To open a garage door with a broken cable, first, use the emergency release cord to disconnect the door from the opener. Manually lift the door with caution, using supports if needed to keep it stable. Repair or replace the broken cable as soon as possible to restore proper function.

A broken cable requires disconnecting the door from the opener using the emergency release cord. Lift the door manually while ensuring stability. Prompt repair or replacement of the cable is essential to prevent further issues. Regular inspection and maintenance of cables can help avoid such problems.