My Corolla GLI 4 Speed Auto 2018 model is now 25560 kms driven. Since last year i’m facing the problem in it’s gear on high RPMs. Car runs smoothly in city travel where RPMs are relatively low but when on Highways, the car jerks very badly when the gear shifts to low gear on acceleration.

I’ve tried changing gear oil and gear oil filter and also checked if the mountings are ok. What further could be done to resolve this issue?

I started my car after 2 to 3 weeks battery was dead tried jump start a few times didn't worked got my battery charged went to start my car at first as soon the car started rpm went to almost to 2000 and came back to 500 in 2 to 3 seconds then it was high revving at stable at 1000 rpm but accelerator wasn't working as I put my foot on it rpms didn't go up but when I shifted my car into 1st 2nd and reverse gear it did roll and engine check light is also showing on the speedometer

Vehicle very smooth but when i shift my gear to 3rd while high rpm there is sound and vibration in gear knob
If i shifted my gear at very low rpm (when rpm almost 0) no sound appear
Gear shift smoothly