NHTSA ID Number: 10133909
Manufacturer Communication Number: L-SB-0086-11 Rev
TSB/Document Date: 2018-04-23
Summary
Under certain climactic conditions, some customers may experience an unpleasant odor coming from the face level HVAC vents during the initial 10 seconds of HVAC system operation. An HVAC Amplifier is now available with updated logic that will direct air away from the face level vents under certain temperature conditions during the first 10 seconds of HVAC operation.
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TSB/Document ID: L-SB-0086-11 Rev
Replacement Service Bulletin Number:
MFR Communication Date: 2013-01-08
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT:APPLIANCE:AIR CONDITIONER
MFR Component System:
MFR Component Subsystem:
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L-SB-0086-11
August 29, 2011
Rev1
HVAC Odor
Service
Category
Vehicle Interior
Section
Heating/Air Conditioning
USA
Market
Applicability
YEAR(S)
MODEL(S)
2010 – 2011
RX350
ADDITIONAL INFORMATION
REVISION NOTICE
January 8, 2013 Rev1:
• The Introduction section has been updated.
• The Parts information section has been updated.
Any previous printed versions of this bulletin should be discarded.
Introduction
Under certain climactic conditions, some customers may experience an unpleasant odor coming
from the face level HVAC vents during the initial 10 seconds of HVAC system operation. An HVAC
Amplifier is now available with updated logic that will direct air away from the face level vents under
certain temperature conditions during the first 10 seconds of HVAC operation.
This Service bulletin does NOT apply to the following conditions:
• The unpleasant odor continues after the initial 10 seconds of HVAC system operation
• The unpleasant odor does not begin immediately after the HVAC system is turned ON
• The unpleasant odor is present with the HVAC system OFF
© 2013 Lexus
, a division of Toyota Motor Sales, USA
Page 1 of 4
L-SB-0086-11
Rev1
August 29, 2011
Page 2 of 4
HVAC Odor
Introduction (Continued)
NOTE
If these conditions exist, consider the following information when diagnosing the source of
AC odors:
• During use, various odors from inside and
outside the vehicle may enter into and
accumulate in the air conditioning system.
This may then cause odor to be emitted
from the vents.
Figure 1.
1
2
• Odors coming from the outside air
and interior can accumulate on the
evaporator. As the evaporator core
changes temperature, some of these odors
may be released resulting in an unpleasant
smell from the HVAC vents.
3
• Interior odors from sources such as air
fresheners, animals, dirt, or trash can also
accumulate within the HVAC system and
contribute unpleasant odors.
• Setting the air conditioning system to the
outside air (Fresh) mode prior to turning
the vehicle OFF can help to minimize these
odors from accumulating.
4
1
Evaporator
2
Odor Source
3
Insoluble Odors Are Blown into Vehicle’s Interior
4
Water Soluble Odors Are Dissolved in the
Moisture on the Evaporator and Drain out
Evaporator Drain
© 2013 Lexus, a division of Toyota Motor Sales, USA
Rev1
L-SB-0086-11
August 29, 2011
Page 3 of 4
HVAC Odor
Production Change Information
This bulletin applies to the following vehicles:
• ALL 2010 RX350 vehicles.
• ALL 2011 RX350 vehicles produced BEFORE the Production Change Effective VINs shown
below.
PLANT
MODEL
TMC
RX350
TMMC
DRIVETRAIN
PRODUCTION CHANGE EFFECTIVE VIN
FF
JTJZK1BA#B2003353
AWD
JTJBK1BA#B2012108
FF
JTJZK1BA#B2411378
AWD
JTJBK1BA#B2433860
FF
2T2ZK1BA#BC049576
AWD
2T2BK1BA#BC095008
Parts Information
PART NAME
QTY
PREVIOUS PART NUMBER
CURRENT PART NUMBER
88650-48460
88650-48461
88650-48470
88650-48350
88650-48351
88650-48471
88650-0E031
88650-0E032
1
88650-0E041
88650-0E042
1
1
1
Amplifier Assy, Air Conditioner
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
AC1005
R & R AC Amplifier
0.7
88650-#####
60
54
APPLICABLE WARRANTY
• This repair is covered under the Lexus Comprehensive 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
L-SB-0086-11
Rev1
August 29, 2011
Page 4 of 4
HVAC Odor
Repair Procedure
1. Duplicate the condition by performing the following:
A. Park the vehicle outside.
B. Set the HVAC system to Low Fan Speed and Face Mode.
C. Turn the HVAC system OFF.
D. Turn the vehicle OFF.
E. Let the vehicle sit for at least 2 hours.
F. Turn vehicle ON.
G. Turn ON the HVAC system.
NOTE
If the unpleasant odor does not start immediately after the HVAC system is turned ON or
continues for more than 30 seconds this TSIB does not apply.
2. Remove the A/C Amplifier. Refer to the Technical Information System (TIS), applicable model
and model year Repair Manual:
• 2010 (to 08/2009) / 2010 (from 08/2009) / 2011 RX 350:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning Amplifier: Removal”
3. Install the updated A/C amplifier. Refer to TIS, applicable model and model year Repair Manual:
• 2010 (to 08/2009) / 2010 (from 08/2009) / 2011 RX 350:
Vehicle Interior – Heating/Air Conditioning – “Air Conditioning Amplifier: Installation”
4. Verify Proper HVAC System Operation
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