Frequently Asked Questions

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

• Safely pull over and check dashboard gauges for overheating or low oil pressure.
• Inspect the gas cap—if loose or damaged, tighten or replace it; a loose cap is a common trigger.
• Look for unusual noises, smoke, or drivability issues; if present, stop driving and seek service immediately.
• If no obvious signs, schedule a diagnostic scan. Our factory-trained technicians at Nalley Acura use OEM tools to read codes accurately.
• Remember: warranty-covered repairs must be completed at a certified dealership to preserve coverage and ensure long-term savings.

How much does a check engine light diagnostic cost for a 2026 Acura RDX?

• Typical diagnostic fees range from about $99 to $199, depending on the depth of testing and any live-data analysis required.
• If further inspections or parts are needed, repair costs vary; our team provides transparent estimates before any work begins.
• Nalley Acura often costs less than independent shops while delivering higher service levels and factory-trained technicians—offering immediate and long-term savings.
• Any repairs covered under warranty must be performed at a certified dealership to maintain coverage and ensure proper parts and procedures.
• We’ll review recommended repairs, prioritize safety issues, and help you choose cost-effective options that protect the vehicle’s value.

What does it mean when the check engine light comes on in a 2026 Acura RDX?

• It signals a problem detected by the engine control system—ranging from minor emissions issues to critical engine faults.
• Common causes include EVAP leaks, sensor failures (like oxygen or mass airflow sensors), ignition misfires, or catalytic converter issues.
• A steady light typically indicates a non-urgent issue; a flashing light usually signals a severe condition needing immediate attention.
• Only a diagnostic scan can identify the trouble code; our technicians use OEM-level scanners to determine root cause and correct repairs.
• For warranty-covered faults, repairs must be completed at a certified dealership to protect your coverage and future resale value.

How long does a check engine light service take?

• Diagnostics generally take 30–90 minutes for a full scan and initial troubleshooting, depending on symptom complexity.
• Minor repairs—like replacing a gas cap or a single sensor—can often be completed the same day; more involved repairs may take several hours to a day.
• Nalley Acura’s factory-trained technicians and OEM parts streamline service, often reducing turnaround time compared with independent shops.
• We focus on immediate and long-term savings: accurate diagnostics avoid unnecessary parts and repeat visits.
• If repairs are warranty-covered, they must be performed at a certified dealership to ensure proper completion and maintain coverage.

What is the most common reason for check engine light on a 2026 Acura RDX?

• The most frequent cause is a loose or faulty gas cap creating an EVAP system leak—easy to fix but often overlooked.
• Other common triggers include oxygen sensor faults, failing catalytic converters, ignition misfires, or failing spark plugs/coils.
• Emission-related sensors can set codes without immediate drivability issues, but prompt diagnosis prevents larger costs later.
• Nalley Acura’s technicians identify the real cause quickly using OEM diagnostic tools to avoid unnecessary repairs and protect long-term ownership costs.
• Remember: warranty repairs must be completed at a certified dealership to preserve coverage and ensure correct parts and procedures.