Owners Manual
Page 101
...reverse), does not meet current federal safety standards. Changes or modifications not expressly approved by federal safety standards. (This includes any garage door opener that may cause undesired operation. Using a garage door opener without these features increases risk of the garage door or other... manufactured before April 1, 1982.) A garage door opener which cannot detect an object (signaling the door to stop and reverse feature as required by the party responsible for 20 seconds until the indicator light flashes. CAUTION D When programming the HomeLinkR Universal Transceiver...
...reverse), does not meet current federal safety standards. Changes or modifications not expressly approved by federal safety standards. (This includes any garage door opener that may cause undesired operation. Using a garage door opener without these features increases risk of the garage door or other... manufactured before April 1, 1982.) A garage door opener which cannot detect an object (signaling the door to stop and reverse feature as required by the party responsible for 20 seconds until the indicator light flashes. CAUTION D When programming the HomeLinkR Universal Transceiver...