Frequently Asked Questions

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

• Check gas cap tightness — a loose or damaged cap is a common, simple cause on a 2013 Lexus IS 350 C and can trigger evaporative leak codes.
• Verify fuel type and fill history — this model requires premium unleaded; wrong fuel or recent misfueling can set codes.
• Look for obvious issues — low oil, coolant leaks, or dashboard messages may guide priority actions before diagnostics.
• Bring the vehicle to Nalley Lexus Smyrna — our factory-trained technicians use OEM scanners to read codes and recommend repairs that protect your warranty.

How long does a check engine light service take?

• Basic diagnostic scan: typically 30–60 minutes to read codes and provide an initial assessment for a 2013 Lexus IS 350 C.
• Comprehensive inspection: 1–3 hours depending on the issue, road-test needs, and component access.
• Repairs vary by diagnosis; simple fixes like sensors or caps can be same-day while complex repairs may require parts ordering.
• Choosing Nalley Lexus Smyrna often saves time and money — our streamlined workflow, OEM parts, and trained staff expedite repairs while protecting warranty coverage.

What does it mean when the check engine light comes on in a 2013 Lexus IS 350 C?

• A check engine light signals that an emissions or engine control issue has been detected by the vehicle’s computer.
• On this V6 3.5L model, causes range from loose gas caps or sensors to misfires or catalytic converter problems; diagnostic testing identifies the precise cause.
• Nalley Lexus Smyrna recommends prompt inspection — early diagnosis often prevents more costly repairs and preserves long-term value.
• Repairs covered under warranty must be performed at a certified dealership to maintain coverage and ensure OEM parts and procedures are used.

How much does a check engine light diagnostic cost for a 2013 Lexus IS 350 C?

• Diagnostic fees can vary, but Nalley Lexus Smyrna provides competitive pricing and transparent estimates for 2013 Lexus IS 350 C diagnostics.
• Our dealership often costs less than independent shops when factoring immediate savings from accurate diagnosis, OEM parts, and long-term avoided repairs.
• If covered repairs fall under warranty, they must be performed at a certified dealership to remain valid; our technicians ensure warranty compliance.
• We provide clear cost breakdowns before any work begins so you can weigh immediate repair needs against long-term savings and performance.

What is the most common reason for check engine light on a 2013 Lexus IS 350 C?

• Common causes include oxygen sensor degradation, catalytic efficiency issues, ignition misfires, and evaporative emission leaks.
• A loose or faulty gas cap frequently triggers EVAP codes and is an easy first check for this model.
• Fuel quality, aging sensors, and neglected maintenance increase the likelihood of these faults; timely service prevents escalation.
• Nalley Lexus Smyrna’s diagnostics identify the root cause quickly so repairs are precise, cost-effective, and warranty-safe when applicable.