This reference represents the exact applicability stated by Lexus service bulletin L-SB-0045-12 Rev1: some US-market 2010–2017 RX 450h vehicles with the 2GR-FXE engine may have the bulletin’s cold-start rough-running or misfire-code condition. It spans multiple model years and must not be interpreted as a chassis-generation definition.
Apply the bulletin only after confirming the model, market, model year, operating condition and diagnostic evidence. The source repeatedly directs technicians back to the applicable model-year repair manual when its entry conditions or injector inspection result do not match.