Toyota Repair: 2001 Sequoia AC dash switch starts to flash on and off, metal particles, dash switch

Question
Hello Ted - 2001 Sequoia, 100K miles.  no leaks or other issues.  Went to turn on the AC today and the engine started to feel like it was loaded down for a few seconds and then the AC switch LED started to blink on and off every second.  The AC never actuated since the air did not become refridgerated.  I shut the vehicle down and turned it on to try again, same thing.  I popped the hood to look for leaks, damaged belts, none.  Everything looks good.  Any recommendations for this one ?

Answer
There have been some issues with the a/c compressors in the past and toyota had issued a service bulletin(TSB-AC001-04)it will require replacing the compressor and some of the other components such as a/c pressure lines and the expansion valves for both front and rear a/c. What happens is that the compressor is disintegrating causing metal particles to enter the entire system clogging lines and valves, this is not good news, it may run up to $4,000 to correct this problem.