2004 Mazda 6 Transmission issue

My daughter bought a 2005 Mazda 6. At about 15,000 miles her car had a shift problem. I don’t know if she had all the same symptoms as you. When she called the dealer they told her to bring it in they knew what was wrong. Apparently there was a computer issue that Mazda already knew about. The issue wasn’t mechanical but computer related. The car’s been fine since (about 70,000 miles). This is worth a call to the dealer and maybe your fix will cost a few bucks but not near the price of “an entire new transmission”.