Go to http://www.wjjeeps.com/homelink.htm
The link below is for Grand Cherokees, but the procedure is the same.
2003 nissan altima visor garage door opener progarming
I need to do step by step the process to program my garage opener door from my 2003 Lexus model# sc430
how to ope my garage door whit my gmc truck
ask chuck noris
check to make sure it doesn't use watch batteries
First make sure the garage door opener is newer than a 1982 model. Press open on the garage door and press the control panel on the Avalon as well. After several seconds a light will indicate that the control is now synced to the car.
look in your owner's manual i did not get one with the van
This one is pretty easy. Press the button in the envoy that you want to program as your garage door opener until it starts blinking rapidly then press you original garage door opener while you are still pressing the program button. Hold like this for a couple of seconds and the button in the envoy should be ready to go
If you have an EX model, it has 3 buttons on the overhead console. That is the Homelink Wireless Control System. Information is available in the Driving Tips Section of the Manual. (Mine is a 2004 Sedona EX) At the end of section 5 are the directions for programing the on-board Homelink Wireless Control System. There are a couple different senerios for different type of garage door openers. Hopefully This helps!
see http://www.homelink.com/home/home.tml for details General Steps 1) Reset your Car Homelink system (hold two outside buttons for 20 secs, light will blink) 2) program a button on your car homelink system by holding the button, while pressing the button for your garage door on your garage door remote within 3 inches of your car homelink system 3) Train the Grarage Door open to recognize your car's homelink system by pressing learn button on your garage door opener, within 30 sec's press the button that you programed in step 2. see http://www.homelink.com/home/home.tml for details General Steps 1) Reset your Car Homelink system (hold two outside buttons for 20 secs, light will blink) 2) program a button on your car homelink system by holding the button, while pressing the button for your garage door on your garage door remote within 3 inches of your car homelink system 3) Train the Grarage Door open to recognize your car's homelink system by pressing learn button on your garage door opener, within 30 sec's press the button that you programed in step 2.
Hold down the left and right buttons at the same time to clear any existing codes. Make sure the battery in your garage door opener is good, then hold down the button in the Sequoia you want to program. After the 'homelink' house symbol starts to blink, hold down the button on your opener - held about 12-14" away from the headliner console. Once the house icon stops blinking, it should work. If not, repeat the process again. If it still doesn't work, try to put a new battery in the handheld opener and try again. Read your manual - the process is spelled out if you need help. Good luck