Dynamic Radar Cruise Control
 

I have a 2021 RXL. When I set the DRCC and start descending a hill the DRCC will not hold and goes up anywhere from 10 to 15 MPH over the set speed ( 40 ,45, 50 60 mph) Dealer seems to think this is normal. I recently had a loaner 2022 RXL and it held spot on ( well 1 mph over the set.) on the same hill. I did some more hills at 40 45 50 55 mph and same it held the set speed.
Do you think there is a newer module or programing change in the 2022 model year. This is very frustrating. Anyone have this experience?
Thanks
JB