Frequently Asked Questions

What is the most common reason for check engine light on a 2023 Hyundai NEXO?

• Sensors and emissions-related faults are common: oxygen or other emission sensors can trigger the light even on fuel cell vehicles when ancillary systems report anomalies.
• Accessory or electrical faults—loose connections or battery-related issues—may prompt an alert that needs diagnostic scanning.
• Hydrogen system-related warnings are less common but critical; any related message should be inspected immediately by factory-trained technicians.
• Ignoring codes can escalate to reduced efficiency or costly repairs; prompt dealership diagnosis often saves both time and money.

How long does a check engine light service take?

• Initial diagnostic scan typically takes 30–60 minutes to retrieve codes and run quick tests; certain issues require longer evaluation.
• Minor fixes (software resets, sensor reconnections) can often be completed same-day.
• Complex repairs or parts replacement may require a return visit; we provide clear timelines and loaner options when needed.
• Doing service at our dealership often costs less than independent shops over time because repairs are done right, under warranty where applicable, by factory-trained technicians.

What does it mean when the check engine light comes on in a 2023 Hyundai NEXO?

• It signals that the vehicle detected a system irregularity—ranging from minor sensor faults to important emissions or electrical issues.
• Some alerts are informational; others require immediate attention. The vehicle display often pairs the light with text advising next steps.
• Because the NEXO uses fuel cell technology, specific system warnings should be inspected by certified technicians to protect safety and warranty coverage.
• Bring your vehicle to our dealership so factory-trained staff can diagnose codes correctly and recommend cost-effective repairs backed by certification.

How much does a check engine light diagnostic cost for a 2023 Hyundai NEXO?

• Diagnostic fees vary, but typical dealership scans begin around $90–$150; the exact price depends on time and the depth of testing required.
• If you choose to have the repair performed here, diagnostic fees are often credited toward the repair, producing immediate savings.
• Our dealership often costs less than independent shops overall because we avoid repeat work, use genuine parts, and protect warranty coverage—driving long-term savings.
• Any repairs covered under warranty must be performed at a certified dealership to preserve coverage; our team ensures that warranty work is handled correctly and efficiently.

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

• Check your instrument cluster for additional messages or warnings, and note any changes in performance, sounds, or smells.
• Safely pull over if the vehicle shows severe warnings or if performance is affected; avoid high-speed driving until inspected.
• Record the conditions when the light appeared (start-up, driving, after refueling) and provide that information to technicians for faster diagnosis.
• For warranty protection and the most accurate diagnosis on your 2023 Hyundai NEXO, bring the vehicle to our certified service center—repairs covered under warranty must be completed at a certified dealership.