Frequently Asked Questions

What is the most common reason for check engine light on a 2025 Nissan Armada?

• Common causes include a loose or damaged gas cap, oxygen (O2) sensor failure, ignition misfires, and EVAP system leaks.
• Many issues begin small (a loose cap or faulty sensor) but can escalate if ignored, increasing repair cost and risking emissions failures.
• Our factory-trained technicians diagnose the root cause with OEM-grade scanners to avoid unnecessary repairs and preserve long-term value.
• For warranty-covered issues, repairs must be performed at a certified dealership to maintain coverage; we handle those repairs efficiently.

What does it mean when the check engine light comes on in a 2025 Nissan Armada?

• A steady light signals a stored fault in engine or emissions systems; it should be diagnosed soon to prevent further damage.
• A flashing light indicates a severe condition such as a misfire that can damage the catalytic converter and requires immediate attention.
• Diagnostics identify trouble codes that point technicians to the subsystem needing repair; self-resetting the light can mask a recurring problem.
• Crown Nissan of Greenville uses factory tools and genuine parts to ensure accurate diagnosis, proper repairs, and warranty-safe service.

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

• Start with the simplest items: ensure the gas cap is tight and undamaged—this is a frequent and inexpensive fix.
• Check for obvious signs: unusual noises, loss of power, visible leaks, or dashboard messages that indicate urgency.
• If the light remains, bring the vehicle in for a code read so our technicians can determine whether it’s an immediate safety issue or a maintenance item.
• Scheduling service with our dealership ensures warranty compliance and often lower total cost over time through accurate diagnosis and genuine parts.

How much does a check engine light diagnostic cost for a 2025 Nissan Armada?

• Diagnostic fees commonly range from a modest scan charge up to a more comprehensive diagnostic depending on complexity; we provide clear estimates before work begins.
• Crown Nissan of Greenville often costs less than independent shops for the same service while delivering factory-trained technicians and OEM tools.
• Upfront diagnostics prevent unnecessary repairs and deliver immediate and long-term savings by addressing root causes quickly and correctly.
• Any warranty-covered repairs must be done at a certified dealership to retain coverage; use our Service Scheduler to book an appointment.

How long does a check engine light service take?

• Time varies by diagnosis: a simple scan and fix (like a gas cap or sensor replacement) can take under an hour, while complex repairs may require several hours or a day.
• If parts are needed, we’ll provide a timeline and work to source OEM components quickly to minimize your downtime.
• Our technicians use targeted diagnostics to speed repairs and avoid repeat visits, saving you both time and money over the long term.
• Book service online or call us—our team will give an estimated completion time based on the initial scan and inspection.