1997 Chevrolet Astro Owner's Manual - Page 127

Universal Transmitter (Option) This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: ( 1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This devicecomplies with RSS-2 10 of Industry and Science Canada. Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference received,including interference that may cause undesired operation of the device. Changes or modifications to this system by other than an authorized service facility could void authorization to use this equipment. This transmitter allowsyou to consolidate the functions of up to three individual hand-held transmitters. It will operate garage doorsand gates, or with the accessory package, other devices controlled by radio frequency such as home/office lighting systems and security systems. The transmitter will learn and transmit the frequencies of most current transmittersand is powered by your vehicle's battery and charging system. Programming the Transmitter Do not use the transmitter with any garage dooropener that does not have the "stop and reverse" feature. This includes any garage door openermodel manufactured before April 1, 1982. Be sure tkat people and objects are clearof the garage door you are programming. 2-53