L-TT-0135-13

RX350
CONDITION
Some 2010-2013 RX350 vehicles may exhibit an exhaust "rattle" type no ise from one or both of the
two exhaust manifold heat shields pictured below:
Catalytic converter and exhaust
manifold heat shields
RECOMMENDATIONS
1. Halt all diagnosis and repa ir. Open a Technical Assistance case (TAS) with all relevant details
and call for diagnostic support. Be sure to :
a. Record specific deta ils from the customer on the operating cond itions when the concern
occurred .
b. Record specific deta ils about the characteristics of the noise , including which heat shield
was the ca use .
c. Perfomi a Techstream HealthCheck and record any stored Diagnostic Trouble Codes.
2. If the problem occurs outside of TAS operating hours , replace the affected exhaust manifold , do
NOT alter it in anyway, and submit a Dealer Product Report for this issue . Include infomiation
about which heat shield produced the noise , and a sound or video file if possible . Retain the
manifold for recovery.
Expires on
Ver . 2 .1 o.;;23;20 11 L
09/09/20 14
© 2013, Lexus , a Division of Toyota Motor Sales , USA
Page 1 of2
September 09, 2013
LINK REFERENCES
This Tech Tip does not contain any fink references
I Expires on I 09/09/2014 I
Ver.2.10$.<'2Si2D11 L
© 2013, Lexus, a Division ofTo}Ota Motor Sales, USA
Page2 of2
I