T-SB-0115-20

Service Bulletin Details

Public Details for: T-SB-0115-20

Tsb: some 2015 model year prius v 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) C1391, C1252, C1256, or C1253 may be stored. T

- 2015 -

Models from 2015

2015 TOYOTA PRIUS V

T-SB-0115-20
November 24, 2020
ABS Warning Light On
Service
Category
Brake
Section
Brake Control/Dynamic Control System
Market USA
Applicability
YEAR(S)
MODEL(S)
2015
Prius V
ADDITIONAL INFORMATION
Introduction
Some 2015 model year Prius V 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) C1391,
C1252, C1256, or C1253 may be stored. This condition may be caused by a small internal brake fluid leak in
the brake booster assembly with master cylinder. Follow the Repair Procedure in this bulletin to address
this condition.
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
BR1918
R & R Brake Booster Assembly With
Master Cylinder
and
Brake Booster Pump Assembly
5.0
47050-47360
47070-12020
8A
99
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.
© 2020 Toyota Motor Sales, USA
Page 1 of 3
T-SB-0115-20
November 24, 2020
Page 2 of 3
ABS Warning Light On
Parts Information
PART NUMBER
PREVIOUS
PART NAME
QTY
04000-23876
Brake Master Cylinder Kit
1
04006-22212
Brake Booster Pump Assembly
1
NEW
47050-47360
44785-12040
90468-16142
47070-12020
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
 Only ONE of the Techstream units listed above is required.
 Software version 15.30.027 or later is required.
 Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE)
at 1-800-368-6787.
REQUIRED TOOLS & MATERIAL
PART NUMBER
QUANTITY
Toyota DOT3 Brake Fluid
00475-1BF03
1 – 2 Liters
© 2020 Toyota Motor Sales, USA
T-SB-0115-20
November 24, 2020
Page 3 of 3
ABS Warning Light On
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.
Using Techstream, check for and record ANY stored DTCs.
Are ANY of the following DTCs stored: C1391, C1252, C1256, or C1253?

YES — Continue to step 3.

NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
Remove the brake booster assembly with master cylinder.
Refer to TIS, applicable model and model year Repair Manual:

2015 Prius V:
Brake – Brake System – “Brake System (Other): Brake Booster: Removal”
Remove the brake booster pump assembly.
Refer to TIS, applicable model and model year Repair Manual:

2015 Prius V:
Brake – Brake System – “Brake System (Other): Brake Booster Pump: Removal”
Install the NEW brake booster assembly with master cylinder.
Refer to TIS, applicable model and model year Repair Manual:

2015 Prius V:
Brake – Brake System – “Brake System (Other): Brake Booster: Installation”
Install the NEW brake booster pump assembly.
Refer to TIS, applicable model and model year Repair Manual:

2015 Prius V:
Brake – Brake System – “Brake System (Other): Brake Booster Pump: Installation”
Using Techstream, clear ANY stored DTCs and test-drive the vehicle to confirm the condition
is no longer present.
© 2020 Toyota Motor Sales, USA