T-SB-0083-23

T-SB-0083-23
October 17, 2023
Abnormal Fuel Gauge Operation
Service
Category
Vehicle Interior
Market USA and
Section
Mexico
Meter/Gauge/Display
Applicability
YEAR(S)
MODEL(S)
2021 - 2022
Sienna HV
ADDITIONAL INFORMATION
Introduction
Some 2021 – 2022 model year Sienna Hybrid vehicles may exhibit a condition in which the fuel
gauge reading changes when the vehicle is driven up or down an incline and left at an angle of up
to 15° for five minutes or longer. The combination meter assembly ECU logic has been modified to
reduce the possibility of this condition. Follow the Repair Procedure in this bulletin to reprogram
the combination meter assembly ECU.
© 2023 Toyota Motor Sales, USA
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T-SB-0083-23
October 17, 2023
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Abnormal Fuel Gauge Operation
Table of Contents


Warranty Information ...............................................................................................................3

For USA Market .................................................................................................................3

For Mexico Market .............................................................................................................3
Parts Information .....................................................................................................................4

For USA Market .................................................................................................................4

For Mexico Market .............................................................................................................4

Required Tools & Equipment ...................................................................................................5

Calibration Information.............................................................................................................6

Repair Procedure ....................................................................................................................7
© 2023 Toyota Motor Sales, USA
T-SB-0083-23
October 17, 2023
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Abnormal Fuel Gauge Operation
Warranty Information
For USA Market
OP CODE
MODEL YEAR
DISPLAY SIZE
DESCRIPTION
TIME
2021
4”
4” and 7”
1.2
2022
Reprogram the
Combination
Meter Assembly ECU
EL2306
Combo A
2021
7”
Additional Time Required
to Reprogram the
Combination
Meter Assembly ECU
OFP
T1
T2
83800-08###*
87
74
2.8
*Warranty claim MUST be submitted with the correct 10-digit OFP. Choose the correct OFP for the vehicle being repaired
by searching for the parts in the Electronic Parts Catalog using the VIN filter.
APPLICABLE WARRANTY
 This repair is covered under the Toyota Basic Warranty. This warranty is in effect for 36 months
or 36,000 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.
For Mexico Market
OP CODE
MODEL YEAR
DISPLAY SIZE
2021
EL2306
2022
7”
Combo A
2021
DESCRIPTION
TIME
Reprogram the
Combination
Meter Assembly ECU
1.2
Additional Time Required
to Reprogram the
Combination
Meter Assembly ECU
OFP
T1
T2
83800-08###*
87
74
2.8
*Warranty claim MUST be submitted with the correct 10-digit OFP. Choose the correct OFP for the vehicle being repaired
by searching for the parts in the Electronic Parts Catalog using the VIN filter.
APPLICABLE WARRANTY
 This repair is covered under the Toyota Basic Warranty. This warranty is in effect for 36 months
or 60,000 kilometers, whichever occurs first, from the vehicle’s in-service date.
 Warranty application is limited to occurrence of the specified condition described in
this bulletin.
© 2023 Toyota Motor Sales, USA
T-SB-0083-23
October 17, 2023
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Abnormal Fuel Gauge Operation
Parts Information
For USA Market
PART NUMBER
PREVIOUS
NEW
83800-08B11
83800-08B12
83800-08B51
83800-08B52
83800-08C21
83800-08C22
PART NAME
QTY.
Meter Assy, Combination
–
83800-08C70
83800-08D10
83800-08D40
NOTE
The combination meter assembly should NOT be replaced as part of the Repair Procedure.
For Mexico Market
PART NUMBER
PREVIOUS
NEW
83800-08C01
83800-08C02
PART NAME
QTY.
Meter Assy, Combination
–
83800-08D30
NOTE
The combination meter assembly should NOT be replaced as part of the Repair Procedure.
© 2023 Toyota Motor Sales, USA
T-SB-0083-23
October 17, 2023
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Abnormal Fuel Gauge Operation
Required Tools & Equipment
REQUIRED EQUIPMENT
SUPPLIER
Techstream ADVI*
PART NUMBER
QTY
TSADVUNIT
Techstream 2.0
TS2UNIT
ADE
1
Techstream Lite
TSLITEPDLR01
Techstream Lite (Green Cable)
TSLP2DLR01
*Essential SST.
NOTE
Additional SSTs may be ordered by calling 1-800-933-8335 (USA) or 01-800-504-5330 (Mexico).
SPECIAL SERVICE TOOLS (SST)
PART NUMBER
QTY
Battery Diagnostic Tool*
DCA-8000P T
1
*Essential SST.
NOTE
 Only ONE of the Techstream units listed above is required.
 GTS+ software version 2023.03.002.02 or later is required.
 Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE)
at 1-800-368-6787 (USA) or 01-55-50103041 (Mexico).
 Use Techstream or an approved J2534 interface to perform flash reprogramming updates.
Visit techinfo.toyota.com for more information regarding J2534 reprogramming.
© 2023 Toyota Motor Sales, USA
T-SB-0083-23
October 17, 2023
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Abnormal Fuel Gauge Operation
Calibration Information
CALIBRATION ID
MODEL YEAR
DESTINATION
DISPLAY SIZE
CID NO.
PREVIOUS
USA
4”
2021
USA,
Mexico
2022
7”
USA
4”
USA,
Mexico
7”
CID 1
8380008B510D
8380008B510E
CID 2
8380008B5205
CID 3
8380008B5305
CID 1
8380008B110E
8380008B110F
CID 2
8380008B1207
CID 3
8380008B1307
CID 1
NEW
8380008B510F /
8380008B5206 /
8380008B5306
8380008B1110 /
8380008B1208 /
8380008B1308
8380008D1103
8380008D1104
8380008C7103
8380008C7104
© 2023 Toyota Motor Sales, USA
T-SB-0083-23
October 17, 2023
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Abnormal Fuel Gauge Operation
Repair Procedure
1. Confirm the condition exists.
Does the fuel gauge reading change when the vehicle is driven up or down an incline and left
at an angle of up to 15° for five minutes or longer?

