Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+
You don't list the model, manufacturer or year of your opener but the odds are that it is an older model and the new units have had a radio frequency change. The 2009 Impala would also have the new frequency. An older opener will not work.
Posted on Jun 04, 2009
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Posted on Jan 02, 2017
THEY MAKE THE SYSTEM AND HAVE INSTRUCTIONS YOU CAN DOWNLOAD.
PLEASE NOTE: NOT ALL BRANDS/MODELS OF OPENER WILL WORK WITH THIS SYSTEM.
HOPE THIS HELPS
Posted on May 30, 2010
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