My mirror doesn't have any buttons. Is there some other mechanism for me to open my garage door from inside the Lexus?

 

Hmm, I don't think so. If the car has the opener option, it would have been on the bottom of the mirror. That's pretty standard/typical for all Toyotas and Lexus. Though, I think it's relatively easy to retrofit the Homelink mirror on there if you like!

 

Home Link was part of the Premium Package on CT's. Also included the auto chromatic dimming mirror feature. Those CT's without Navigation have a compass display, with Navigation did not have the mirror compass. New replacement mirrors that would need additional parts and labor to install in the base model CT cost $1200 without the compass or $2000 with the compass! Plus wiring... Hope you can get along with the portable clipped to the (standard equipment!) visor.

 

I bought a OEM overhead dome light console that has homelink (1,2,3 buttons), prices vary. The only option my 15' F-Sport came with is the reverse camera with the screen on the rear view mirror (no homelink buttons).

Plug and play, no wiring needed, you can also swap the homelink between gray/black panels easily. Then I also followed some Youtube tutorials on the programming. I've attached a pic for reference