These cars do put smiles on one's face!
Regarding the "SERVICE LTPWS" warning, as long as the light does not stay on when the car is started the system is ok. The system interigates the tire sensor's in a timed manner and if one sequence is interrupted the light will come on. This happens mostly in stop and go driving. It is mentioned in the owner's manual.
Regarding the "SERVICE RIDE CONTROL", again, if the light goes out when the car is started, the system is ok. If the lights stay on when the car is started, then there is a problem. Check code.