Owners/service Manual problems of the 2006 Toyota Highlander Hybrid

While driving the vehicle at approx. 60 miles per hour the brake light and vcs system light came on. The warning light also went on. In accordance with the owner's manual, I took the car to an authorized Toyota dealership. According to the automobile status report, the abs-hydraulic control assembly: with ecu must be replaced. According to complaints I researched on-line, several complaints have been documented relating to this make, model and abs system. I filed an incident with Toyota (reference number: 1308221198). The intake representative who checked with the dealership said this wasn't a recall item and no support was available to extend the warranty on the part. She confirmed that the service department stated that there was no defect in the workmanship. I asked dana (the person I spoke to) if I could take the vehicle for a second opinion relating to the abs part. I also asked for verification that the service department actually checked the part for a defect or is qualified to determine if in fact it is a manufacturers' defect. The dealership quoted that the abs part; brake flush/fluid exchange/bf; engine air filter replacement;a/c service-acs; coolant flush (premium)-cf; and fuel injection service would cost $2,250. I also asked the Toyota customer service representative what the battery expectancy on the car is and whether the manufacturer offers any support in terms of the costs. I was told by the dealership that the battery can cost $5,000. 00 to replace but the manufacturer may offer some support. I would appreciate your assistance, research and filling of this complaint.