Frequently Asked Questions

What is the first thing to check when the check engine light comes on?

• Check for obvious issues first: a loose or missing gas cap can set the light and is an easy, low-cost fix.
• Note any drivability changes—stumbles, reduced power, or fluctuating idle—and tell our technicians when you arrive.
• Bring your 2017 Lexus ES 300h to Nalley Lexus Smyrna so our factory-trained team can scan with Lexus-grade tools and confirm codes.
• Repairs covered under warranty must be completed at a certified dealership to preserve coverage and long-term value.

What does it mean when the check engine light comes on in a 2017 Lexus ES 300h?

• It indicates the vehicle’s onboard diagnostics (OBD) has detected an emissions, engine, or drivetrain issue that needs attention.
• Codes range from minor emissions items to more serious misfires or sensor failures; our technicians interpret these to recommend repairs.
• Nalley Lexus Smyrna often costs less than independent shops while delivering factory-level diagnostics, genuine parts, and warranty protection.
• Timely dealership repairs give immediate savings by preventing escalation and long-term savings by avoiding costly secondary damage.

How much does a check engine light diagnostic cost for a 2017 Lexus ES 300h?

• Diagnostic fees vary; at Nalley Lexus Smyrna we provide clear pricing up front and explain recommended repairs after scanning the vehicle.
• Because we use factory tools and certified procedures, diagnostics are accurate—reducing unnecessary parts replacement and saving money.
• Dealership service often costs less than independent shops when you factor in correct repairs, warranty coverage, and long-term reliability.
• Any repairs covered under warranty must be done at a certified dealership to ensure coverage and future savings.

How long does a check engine light service take?

• Basic code read and initial assessment typically take under an hour; full diagnostics and repair time depend on the issue identified.
• Minor fixes, like replacing a sensor or tightening a gas cap, can be same-day services; more complex repairs may require parts ordering.
• Our service advisors provide accurate time estimates and prioritize efficient, correct repairs to minimize downtime and long-term costs.
• Warranty-covered work must be performed at a certified dealership to preserve coverage and ensure proper labor and parts usage.

What is the most common reason for check engine light on a 2017 Lexus ES 300h?

• Common culprits include oxygen sensor failures, loose gas caps, evaporative emissions leaks, or ignition misfires.
• Ignoring these codes can lead to poor fuel economy, increased emissions, and expensive downstream failures such as catalytic converter damage.
• Bringing your ES 300h to Nalley Lexus Smyrna ensures accurate diagnosis by factory-trained technicians and genuine parts replacement if needed.
• Dealership repairs typically yield immediate and long-term savings compared with repeat attempts elsewhere, and warranty repairs must be done at a certified dealer.