Just a year removed from a full redesign, the 2012 Toyota Sienna carried into the 2012 model year with only minor changes to its standard and optional features. This model came standard with a 2.7-liter four-cylinder engine and had a more powerful 3.5-liter V-6 as an option. Also optional on the Sienna was a HomeLink garage door opener that allowed the owner to open or close his garage door without the remote. Programming this system varies, depending on the type of garage door opener you have.
Non-Rolling Code Garage Door Opener
Hold the garage door opener 1 to 3 inches from the HomeLink interface on the rearview mirror. Press and hold the garage door opener button and the HomeLink button you wish to program to open the garage door at the same time. After about 20 seconds of holding these buttons, the HomeLink indicator light - the red light on the rearview mirror - will change from a slow flash to a rapid flash. Once the HomeLink light starts flashing rapidly, release the garage door opener button and the HomeLink button. Attempt to open the garage door via the programmed HomeLink button; if it does not open the garage door, repeat the entire programming process.
Rolling Code Garage Door Opener
Find the "training" button on the garage door opener. If you do not know where this button is, refer to the garage door opener owner's manual. Have an assistant press and release the "training" button on the garage door opener, then immediately press and release the HomeLink button you wish to program to open the garage door opener three times to program the HomeLink system to the garage door opener's rolling code. If the garage door does not activate after the third press of the HomeLink button, start the programming process over.