2023 Lexus LS 500h Check Engine Light Reset

Resetting the check engine light on a 2023 Lexus LS 500h may seem simple, but a true reset requires diagnosing and addressing the underlying fault to prevent recurrence. At Nalley Lexus Roswell our service team uses Lexus factory diagnostic tools to read codes, clear historical faults and confirm successful repairs. DIY resets or independent shops may temporarily extinguish the light, but recurring issues can go undetected and void warranty coverage. Many warranty repairs require work at a certified dealership to remain valid. Choosing Nalley Lexus Roswell often costs less than independent shops when you factor immediate savings from accurate diagnostics, long-term avoidance of repeat repairs, and the protection of factory-trained technicians. Schedule service via https://www.nalleylexusroswell.com/specials/service.htm or call for an appointment.

2023 Lexus LS 500h Check Engine Light Flashing

A flashing check engine light on your 2023 Lexus LS 500h signals an immediate engine misfire or a condition that can damage the catalytic converter. This is a potential emergency that should not be driven for long distances. Nalley Lexus Roswell recommends stopping safely and having our technicians perform on-site diagnostics to prevent further damage. Our factory-trained team can identify ignition, fuel, or sensor failures, and perform repairs with OEM parts to preserve vehicle longevity and warranty eligibility. Repairs covered under warranty must be completed at a certified dealership to remain valid. Choosing our dealership often yields lower total cost than independent shops because accurate diagnosis prevents repeat repairs and protects long-term vehicle value. Contact us and use https://www.nalleylexusroswell.com/specials/service.htm to arrange expedited service.

2023 Lexus LS 500h Check Engine Light Codes

Common check engine codes on a 2023 Lexus LS 500h include P0300 (random/multiple misfires), P0420 (catalyst efficiency below threshold), P0171/P0174 (fuel trim lean/rich), P0455/P0456 (EVAP leaks), and oxygen sensor faults (P0135). Left unaddressed, misfires can damage cylinder walls and catalytic converters, escalating repair costs from modest ignition repairs ($100–$600) to catalytic replacement ($1,000–$3,000+). EVAP leaks often stem from a loose or faulty gas cap but can lead to failed emissions tests and fines. Oxygen sensor failures reduce fuel economy and increase emissions, costing more in fuel over time. Nalley Lexus Roswell diagnoses codes with factory tools and explains immediate and long-term savings; warranty repairs must be performed at a certified dealership to stay covered.

For service, parts, or to schedule an appointment at Nalley Lexus Roswell in Roswell, GA visit our service specials at https://www.nalleylexusroswell.com/specials/service.htm. See all inventory at https://www.nalleylexusroswell.com/all-inventory/index.htm or explore new and used options at https://www.nalleylexusroswell.com/new-inventory/index.htm and https://www.nalleylexusroswell.com/used-inventory/index.htm. Learn about trade-in options at https://www.nalleylexusroswell.com/sell-your-car-online.htm.