SYSTEM DIAGRAM
w/ Manual (SOS) Switch
w/o Manual (SOS) Switch
for 9 Speakers
for 12 Speakers 
Parts Location
System DescriptionLexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Rear No. 1 Seat Inner Belt Assembly(for Captain Seat Type): Removal
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during rear No. 1 seat inner belt assembly removal/installation are shown below. Necessary Procedure After Part ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Audio And Visual System (for 8 Inch Display): Certification ECU Vehicle Information Reading/Writing Process Malfunction (B15F7)
DESCRIPTION This DTC is stored when items controlled by the certification ECU (smart key ECU assembly) cannot be customized via the audio and visual system vehicle customization screen. HINT: The certification ECU (smart key ECU assembly) controls the smart access system with push-button start (for ...