'17 Pilot jerking under mild acceleration.
 

I have a 2017 Pilot EX-L with 47k miles. Under MILD acceleration, it jerks, but I cannot determine if it is the engine or transmission. If I give it more throttle, everything is fine. It climbs steep hills with no issues, all smooth.
I'm unsure how to check this, so I came here to see if there are any known problems.
Thank you....