What is the cost to replace the computer and program it in a 2017 Honda HR-V?

What is your question?

A mechanic already looked at my vehicle and confirmed it is the computer that has gone bad. The dashboard would constantly flicker, whether the ignition was on or off, and then the car alarm started to go off as well. I had to disconnect the battery just to get it to stop. I would like to get an estimate as to the cost of replacing the computer and having it programmed.

What makes this problem better or worse?

Starting the car and the. Turning it off.

How long has your 2017 Honda HR-V had this problem?

A week.