I have a 2004 model. Apart from the recent Nav and radio/check A/C connection ( no solution yet) I have replaced both Lower Control Arm bushes. The front suspension knocking/thumping sounds are easily mistaken for worn shocks/struts! Expensive mistake I made after a shop misdiagnosed my problem! Check thoroughly. Also, steering rattle problem, mistaken for worn Steering rack issue. Mine is not. Lexus dealer eliminated that and believes it maybe the U-joints in the column or just a rubber bushing which is inconsequential toe performance. Will check the battery life and output as suggested for the first problem above; lets keep sharing and maintain these great driving machines! Thanks.
C.B.
