Frequently Asked Questions

How long does a check engine light service take?

• Initial diagnostic scan typically takes 20–45 minutes depending on symptoms and codes retrieved.
• Simple fixes, such as tightening or replacing a gas cap, can be completed in under an hour.
• Repairs that require parts (oxygen sensor, ignition coil) commonly take a few hours; more complex work may require a day.
• At Nalley Toyota of Roswell we prioritize accurate diagnostics to avoid repeat visits, often saving you time and money versus repeated independent shop attempts.
• Remember: repairs covered under warranty must be performed at a certified dealership to keep coverage valid.

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

• Ensure you are in a safe place and note any unusual noises, smells, or driving behavior (loss of power, misfires, smoke).
• Check that the gas cap is secure—this common issue can trigger the light and is a quick fix.
• Look for accompanying dashboard warnings (battery, oil, temperature) that indicate severity.
• If the light is steady, schedule a diagnostic with our certified technicians; if flashing, stop driving and bring it in immediately.
• Warranty-covered repairs must be completed at a certified dealership to maintain coverage and ensure genuine parts.

What does it mean when the check engine light comes on in a 2015 Toyota Camry Hybrid?

• The light indicates the vehicle’s on-board diagnostics detected a fault in emissions, engine, or powertrain systems.
• Codes range from minor EVAP or sensor issues to more serious misfires that can harm the catalytic converter.
• A steady light usually means a fault needs attention; a flashing light signals a severe problem requiring immediate service.
• Our dealership uses OEM-level scanners that read Toyota-specific codes and live data for accurate repair recommendations.
• Addressing issues promptly at a certified dealership often costs less overall and preserves warranty eligibility when applicable.

How much does a check engine light diagnostic cost for a 2015 Toyota Camry Hybrid?

• Diagnostic fees vary but many dealerships offer a straightforward scan fee; exact pricing depends on inspection depth and any follow-up testing.
• At Nalley Toyota of Roswell, our diagnostics are competitively priced and frequently cost less than independent shops while delivering factory-level troubleshooting.
• Immediate savings come from accurate identification of the root cause, avoiding unnecessary parts or repeat visits; long-term savings come from preventing escalation to costlier repairs.
• If repairs are covered under warranty, they must be performed at a certified dealership to maintain coverage and ensure OEM parts are used.
• We can provide a clear estimate after diagnosis so you can decide with confidence.

What is the most common reason for check engine light on a 2015 Toyota Camry Hybrid?

• Common triggers include a loose or faulty gas cap, faulty oxygen sensors, ignition misfires (spark plugs/coils), and EVAP system leaks.
• Hybrid-specific sensors and battery management alerts can also prompt a warning; these require hybrid-trained technicians for proper diagnosis.
• Many issues start small but can cause mileage loss, emissions failures, and, if ignored, expensive component damage.
• Bringing the vehicle to Nalley Toyota of Roswell ensures accurate diagnosis with Toyota-approved tools and genuine parts.
• Warranty repairs must be completed at a certified dealership to preserve protection and long-term value.