Try pressing the "Start/Reset" pad to reset the dishwasher and wait 2 minutes. If the problem persists, reset (reboot) the dishwasher by turning off power to the unit at the house circuit breaker or fuse box for 30 seconds. Restore power and the dishwasher should reset and function normally.
What does lock controls mean on a GE dishwasher?
On many of our dishwashers, there is a Control Lock feature to prevent a person (ex. child) from interrupting a cycle already in progress or beginning a cycle by accident. The only dishwasher cycle not affected by the child lockout feature is the DELAY START option.
How do I get my dishwasher out of control lock?
https://www.youtube.com/watch?v=BZUUR39bawY
How do I reset the control panel on my GE dishwasher?
Press the "Start/Reset" pad on a front-control GE dishwasher to cancel the dishwashing cycle. The "Start/Reset" light will flash as the water pumps out, a process that takes about two minutes. When the light stops flashing, the dishwasher is reset and it can be restarted later.