A P0302 code on your 2022 Lexus RX indicates that the engine control module has detected cylinder 2 misfires beyond acceptable parameters. This luxury crossover demands proper diagnosis to maintain its refined driving experience.
2022 RX Powertrain Configuration
The 2022 Lexus RX featured the 3.5L V6 engine in standard form (RX 350) or paired with a hybrid system (RX 450h). Both configurations use Toyota's reliable V6 architecture, though each has specific diagnostic considerations.
V6 Engine Characteristics
The 3.5L V6 is a naturally aspirated engine with direct injection and port injection (D-4S system). This dual-injection design helps prevent carbon buildup that affects some direct injection-only engines. Cylinder 2 is located on the front bank.
Hybrid System Interaction
In the RX 450h hybrid, the V6 works with electric motors. Misfires affect the combustion engine specifically. The hybrid system may mask some misfire symptoms during electric-assisted driving, so diagnosis requires careful attention.
Lexus Quality Standards
Lexus vehicles are known for exceptional reliability. Misfires, while uncommon, can occur due to component wear or isolated failures. The brand's rigorous quality standards mean most issues are covered under warranty during the coverage period.
Diagnostic Excellence
Lexus dealers use factory diagnostic equipment and follow Toyota/Lexus diagnostic procedures. Their technicians are specifically trained on Lexus vehicles. For warranty-covered repairs, dealer diagnosis ensures proper documentation.