MG
Moderator
Please see T-SB-0089-20
Vehicle may be involved in CSP 20TE07
Applicability:
2012-2014 Toyota Prius V
Introduction:
Some 2012 – 2014 model year Prius V 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) C1391, C1252, C1256, or C1253 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.
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.
Repair Procedure:
1. Confirm the condition exists. Is 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 DTCs. 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
3. Remove the brake booster assembly with master cylinder.
4. Remove the brake booster pump assembly.
5. Install the NEW brake booster assembly with master cylinder.
6. Install the NEW brake booster pump assembly
7. Clear codes and test-drive the vehicle to ensure the condition is no longer present.
Vehicle may be involved in CSP 20TE07
Applicability:
2012-2014 Toyota Prius V
Introduction:
Some 2012 – 2014 model year Prius V 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) C1391, C1252, C1256, or C1253 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.
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.
Repair Procedure:
1. Confirm the condition exists. Is 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 DTCs. 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
3. Remove the brake booster assembly with master cylinder.
4. Remove the brake booster pump assembly.
5. Install the NEW brake booster assembly with master cylinder.
6. Install the NEW brake booster pump assembly
7. Clear codes and test-drive the vehicle to ensure the condition is no longer present.