L-SB-0033-20
Service Bulletin Details
Public Details for: L-SB-0033-20
Models from 2012
2012 LEXUS RX HYBRID |
2012 LEXUS RX450H |
Models from 2011
2011 LEXUS RX HYBRID |
2011 LEXUS RX450H |
Models from 2010
2010 LEXUS RX450H |
L-SB-0033-20 August 31, 2020 ABS Warning Light On Service Category Brake Section Brake Control/Dynamic Control System Market USA Applicability YEAR(S) MODEL(S) 2010 - 2012 RX450H ADDITIONAL INFORMATION Introduction Some 2010 – 2012 model year RX 450H 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. Warranty Information MODEL YEAR OP CODE DESCRIPTION TIME OFP T1 T2 2010 – 2012 BR1916 R & R Brake Actuator Assembly, and Brake Booster Pump Assembly 2.3 44050-48320 8C 99 APPLICABLE WARRANTY This repair is covered under the Lexus Basic Warranty. This warranty is in effect for 48 months or 50,000 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 Lexus, a division of Toyota Motor Sales, USA Page 1 of 3 L-SB-0033-20 August 31, 2020 Page 2 of 3 ABS Warning Light On Parts Information PART NUMBER MODEL YEAR 2010 – 2012 2010 PREVIOUS NEW 44050-48320 04008-26448 47070-48060 44598-50010 04008-51248 47070-48020 44598-50010 04008-51148 PART NAME QTY Brake Actuator Assembly 1 1 Pump Kit, Brake Booster W/ Accumulator 1 Required Tools & Equipment REQUIRED EQUIPMENT SUPPLIER PART NUMBER Techstream ADVi* Techstream 2.0 Techstream Lite QTY TSADVUNIT TS2UNIT ADE TSLITEPDLR01 Techstream Lite (Green Cable) TSLP2DLR01 *Essential SST. NOTE Only ONE of the Techstream units listed above is required. Software version 14.30.022 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 Dot 3 Brake Fluid 00475-1BF03 1 – 2 liters © 2020 Lexus, a division of Toyota Motor Sales, USA 1 L-SB-0033-20 August 31, 2020 Page 3 of 3 ABS Warning Light On Repair Procedure 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. Using Techstream, check for and record ANY stored DTCs. Are ANY of the following DTCs stored: C1391, C1256, C1252, or C1253? YES — Continue to step 3. NO — This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual. Remove the brake actuator and brake booster pump. Refer to TIS, applicable model and model year Repair Manual: 2010 / 2011 / 2012: Brake – Brake Control/Dynamic Control System – “Brake Control / Dynamic Control Systems: Brake Actuator: Removal” Install the NEW brake actuator and brake booster pump. Refer to TIS, applicable model and model year Repair Manual: 2010 / 2011 / 2012: Brake – Brake Control/Dynamic Control System – “Brake Control / Dynamic Control Systems: Brake Actuator: Installation” Clear codes and test-drive the vehicle to ensure the condition is no longer present. © 2020 Lexus, a division of Toyota Motor Sales, USA