the transmission on my 2008 saturn outlook (98,000 miles) stopped working completely at 75 miles an hour while attempting to pass. i am on vacation in mexico. GMC garage mechanic here says i need a new computer control module for inside the transmission case. i saw it: part #24244571 by bosch for GM. i cannot find this part anywhere online... any ideas? there was no mention of the 'wave plate' and the fluid did not contain metal debris.