Ok guys- just ordered the card key for the 2020 LX570 in hopes that it will fit the 2020LC. The part numbers are below. It lists for $360 from the Lexus, but I was able to get the part # to show up in the Toyota parts database online for McGreorge Toyota and ordered it for $210 delivered. Now I just need to wait for it to arrive and see if it will install.
TRANSMITTER SUB-ASSEMBLY, ELECTRICAL KEY(CARD KEY)
This Fits Your 2020 Lexus LX 570
Part Number: 8990448Q90
Supersession(s): 89904-48Q90
Fits LX 570
TRANSMITTER SUB-ASSEMBLY, ELECTRICAL KEY(CARD KEY)
This Fits Your 2020 Lexus LX 570
Part Number: 8990448Q90
Supersession(s): 89904-48Q90
Fits LX 570