Frequently Asked Questions

What does it mean when the check engine light comes on in a 2014 Nissan Altima?

• It indicates the vehicle’s onboard diagnostics detected a fault. Common triggers range from loose gas caps and sensor faults to catalytic converter or ignition issues.
• At Larry H. Miller Nissan Mesa in Mesa, AZ, our factory-trained technicians use OEM diagnostic tools to pinpoint cause quickly, reducing guesswork and long-term repair costs.
• We often provide more economical results than independent shops by combining rapid diagnostics, correct OEM parts and targeted repairs — which saves you money today and prevents costly follow-up visits.
• Warranty-covered repairs must be completed at a certified dealership to remain valid; we perform all eligible repairs under warranty and honor manufacturer coverage.
• Need work done now and pay later? Ask about our service financing options when you schedule service.

How long does a check engine light service take?

• Initial diagnostics typically take 30–60 minutes depending on code complexity; follow-up repairs vary from quick fixes to multi-hour jobs if parts replacement is needed.
• Larry H. Miller Nissan Mesa offers streamlined bays and certified technicians to minimize downtime and get you back on the road faster.
• We provide transparent estimates and explain immediate versus long-term benefits so you can make informed choices.
• Check our current service specials — discounts and bundled offers often reduce out-of-pocket cost.
• To reserve a convenient time, schedule appointment online and select a slot that fits your day.

How much does a check engine light diagnostic cost for a 2014 Nissan Altima?

• Diagnostics pricing varies, but our dealership pricing is competitive and frequently costs less than independent shops while delivering factory-level service and accurate repairs.
• Running a full diagnostic at Larry H. Miller Nissan Mesa includes a thorough scan, technician inspection, and written estimate — immediate and long-term savings come from fixing root causes correctly the first time.
• When repairs are covered by warranty they must be performed at a certified dealership; we handle those claims directly for you.
• We also offer service financing so you can address urgent repairs now and pay over time; ask our service advisors for options when you schedule service.

What is the most common reason for check engine light on a 2014 Nissan Altima?

• Common causes include oxygen sensor failure, loose or faulty gas caps, ignition coil or spark plug problems, and catalytic converter issues.
• Addressing issues early at Larry H. Miller Nissan Mesa protects fuel economy, performance and emissions systems — preventing more expensive repairs later.
• Our certified techs diagnose with OEM-grade tools to identify whether the root cause is a simple, low-cost fix or a component that needs replacement.
• We recommend reviewing available service specials before booking to maximize value and savings.

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

• Start with a quick visual inspection: secure the gas cap, check for obvious leaks, unusual noises or warning lights that accompany the CEL.
• For accurate resolution, bring your 2014 Nissan Altima to Larry H. Miller Nissan Mesa where our diagnostics will identify codes and the appropriate repair path.
• We emphasize transparency — you receive a detailed estimate and explanation of immediate versus preventative repairs, helping you avoid unnecessary work and long-term costs.
• To get a professional assessment and take advantage of certified service, schedule service or view our service specials before you arrive.