P0700 GMC -2007 Yukon SLT

Question

Please help!
I have a 2007 Yukon SLT 2wd and it only has 65k miles everything was good with my car until one day it started to do a little jump right after a full stop so the mecanic told me I need it to change the transmission oil and add this liquid to clean it, so we did and he showed me that the oil had a lot of metal and he said it was bad, so he told me my car should be good with the new oil, but right after he was done I went for a drive and my Yukon wasnt responding good when I press on the gas until I keep going a little more it started going good, it's like if I'm forcing my car to go and it doesn't want to every time I make a full stop or go supper slow and try to go normal speed again.
So now I don't know what to do the check ingen light was on and it came right back again he came back and now it had 4 codes all of them where saying something with my transmission and one of the codes was PO700
What does this mean? Do I need to rebuild my transmission? Or is there a way to fix this problem?
Thanks

Answer 1

P0700 Transmission fault detected Mil light requested

Metal partical in the fluid. you need a transmission, the only fix is a rebuilt or replacement