Transmission Not Shifting on my 2014 Chevy Equinox

[chevyguy]

So I had some problems with slippage during some of the hot days. Bought this 2014 chevy equinox AWD used with about 90k on it and I guess the tranny was never serviced. Drained and refilled the fluid in the transmission, which was only about 4 quarts or so (need to flush to get it all) and it was black. Did it again in a week or so to mix in some good fluid. Car ran alright but instead of a slippage, it started to develop a hard shift. Next day, started to drive it and it would all of a sudden rev out like its in neutral. Coasted the car to the side of the road and moved the shifter, but would not engage into drive or reverse. i shut the car off and restarted and then it would go into drive (electronic control) but after a few feet it would pop back into a neutral state with the shift indicator in drive.

No codes, no lights. 

[chevyguy]

This ended up completely failing and had a rebuilt tranny installed.

[Alex Simson]

The 2014 chevy equinox is an old car, and parts are not easy to find especially authentic ones. Do you know car parts also affect the insurance cost? I would suggest people insure their cars asap.