Owners of 2007-09 LS460 models may complain of a knock or rattle that emanates from the rear of the vehicle when driving over rough roads.
One likely cause for the noise, reports Lexus, is a defective strut mount. The problem can occur at one or both sides of the vehicle. A new-design, more durable mount, part # 48755-50121, is now available to address the noise issue.
Lexus recommends replacing both mounts, even if only one is bad. After installing the upgraded mounts, check and, if necessary, adjust the rear toe setting.