Technical Service Bulletin L-SB-0036-22 Rev2 — 2023 LEXUS RX
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | L-SB-0036-22 Rev2 |
| Manufacturer | |
| Vehicle | 2023 LEXUS RX |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Global Techstream+ (GTS+) ECU flash reprogramming procedures and outlines use of the Technical Information System (TIS) and the Calibration Update Wizard+ (CUW+). To ensure the correct ECU software is installed, ECUs will require a Security Signature before the ECU will initialize the flash reprogramming sequence. This bulletin also details the process for acquiring a Security Signature from TIS during the GTS+ ECU flash reprogramming process.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2023 LEXUS RX
L-SB-0013-24 Rev1
ELECTRICAL SYSTEM
23LJ01
UNKNOWN OR OTHER
L-SB-0018-24 Rev1
STRUCTURE:BODY
L-SB-0028-24
POWER TRAIN
23LJ01 Eligibility
UNKNOWN OR OTHER
LSB005923
POWER TRAIN
LSB005923
ENGINE AND ENGINE COOLING
LSB005623
ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
LSB005623
ELECTRICAL SYSTEM
23LD03_Dealer Pa
ELECTRICAL SYSTEM