I had reported rough ride to sales specialist and service dept. It was attributed to new suspension specifications and possible tire pressure. Tire pressure was lowered however rough ride persisted. During the 12 month 10K full maintenance service of RX350 both rear shocks were found leaking and replaced (under warranty). Since I had been monitoring rough ride issues of other RX350's on Lexus forum I reported the suspension replacement incident to sales specialist and I had recommended addressing with those who may need to know to investigate potential suspension problem (s). There was no follow up to my emailed concern. Subsequently on another online forum a participant mentioned having suspension replaced on rav4 (Toyota branded auto). Perhaps there may have been an issue with a specific production run with one of their suspension suppliers and may need to be addressed since it may result in handling and / or control of vehicle.

- Honolulu, HI, USA