Frequently Asked Questions

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

• Check for a loose or missing gas cap — it’s a common, simple cause for the light and often fixed quickly.
• Look for obvious signs: low oil, coolant level, or obvious leaks under the vehicle before driving far.
• If the light remains, bring your 2006 Toyota Tundra to Nalley Toyota of Roswell for a professional scan and inspection.
• Repairs covered under warranty must be performed at a certified dealership to protect your coverage and long-term value.

What does it mean when the check engine light comes on in a 2006 Toyota Tundra?

• The light signals that your vehicle’s onboard diagnostics detected a fault — from minor emissions issues to engine misfires.
• Codes can indicate problems with sensors, fuel delivery, ignition, or emissions systems that deserve timely attention.
• Prompt dealership diagnostics prevent small issues from becoming costly repairs; our factory-trained techs save you money now and later.
• Warranty-covered work must be completed at a certified dealer to ensure proper parts, labor, and continued coverage.

What is the most common reason for check engine light on a 2006 Toyota Tundra?

• Common causes include a failing oxygen sensor, loose gas cap, or occasional misfire from spark plug or ignition coil wear.
• EVAP system leaks (small vacuum hoses or purge valves) and MAF sensor issues are frequent triggers as well.
• Nalley Toyota of Roswell diagnoses root causes with OEM equipment so repairs are accurate and cost-effective compared with recurring independent fixes.
• Remember: warranty repairs must be done at a certified dealership to remain valid and protect long-term ownership value.

How much does a check engine light diagnostic cost for a 2006 Toyota Tundra?

• Diagnostic scan fees typically range, but Nalley Toyota of Roswell often provides competitive pricing and promotions — check our Service Specials.
• If repairs are needed, having the work done at our dealership can cost less over time because we use genuine parts and factory procedures that prevent repeat visits.
• Warranty-covered diagnostics and repairs must be done at a certified dealership to preserve coverage and avoid out-of-pocket surprises.
• We’ll provide an upfront estimate so you understand immediate and long-term savings before any work begins.

How long does a check engine light service take?

• Initial diagnostic scans typically take 30–60 minutes depending on symptoms and access to the vehicle.
• Simple fixes (gas cap, sensor swap) can often be completed the same day; more involved repairs may take longer if parts are required.
• At Nalley Toyota of Roswell we schedule efficiently, use OEM parts, and our factory-trained technicians minimize downtime for your 2006 Toyota Tundra.
• Repairs done under warranty must be completed at a certified dealership to ensure correct service and continued coverage.