Transmission Fluid 2012 Corolla

#1
I’ve been noticing a loud idle and take off on my 2012 Corolla. Loud whirring noise under shifter when sitting still. I feel like it’s the transmission. After checking the trans oil it seems like I might be right. Has anyone ever changed transmission fluid on a 2012 model LE?
 
#2
I did the transmission fluid on my 2011 Corolla recently. There is a drain plug at the bottom of the transmission oil pan. I drained Mine, measured how much came out and refilled VIA the dipstick tube.

I would advise to ONLY use transmission fluid purchased at the dealer. Using the wrong fluid cause further damage to the transmission.
 
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