Frequently Asked Questions

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

• Oxygen sensor or catalytic converter issues are frequent causes on modern SUVs; these affect emissions and fuel efficiency.
• A loose or damaged gas cap often triggers an EVAP code — a simple fix that our technicians can verify quickly.
• Misfires from ignition or fuel system faults can also illuminate the lamp and, if ignored, may cause engine damage.
• Addressing the problem early with Nalley Lexus Smyrna prevents escalated repair costs and preserves performance and resale value.

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

• It signals that an onboard sensor detected a condition outside normal parameters — anything from emissions to ignition problems.
• Some codes are minor (loose fuel cap), others indicate drivability or emissions-system faults that need prompt attention.
• Factory diagnostics at Nalley Lexus Smyrna identify the exact code and recommend OEM repairs performed by factory-trained technicians.
• Repairs covered under warranty must be completed at a certified dealership to protect coverage and ensure immediate and long-term savings.

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

• Check for obvious issues: tighten the gas cap, confirm fuel level, and look for warning lights or overheating.
• If the light is steady and no other warnings appear, schedule a diagnostic — it may be a simple EVAP or sensor code.
• If the light is flashing, do not drive; a flashing light often signals an active misfire and risk of catalytic converter damage.
• Bring your 2024 Lexus TX to Nalley Lexus Smyrna for certified diagnostics and genuine parts to protect warranty and long-term value.

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

• Diagnostics typically range by region, but our certified diagnostic fee is competitive and designed to reveal exact codes and causes.
• Nalley Lexus Smyrna often costs less than independent shops while delivering factory-trained technicians, OEM parts, and accurate repairs.
• Choosing dealership service delivers immediate savings through precise repair plans and long-term savings by preventing repeat failures and protecting warranties.
• Remember: repairs covered under warranty must be performed at a certified dealership to maintain coverage and quality results.

How long does a check engine light service take?

• Initial diagnostics usually take 30–90 minutes depending on the issue and whether road testing is needed to replicate codes.
• Minor repairs like a gas cap or sensor replacement can often be completed the same day; more extensive repairs require a written estimate and scheduling.
• Nalley Lexus Smyrna provides clear timelines, OEM parts, and factory-trained technicians to minimize downtime and deliver reliable repairs.
• When covered by warranty, certified-dealership repairs protect your coverage and often reduce total ownership cost over time.