NHTSA ID Number: 10164332
Manufacturer Communication Number: L-SB-0032-19
TSB/Document Date: 2019-09-03
Summary
TSB: 2016 ? 2019 model year RX350 and RX350L vehicles may exhibit one or both of the following conditions: ? A bucking feeling (back and forth jerking that comes right after a shift but then dissipates quickly after 1 ? 2 and/or 2 ? 3 upshifts) ? A surge feeling (back and forth rocking that is not associated with transmission shifts) when the vehicle is traveling between 0 ? 46 mph, transmission is in 3rd ? 8th gear, and torque converter is in full lock-up The Engine Control Module/ECM (SAE Term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of these conditions. Follow the Repair Procedure in this bulletin to address these conditions.
L-SB-0032-19
July 2, 2019
Vehicle Bucking on 1 - 2 and/or 2 - 3 Upshifts and Surge
Between 0 - 46 mph
Service
Category
Engine/Hybrid
System
Section
Engine Control
Market USA
Applicability
YEAR(S)
MODEL(S)
2016 - 2019
RX350
ADDITIONAL INFORMATION
Introduction
Some 2016 – 2019 model year RX350 and RX350L vehicles may exhibit one or both of the
following conditions:
A bucking feeling (back and forth jerking that comes right after a shift but then dissipates
quickly after 1 – 2 and/or 2 – 3 upshifts)
A surge feeling (back and forth rocking that is not associated with transmission shifts)
when the vehicle is traveling between 0 – 46 mph, transmission is in 3rd – 8th gear, and
torque converter is in full lock-up
The Engine Control Module/ECM (SAE Term: Powertrain Control Module/PCM) logic has been
modified to reduce the possibility of these conditions. Follow the Repair Procedure in this bulletin
to address these conditions.
© 2019 Lexus, a division of Toyota Motor Sales, USA
Page 1 of 9
L-SB-0032-19
July 2, 2019
Page 2 of 9
Vehicle Bucking on 1 - 2 and/or 2 - 3 Upshifts and Surge Between 0 - 46 mph
Warranty Information
OP
CODE
DESCRIPTION
TIME
MODEL
NAME
MODEL
YEAR
2016
–
2017
2016
800269
(FRM)
Engine ECU
Reprogramming
(per FRM)
WMI
DRIVETRAIN
OFP
2WD
Non F-Sport
89661-0E76#
2WD
F-Sport
89661-0EA4#
4WD
Non F-Sport
89661-0E81#
4WD
F-Sport
89661-0E77#
4WD
Non F-Sport
89661-48N7#
89661-0E814
2WD
Non F-Sport
89661-0EE8#
2WD
F-Sport
89661-0EF0#
4WD
Non F-Sport
89661-0EE9#
4WD
F-Sport
89661-0EF1#
4WD
Non F-Sport
89661-48X0#
2WD
89661-48X1#
4WD
89661-48X2#
T1
T2
03
74
2T2
JTJ
RX350
0.7
2T2
2018
–
2019
JTJ
RX350L
APPLICABLE WARRANTY
This repair is covered under the Lexus Federal Emissions Warranty. This warranty is in effect
for 96 months or 80,000 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.
© 2019 Lexus, a division of Toyota Motor Sales, USA
L-SB-0032-19
July 2, 2019
Page 3 of 9
Vehicle Bucking on 1 - 2 and/or 2 - 3 Upshifts and Surge Between 0 - 46 mph
Parts Information
PART NUMBER
MODEL NAME
MODEL YEAR
2016 – 2017
2016
WMI
DRIVETRAIN
PREVIOUS
NEW
2WD
Non F-Sport
89661-0E76#
89661-0E765
2WD
F-Sport
89661-0EA4#
89661-0EA44
4WD
Non F-Sport
89661-0E81#
89661-0E815
4WD
F-Sport
89661-0E77#
89661-0E775
4WD
Non F-Sport
89661-48N7#
89661-0E814
89661-0E815
2WD
Non F-Sport
89661-0EE8#
89661-0EE82
2WD
F-Sport
89661-0EF0#
89661-0EF02
4WD
Non F-Sport
89661-0EE9#
89661-0EE92
4WD
F-Sport
89661-0EF1#
89661-0EF12
4WD
Non F-Sport
89661-48X0#
89661-48X02
2WD
89661-48X1#
89661-48X12
4WD
89661-48X2#
89661-48X22
PART NAME
QTY
Computer, Engine
Control (ECM)
–
Computer, Engine
Control (ECM)
–
Authorized
Modifications Labels
1
2T2
JTJ
RX350
2T2
2018 – 2019
JTJ
RX350L
–
–
–
–
00451-00001-LB L
NOTE
The ECM (PCM) should NOT be replaced as part of the Repair Procedure.
Authorized Modifications Labels may be ordered in packages of 25 from the Materials
Distribution Center (MDC) through Dealer Daily – Parts – Dealer Support Materials Orders.
© 2019 Lexus, a division of Toyota Motor Sales, USA
L-SB-0032-19
July 2, 2019
Page 4 of 9
Vehicle Bucking on 1 - 2 and/or 2 - 3 Upshifts and Surge Between 0 - 46 mph
Required Tools & Equipment
REQUIRED EQUIPMENT
SUPPLIER
PART NUMBER
Techstream ADVi*
Techstream 2.0
Techstream Lite
QTY
TSADVUNIT
TS2UNIT
ADE
1
TSLITEPDLR01
Techstream Lite (Green Cable)
TSLP2DLR01
*Essential SST.
NOTE
Only ONE of the Techstream units listed above is required.
Software version 14.10.028 or later is required.
Additional Techstream units may be ordered by calling Approved Dealer
Equipment (ADE) at 1-800-368-6787.
Use Techstream or an approved J2534 interface to perform flash reprogramming updates.
Visit techinfo.toyota.com for more information regarding J2534 reprogramming.
SPECIAL SERVICE TOOLS (SST)
PART NUMBER
QTY
GR8 Battery Diagnostic Station*
or Battery Diagnostic Tool*
00002-MCGR8
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TSB/Document ID: L-SB-0032-19
Replacement Service Bulletin Number:
MFR Communication Date: 2019-07-02
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: POWER TRAIN
MFR Component System:
MFR Component Subsystem:
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