2007 LEXUS LS Forward Collision Avoidance Automatic Emergency Braking Problems

My vehicle brake, ABS, lights are on the dashboard, Lexus has deemed the vehicle unsafe to drive due to the brake actuator being faulty causing internal damage to the ABS, junction box this is a $5000 repair, upon my research I find that service bulletin were issued years ago about this from Lexus and they reimbursed or repaired these issues during a good will campagne they initiated, was advised by a Lexus member of corporate that the letter came out for my vehicle but I was not the owner at the time, they are now saying its expired and nothing they can do. This does not waive their responsibility of this defect, which is not a wear and tear item. I have tried to allow Lexus to remedy this situation only to be hit with resistance. Please see attached