L-TT-0135-13

Tech Tip L-TT-0135-13
Subject
September 09, 2013
Market
10-13 RX350 Exhaust Rattle from Manifold Heat Shield
Service Category
Section
Engine/Hybrid System
Intake/Exhaust
USA
Applicability
2010-2013 RX350
APPLICABLE VEHICLES
2010-2013
RX350
CONDITION
Some 2010-2013 RX350 vehicles may exhibit an exhaust “rattle” type noise 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 repair. Open a Technical Assistance case (TAS) with all relevant details
and call for diagnostic support. Be sure to:
a. Record specific details from the customer on the operating conditions when the concern
occurred.
b. Record specific details about the characteristics of the noise, including which heat shield
was the cause.
c. Perform 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 any way, and submit a Dealer Product Report for this issue. Include information
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 04/28/2011 L
09/09/2014
© 2013, Lexus, a Division of Toyota Motor Sales, USA
Page 1 of 2
Tech Tip L-TT-0135-13
September 09, 2013
Subject
Market
10-13 RX350 Exhaust Rattle from Manifold Heat Shield
USA
Applicability
2010-2013 RX350
LINK REFERENCES
This Tech Tip does not contain any link references
Expires on
Ver. 2.1 08/28/2011 L
09/09/2014
© 2013, Lexus, a Division of Toyota Motor Sales, USA
Page 2 of 2