Frequently Asked Questions

How much does a check engine light diagnostic cost for a 2024 Lexus IS?

• Diagnostic fees vary, but our dealership offers competitive rates and transparent estimates before work begins.
• Choosing Nalley Lexus Smyrna often costs less than many independent shops thanks to efficient diagnostics and genuine parts that prevent repeat repairs.
• Any repairs covered under warranty must be performed at a certified dealership to preserve coverage—our factory-trained technicians complete that work precisely.
• We focus on immediate savings (accurate fixes the first time) and long-term savings (extended part life and warranty protection).

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

• Start with simple checks: a loose or damaged gas cap can trigger the light and is quick to fix.
• Monitor vehicle behavior—unusual noises, loss of power, or rough idle signal an urgent visit to the dealership.
• Bring your 2024 Lexus IS to Nalley Lexus Smyrna for a computerized scan; our OEM-grade tools identify codes quickly.
• Remember that warranty-covered repairs must be done at a certified dealership to maintain protection and long-term savings.

What does it mean when the check engine light comes on in a 2024 Lexus IS?

• The light indicates the vehicle’s onboard diagnostics (OBD-II) detected a fault—ranging from minor emissions issues to engine misfires.
• It does not always mean immediate danger, but it does require a prompt diagnostic scan to prevent escalation.
• Our factory-trained technicians use OEM tools to read codes and recommend repairs that often save money over time by avoiding secondary damage.
• For warranty work and the best long-term value, repairs should be carried out at a certified dealership like Nalley Lexus Smyrna.

What is the most common reason for check engine light on a 2024 Lexus IS?

• Common triggers include oxygen sensor faults, catalytic converter issues, ignition misfires, and EVAP system leaks.
• Many simple causes—such as a loose gas cap or fouled spark plugs—are inexpensive to fix when diagnosed early.
• Our dealership’s diagnostics reduce the chance of unnecessary part replacement and deliver cost-effective long-term solutions.
• Warranty-covered repairs must be performed at a certified dealership; we handle those repairs with genuine parts and factory-trained care.

How long does a check engine light service take?

• Basic diagnostics typically take under an hour; more complex issues requiring disassembly or road testing can take a few hours to a day.
• We provide time estimates up front and prioritize efficient repairs to minimize your downtime and overall cost.
• Factory-trained technicians and OEM tooling help resolve issues correctly the first time, delivering both immediate and long-term savings.
• If the repair is warranty-covered, work must be done at a certified dealership—our team handles paperwork and service to protect your coverage.