NHTSA ID Number: 10152199
Manufacturer Communication Number: T-SB-0079-18_Rev
TSB/Document Date: 2018-12-17
Summary
TSB: REVISION NOTICE November 21, 2018 Rev1: ? The Required Tools & Equipment section has been updated. Any previous printed versions of this bulletin should be discarded. Some 2010 model year Prius and Prius Plug-in Hybrid
vehicles may exhibit a condition where the brake, ABS, and/or TRAC warning light(s) are on and/or a Check VSC message displays. Diagnostic Trouble Codes (DTCs) C1252, C1253, C1256, and C1391 may be stored. This condition may be caused by a small internal brake fluid leak inside the brake booster assembly with master cylinder. Follow the Repair Procedure in this bulletin to address this condition.
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- Mixes well with conventional fluids
- Low-moisture formula provides excellent vapor lock...
- Ideal for hydraulic and disc brakes
- Provides an extra margin of safety in extreme braking...
- Mix of polyglycol ethers ensures hot brake-system operation...
- Excellent for ABS, disc and drum brake systems
- Delivers braking power when needed by avoiding a spongy...
- Both wet and dry boiling points exceed the minimum...
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TSB/Document ID: T-SB-0079-18_Rev
Replacement Service Bulletin Number:
MFR Communication Date: 2018-11-21
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
T-SB-0079-18
Rev1
August 6, 2018
ABS Brake Warning Light On
Service
Category
Brake
Section
Brake Control/Dynamic Control System
Market USA
Applicability
YEAR(S)
MODEL(S)
ADDITIONAL INFORMATION
2010
Prius, Prius PHV
WMI(s): JTD
Plant Code(s): -
REVISION NOTICE
November 21, 2018 Rev1:
The Required Tools & Equipment section has been updated.
Any previous printed versions of this bulletin should be discarded.
Introduction
Some 2010 model year Prius and Prius Plug-in Hybrid vehicles may exhibit a condition where
the brake, ABS, and/or TRAC warning light(s) are on and/or a Check VSC message displays.
Diagnostic Trouble Codes (DTCs) C1252, C1253, C1256, and C1391 may be stored. This
condition may be caused by a small internal brake fluid leak inside the brake booster assembly
with master cylinder. Follow the Repair Procedure in this bulletin to address this condition.
Warranty Information
MODEL
Prius
Prius PHV
OP CODE
DESCRIPTION
TIME
OFP
BR1802
R & R Brake Booster Assembly
With Master Cylinder,
R & R Brake Booster Pump Assembly, and
Reprogram Skid Control ECU
5.8
47050-47140
47050-47150
47070-47060
R & R Brake Booster Assembly
With Master Cylinder, and
R & R Brake Booster Pump Assembly
5.2
BR1804
T1
T2
8A
99
47050-47090
47070-47060
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.
© 2018 Toyota Motor Sales, USA
Page 1 of 4
T-SB-0079-18
Rev1
August 6, 2018
Page 2 of 4
ABS Brake Warning Light On
Parts Information
PART NUMBER
MODEL
Prius
Prius PHV
PART NAME
QTY
04002-33347
or
04002-33447
Brake Booster Assy W/Master Cylinder
1
47070-47060
04006-22147
Pump Assy, Brake Booster
1
47050-47090
04002-33647
Brake Booster Assy W/Master Cylinder
1
47070-47060
04006-22147
Pump Assy, Brake Booster
1
PREVIOUS
NEW
47050-47140
or
47050-47150
Required Tools & Equipment
REQUIRED EQUIPMENT
SUPPLIER
PART NUMBER
Techstream 2.0*
QTY
TS2UNIT
Techstream Lite
ADE
TSLITEPDLR01
Techstream Lite (Green Cable)
1
TSLP2DLR01
* Essential SST.
NOTE
Only ONE of the Techstream units listed above is required.
Software version 13.20.018 or later is required.
Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE)
at 1-800-368-6787.
REQUIRED TOOLS & MATERIAL
FLUID TYPE
QTY
DOT3 Brake Fluid
1 – 2 liters
© 2018 Toyota Motor Sales, USA
T-SB-0079-18
Rev1
August 6, 2018
Page 3 of 4
ABS Brake Warning Light On
Calibration Information
MODEL
Prius
ENGINE
2ZR-FXE
CALIBRATION ID
PREVIOUS
NEW
F152647107
F152647108
F152647109
F152647760
F152647127
F152647128
F152647129
F152647770
F152647340
F152647670
F152647780
F152647350
F152647660
F152647790
Repair Procedure
1. Confirm the condition exists.
Are the brake, ABS, and/or TRAC warning light(s) ON and/or does a Check VSC
message display?
YES — Continue to step 2.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
2. Using Techstream, check for stored DTCs. Record ANY stored DTCs.
Are ANY of the following DTCs stored:, C1252, C1253, C1256, or C1391?
YES — Continue to step 3.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
© 2018 Toyota Motor Sales, USA
T-SB-0079-18
Rev1
August 6, 2018
Page 4 of 4
ABS Brake Warning Light On
Repair Procedure (continued)
3. Replace the brake booster assembly with master cylinder and the brake booster pump
assembly with NEW parts.
Refer to TIS, applicable model and model year Repair Manual:
2010 Prius:
Brake – Brake System – “Brake System (Other): Brake Booster:
Removal / Installation”
2010 Prius:
Brake – Brake System – “Brake System (Other): Brake Booster Pump:
Removal / Installation”
2010 Prius PHV:
Brake – Brake System – “Brake System (Other): Brake Booster:
Removal / Installation”
2010 Prius PHV:
Brake – Brake System – “Brake System (Other): Brake Booster Pump:
Removal / Installation”
NOTE
Steps 4 and 5 do NOT apply to the Prius Plug-in Hybrid vehicle. Go to step 6 if the vehicle is a Prius
Plug-in Hybrid.
4. Using Techstream, confirm the calibration ID.
Refer to the Calibration Information table on page 3.
5. Update the skid control Engine Control Unit (ECU) to the latest calibration ID.
6. Test-drive the vehicle to confirm the repair.
© 2018 Toyota Motor Sales, USA
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