Instrument Panel problems of the 2005 Honda Civic Hybrid

I received a recall update from Honda on my 2005 Civic Hybrid. They performed the update then my hybrid batter died and my car would not function correctly. While driving, my headlights would dim greatly and my instrument panel would should down. My car would also surge forward when the tachometer would race up and down by 500 rpm. I took it to the dealer after they udpate and they admitted they'd been having this problem with many cars post update. They agreed to fix it. A few days later, the car began to act in the same manner. I took it back to the dealer and they told me that this was not caused by anything they had done this time and that I would need to pay $3000 for the repair. My service advisor told me he totally disagreed and thought the update had caused the issue. He apologized for all of the issues and told me he felt like Honda was not doing what they should be doing.