Frequently Asked Questions

What is the most common reason for check engine light on a 2024 Acura MDX?

• Loose or faulty gas cap causing an evaporative emissions (EVAP) leak — an easy fix that often resolves the light quickly.
• Oxygen sensor or catalytic converter issues, which affect emissions and fuel economy if left unaddressed.
• Ignition misfires from worn spark plugs, coils, or fuel system problems — common as mileage increases.
• Sensors and wiring faults; modern vehicles rely on many sensors that trigger the light if values fall outside expected ranges.
• Bring the vehicle to Nalley Acura for a precise diagnostic; our factory-trained technicians identify the root cause and can help minimize long-term repair costs.

What does it mean when the check engine light comes on in a 2024 Acura MDX?

• The light signals that the vehicle’s onboard diagnostics detected a system fault — anything from emissions control to engine misfire.
• It can indicate minor issues (like a loose fuel cap) or more serious problems (misfires, catalytic converter degradation).
• A steady light usually means a non-immediate issue, while a flashing light signals an urgent problem requiring immediate attention.
• Diagnostics at Nalley Acura use factory-level scanners and OEM procedures to accurately read codes and recommend the right repair path.
• Warranty-covered repairs must be performed at a certified dealership to preserve coverage and ensure genuine parts and proper calibration.

How much does a check engine light diagnostic cost for a 2024 Acura MDX?

• Diagnostic fees commonly range from approximately $99 to $199 depending on tests required; additional repair costs vary by the underlying issue.
• Nalley Acura often costs less than independent shops when you factor in accurate diagnosis, genuine parts, and factory-trained labor.
• Choosing the dealership delivers immediate savings by avoiding repeat repairs and long-term savings by preventing escalation of issues like catalytic converter damage.
• If a repair is covered by warranty, the work must be completed at a certified dealership to maintain coverage and use OEM parts.
• We provide transparent estimates and can often perform same-day diagnostics and repairs to get you back on the road.

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

• Check the fuel cap: ensure it is tightened properly; a loose cap is a common and simple cause of the light.
• Look for obvious signs: low oil, coolant leaks, or visible wiring/connectors that appear damaged.
• If the light is steady and the vehicle runs normally, schedule a diagnostic at Nalley Acura to read codes and avoid escalation.
• If the light is flashing or the vehicle is running poorly, stop driving and have the vehicle inspected immediately to prevent further damage.
• Remember: warranty repairs must be performed at a certified dealership to preserve coverage and ensure genuine parts and proper recalibration.

How long does a check engine light service take?

• Initial diagnostic scans and a basic inspection typically take 30–90 minutes, depending on symptoms and access to the vehicle.
• Minor fixes like tightening a gas cap or replacing a sensor can often be completed the same day.
• More involved repairs (ignition coils, catalytic converter, or major engine work) require additional time for parts and labor — we provide realistic timelines up front.
• Nalley Acura’s factory-trained technicians and parts availability help reduce downtime, delivering immediate savings versus repeat or incomplete repairs.
• If repairs are covered under warranty, service must be completed at a certified dealership to keep coverage valid and ensure OEM parts are used.