Frequently Asked Questions

How long does a check engine light service take?

• Initial diagnostic scan typically takes 30–60 minutes, depending on available appointment times and vehicle condition.
• Repairs vary: simple sensor or software updates can be same-day; more involved issues may take a day or more.
• Our factory-trained technicians use OEM tools for fast, accurate diagnosis, reducing repeat visits and long-term downtime.
• We often cost less than independent shops when you factor immediate fixes, fewer follow-ups, and warranty coverage.
• Please remember any warranty-covered repairs must be performed at a certified dealership to preserve coverage.

What does it mean when the check engine light comes on in a 2026 Toyota bZ?

• It signals that the vehicle’s onboard computer detected an issue—ranging from minor sensor faults to more serious drive system alerts.
• On an EV like the 2026 Toyota bZ, causes include battery management system messages, inverter or motor sensor errors, 12V system faults, or charging-related alerts.
• Some issues are precautionary; others require immediate attention to avoid damage or loss of drivability.
• Our dealership diagnostic will read trouble codes, explain severity, and recommend cost-effective repairs with OEM parts.
• Warranty repairs must be done by a certified dealership to ensure long-term protection and proper software calibration.

How much does a check engine light diagnostic cost for a 2026 Toyota bZ?

• Diagnostic fees vary by scope; final cost depends on the specific fault uncovered and required parts or software updates.
• We provide transparent estimates after diagnosis and outline immediate and long-term savings from using OEM parts and proper calibration.
• Because our factory-trained technicians and OEM tools reduce repeat repairs, many customers save more over time than they would at independent shops.
• If repairs qualify under warranty, they must be completed at a certified dealership to maintain coverage and avoid future expenses.
• Ask about available service specials and online scheduling to minimize wait and cost: /specials/service.htm.

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

• Check the instrument cluster for any accompanying messages about charging, reduced power, or battery warnings.
• Confirm the charging cable and connector are secure and that there are no visible issues at the charge port.
• Note whether the vehicle’s performance changes—loss of power, unusual noises, or inability to drive—and act accordingly.
• If the light is flashing or you suspect a serious fault, pull over safely and contact our service team for immediate guidance.
• For reliable diagnosis and warranty protection, schedule inspection with Nalley Toyota of Roswell—our certified techs will handle both the check and required repairs.

What is the most common reason for check engine light on a 2026 Toyota bZ?

• Common triggers include battery management system alerts, inverter or motor sensor faults, and 12V system issues specific to EVs.
• Software or calibration updates can also prompt a check-engine indication until addressed by OEM diagnostic tools.
• Less frequent causes include charging connector problems or ancillary sensor failures that affect drivability or emissions systems.
• