Single Code Garage Door Opener

• 1). Park your 300C near your garage door. Press and hold the two outer buttons on the HomeLink system -- the garage door buttons -- for 20 seconds and observe as "Channels Cleared" appears in the Electronic Vehicle Information Center, located between the speedometer and tachometer.
  
  
• 2). Hold your garage door transmitter about three inches away from the HomeLink buttons. Press and hold the garage door opener button and the HomeLink button you intend to use for the garage door, at the same time.
  
  
• 3). Release the buttons when the EVIC displays "Channel X Trained" -- the "X" indicates the HomeLink button that you programmed.
  
  
• 4). Hold the button you just programmed and check the EVIC display. If it reads "Channel X Trained," with "X" being the HomeLink button number, then you programmed the system correctly. If the EVIC displays "Did Not Train," repeat steps 2 and 3.
  
  
• 5). Repeat steps 2 through 4 to program the remaining two buttons, if needed. Do not repeat Step 1, as this deletes all programs.
  
  

Rolling Code Garage Door Opener

• 1). Follow steps 1 through 5 in the section titled "Single Code Garage Door Opener."
  
  
• 2). Locate the "Learn" or "Smart" button on the garage door opener motor. The exact positioning varies on every model opener, but it's typically found near the antenna. Press and release the "Learn" or "Smart" button.
  
  
• 3). Hold the programmed HomeLink button for two seconds and release it. Repeat this step two or three times -- the exact number of times depends on the brand of garage door opener.