Usually you just hold the button down in your truck until it flashes probably 5 7 seconds then press the button on your garage door opener while still holding down the button in your truck.
2012 silverado garage door opener.
Programming your homelink garage door opener for the first time.
Start with the garage door open.
My 2012 came with this as a factory installed option and i ve been using it with my 15 year old garage door opener ever since i bought the truck new in 2012.
Find your homelink buttons.
The lear product shown in the photo is not homelink they called in universal home remote and lear called it learcar2u.
Park your car facing your garage and switch on the ignition.
It is likely that they will be located on your rearview mirror your visor or your overhead console.
Car2u is a universal garage door opener remote feature available on some buick cadillac chevrolet ford gmc lincoln mazda mercury saturn and hummer vehicles.
Then go push the button on the opener motor and run back to the truck and push and hold the button in the truck that you wnat it to be.
Push and hold the 3 buttons in the truck i think until they flash you might check the owners manual on that.
Hold the truck button until the door closes then let go.
This system is very similar to the home link system.