a) ask Honda to provide a written report to tell you under what conditions the failure can happen, if it's not quality issue. It will cost them a lot of resource.
b) You need to threaten them that you will go to the court. Usually court fee and trip fee cost more than $2200
c) You need to find a agent to prove that the failure is quality issue
Sometime we spend more than what the claims are to decline the claims, very frustated. So you can try some tricks.