NHTSA ID Number: 10133852
Manufacturer Communication Number: L-SB-0013-13
TSB/Document Date: 2018-04-23
Summary
Some 2010 ? 2012 model year RX 350 and RX 450h vehicles may exhibit a squeak coming from the rear of the vehicle when going over an uneven road surface. In addition, some vehicles may also display evidence of an oil leak from the rear shock absorber(s). Use the following repair procedure to address these conditions.
L-SB-0013-13
February 28, 2013
Rear Shock Squeak and/or Leak
Service
Category
Section
Rear Suspension
Market
USA
Applicability
YEAR(S)
MODEL(S)
2010 – 2012
RX350, RX450H
ADDITIONAL INFORMATION
Introduction
Some 2010 – 2012 model year RX 350 and RX 450h vehicles may exhibit a squeak coming from the
rear of the vehicle when going over an uneven road surface. In addition, some vehicles may also
display evidence of an oil leak from the rear shock absorber(s). Use the following repair procedure
to address these conditions.
Warranty Information
OP CODE
DESCRIPTION
TIME
ST1301
R & R Shock (One Side)
0.6
Combo A
Other Side
0.2
OFP
T1
T2
48531-#####
64
14
APPLICABLE WARRANTY
• This repair is covered under the Lexus
Basic Warranty. This warranty is in effect for 48 months
or 50,000 miles, whichever occurs first, from the vehicle’s in-service date.
• Warranty application is limited to occurrence of the specified condition described in this
bulletin.
© 2013 Lexus, a division of Toyota Motor Sales, USA
Page 1 of 4
February 28, 2013
L-SB-0013-13
Page 2 of 4
Rear Shock Squeak and/or Leak
Parts Information
MODEL
DRIVETRAIN
RX 350
(TMK)
2WD & 4WD
RX 350
(TMMC)
2WD
RX 450h
SUSPENSION
TYPE
PREVIOUS PART
NUMBER
CURRENT PART
NUMBER
Regular Coil
48531-48100
48531-48280
1
Sport
Package
48531-48130
48531-48131
1
Regular Coil
48531-0E020
48531-0E130
1
Sport
Package
48531-0E040
48531-0E140
Regular Coil
4WD
2WD & 4WD
Sport
Package
PART NAME
Absorber Assembly,
Shock, Rear
QTY
1
48531 - 48200 48531-48300
1
48531 - 48110 48531- 48290
1
48531-48140
1
48531-48141
© 2013 Lexus, a division of Toyota Motor Sales, USA
February 28, 2013
L-SB-0013-13
Page 3 of 4
Rear Shock Squeak and/or Leak
Repair Procedure
1. Confirm the rear shock absorber(s) are leaking oil and/or squeaking when going over bumps.
NOTE
Verify the oil leak falls within the range of Level 1 – 3 and calls for part replacement.
SHOCK
ABSORBER
TYPE:
LEVEL 5
Figure 1.
LEVEL 4
Figure 2.
Oil Leak
Criteria
LEVEL 3
Figure 3.
Action
Figure 4.
LEVEL 1
Figure 5.
2
2
1
Condition
LEVEL 2
1
1
Length
1
Length
2
1/3
Length
2
1/2
Length
Moderate
Slight oil
oil seepage,
seepage,
Oil leak/drip
covering
covering
down lower tube
approximately
approximately
1/4 of lower tube 1/3 of lower tube
Oil leak,
covering 1/2 of
lower tube
Oil leak,
covering entire
shock body and
extending to
lower bushing
Normal oil
evaporation —
NOT necessary
to replace the
shock absorber
Abnormal oil
leak — Replace
the shock
absorber
Abnormal oil
leak — Replace
the shock
absorber
Normal oil
evaporation —
NOT necessary
to replace the
shock absorber
Abnormal oil
leak — Replace
the shock
absorber
© 2013 Lexus, a division of Toyota Motor Sales, USA
L-SB-0013-13
February 28, 2013
Page 4 of 4
Rear Shock Squeak and/or Leak
Repair Procedure (Continued)
2. Remove rear shock absorber.
Refer to the Technical Information System (TIS), applicable model and model year
Repair Manual:
• 2010 (12/2008 - 08/2009) / 2010 (08/2009 - ) / 2011 / 2012 RX 350:
Suspension – Rear Suspension: “Rear Suspension: Rear Shock Absorber: Removal”
• 2010 (03/2009 - 08/2009) / 2010 (08/2009 - ) / 2011 / 2012 RX 450h:
Suspension – Rear Suspension – “Rear Suspension: Rear Shock Absorber: Removal”
3. Replace rear shock absorber.
Refer to TIS, applicable model and model year Repair Manual:
• 2010 (12/2008 - 08/2009) / 2010 (08/2009 - ) / 2011 / 2012 RX 350:
Suspension – Rear Suspension – “Rear Suspension: Rear Shock Absorber: Installation”
• 2010 (03/2009 - 08/2009) / 2010 (08/2009 - ) / 2011 / 2012 RX 450h:
Suspension – Rear Suspension – “Rear Suspension: Rear Shock Absorber: Installation”
4. Drive the vehicle to confirm that squeak is not heard and oil is not leaking from the rear
shock absorber(s).
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TSB/Document ID: L-SB-0013-13
Replacement Service Bulletin Number:
MFR Communication Date: 2013-02-28
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: SUSPENSION:REAR:SHOCK ABSORBER
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
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