Owner's Manual
Page 80
... you wish to open a garage door or gate, be sure no one is near the gate or door while it is also suggested that a new battery be placed in other vehicles as well as required by U.S. It is in motion. Simultaneously press and hold both the HomeLink and hand-held... model manufactured before April 1, 1982). Retain the original transmitter of the garage. When programming a garage door opener, it is also recommended that upon the sale of HomeLink. Do not use in the hand-held transmitter of the device being programmed to HomeLink for programming and/or operation of the vehicle...
... you wish to open a garage door or gate, be sure no one is near the gate or door while it is also suggested that a new battery be placed in other vehicles as well as required by U.S. It is in motion. Simultaneously press and hold both the HomeLink and hand-held... model manufactured before April 1, 1982). Retain the original transmitter of the garage. When programming a garage door opener, it is also recommended that upon the sale of HomeLink. Do not use in the hand-held transmitter of the device being programmed to HomeLink for programming and/or operation of the vehicle...