Do garage door remotes go bad?

Yes, garage door remotes can go bad over time due to battery failure, worn buttons, damaged circuit board, or loss of programming, though they typically last many years with proper care before failing. Remote batteries, usually coin cell CR2032 or AAA, last 2 to 5 years and when dead cause weak or no signal, so remote appears bad but just needs battery replacement costing few dollars. Buttons can wear out after years of pressing thousands of times, causing intermittent contact where remote only works when button pressed hard or at angle, indicating button failure that requires replacement. Circuit board inside remote can be damaged by dropping remote, water exposure from rain, or extreme temperatures in car, causing remote to fail completely or work intermittently. Remote can lose programming after power outage, logic board reset, or pressing Learn button too long erasing memory, requiring reprogramming by pressing Learn button on opener and pressing remote within 30 seconds, not necessarily bad remote. Radio frequency interference from LED light bulbs installed in opener that are not garage door opener rated can cause remote to appear bad, as LEDs emit interference at 300 to 400 MHz blocking signal, so replace with approved bulbs. On average, garage door remotes last 10 to 15 years, but heavy use, exposure to moisture, and dropping shorten life. Replacement remotes cost 30 to 60 dollars and can be programmed DIY in minute, restoring function without replacing opener costing 300 to 600 dollars.