Frequently Asked Questions

How much does a check engine light diagnostic cost for a 2024 Lexus RX 350?

• Typical diagnostic fees vary; many issues can be identified during a single visit. Ask Nalley Lexus Smyrna for an upfront quote.
• Our dealership often costs less than independent shops because we combine efficient diagnostics with factory-trained technicians and targeted repairs, creating immediate and long-term savings.
• When repairs are covered by warranty, work must be performed at a certified dealership to maintain coverage and ensure genuine parts are used.
• We provide clear estimates and explain options so you pay only for necessary repairs and avoid repeat visits.

What does it mean when the check engine light comes on in a 2024 Lexus RX 350?

• It signals the vehicle’s onboard diagnostics detected an emissions, engine, or drivetrain issue—ranging from a loose gas cap to a misfire.
• Codes stored in the system point technicians to the subsystem affected; a full scan clarifies severity and next steps.
• Early diagnosis at Nalley Lexus Smyrna reduces the risk of cascading damage and preserves long‑term value.
• If the issue is warranty-covered, having repairs performed at our certified dealership ensures the repair is documented and the warranty remains valid.

What is the most common reason for check engine light on a 2024 Lexus RX 350?

• Common causes include a loose or faulty gas cap, oxygen sensor wear, ignition misfires, or problems with the evaporative emissions system.
• Many of these start small but can grow into costly repairs if ignored—prompt dealer evaluation limits expense and downtime.
• Nalley Lexus Smyrna’s diagnostics pinpoint root causes so you avoid unnecessary parts replacement and benefit from accurate repairs.
• For covered items, repairs must be completed at a certified dealership to protect warranty coverage and vehicle integrity.

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

• Start with the basics: confirm the gas cap is tightened and undamaged; a loose cap can trigger a code immediately.
• If the light persists, schedule a diagnostic at Nalley Lexus Smyrna so our technicians can read trouble codes with OEM-grade scanners.
• Do not ignore the light: diagnosing early avoids escalation and delivers both immediate savings and long-term protection for your RX 350.
• Remember: warranty-covered repairs must be performed at a certified dealership to remain eligible.

How long does a check engine light service take?

• Simple diagnostics and minor fixes, like tightening a gas cap or replacing a sensor, can often be completed within an hour or two.
• More involved issues—misfires, catalytic converter replacement, or complex intermittent faults—may require longer inspection and test drives.
• Nalley Lexus Smyrna prioritizes transparent timelines and will provide an estimated completion window before work begins.
• Using the dealership can save time overall: accurate diagnostics reduce repetitive visits and ensure repairs are done right the first time.