YES — Continue to step 2.

NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
2. Use GTS+ to confirm if the combination meter assembly calibration has been updated.
Is the calibration ID listed in GTS+ the latest combination meter assembly calibration?

YES — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.

NO — Continue to step 3.
NOTICE
Flash reprogramming can take MORE THAN 60 minutes to complete, and the vehicle will
turn the IG-OFF automatically when it has passed about 60 minutes with IG-ON while the
shift lever is in the P position. Therefore, it is necessary to perform steps 3 – 5 BEFORE
flash reprogramming the combination meter assembly.
3. Apply wheel blocks and the parking brake.
Figure 1.
1
c
2
c
1
Wheel Blocks
2
Parking Brake
© 2023 Toyota Motor Sales, USA
T-SB-0083-23
October 17, 2023
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Abnormal Fuel Gauge Operation
Repair Procedure (continued)
4. Move the shift lever to the Neutral
(N) position.
Figure 2.
1
c
2
c
1
Shift Lever
2
N Position
5. Prepare the GTS+ for reprogramming.
NOTICE
An ECU could be damaged if an error occurs in the communication while reprogramming the
ECU. Confirm ALL work is performed as described in step 5.
A. Connect the GTS+ to an external AC
power supply.
Figure 3.
1
c
NOTICE
2
c
The ECU could be damaged if the
battery voltage of the GTS+ drops
while reprogramming.
B. Turn OFF the screen saver and power
saving mode of the GTS+.
1
GTS+ or Computer
2
AC Power Supply
Figure 4.
NOTICE
1
c
If the screen saver or power saving
mode launches while reprogramming,
the communication may
be disconnected.
1
© 2023 Toyota Motor Sales, USA
Turn Off the Screensaver and Power
Saving Mode
T-SB-0083-23
October 17, 2023
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Abnormal Fuel Gauge Operation
Repair Procedure (continued)
C. Do NOT block the ventilation opening
for the cooling fan of the GTS+.
Figure 5.
NOTICE
If the ventilation opening for the
cooling fan is blocked with a sheet
cover or similar, the GTS+ may
overheat, causing reprogramming to
stop and potentially damaging
the ECU.
1
c
1
Do Not Block the Ventilation Opening for the
Cooling Fan
6. Flash reprogram the combination meter assembly.
NOTE
 The battery diagnostic tool MUST be used in Power Supply Mode to maintain battery voltage
at 13.5V while flash reprogramming the vehicle.
 For details on how to use the battery diagnostic station, refer to the DCA-8000 Instruction Manual
located at TIS – Diagnostics – Tools & Equipment – Battery Diagnostics.
Follow the procedures outlined in T-SB-0107-20 GTS+ Techstream ECU Flash
Reprogramming Procedure With Security Signature, and flash the combination meter
assembly with the NEW calibration file update.
7. Using GTS+, perform a Health Check to confirm if the combination meter has been updated
and clear ANY stored DTCs.
8. Confirm the condition no longer exists.
© 2023 Toyota Motor Sales, USA