a standard satellite button to activate the system. I am actually planning on doing this on my GS350, If you take apart the driver side instrument sub-assembly under the steering column, the wiring harness is pre-wired into an empty placeholder switch. Would make no sense why it's connected to an empty placeholder unless the system is already there and just needs to be activated. This holds true for the Heads-Up Display I retrofitted as well, just needed to buy the HUD and corresponding switches and it was plug-and-play. The LKA/DRCC obviously is a completely different beast and needs (3) additional ECUs to function properly. I bought the switch the other day for the brake hold retrofit and just waiting for my vacation to finish up some other projects (GS-F trim here I come! https://www.clublexus.com/forums/gs-...f-cf-trim.html).

lobuxracer

iTrader: (2)

Let us know how it goes. I don't share your optimism for the GS F, and because you're modifying a GS350, you have different ECUs so it might work just fine for you and not for a GS F.

eddie420

Will keep you updated. If it works on the GS350, someone should definitely try it on the GSF.

texaslexii

In 4 updates, would love to do the rear power shade retrofit.

Ay-nako

iTrader: (25)

For the GSF I did get a button, there is nothing back there. Unfortunately there is also no "hold" position light up at start up.

eddie420

I installed it today. Update here : https://www.clublexus.com/forums/gs-...-retrofit.html

EDIT: I forgot to put on my seat belt, apparently it does not work if the seat belt is not engaged. Will try tomorrow morning to see if it works.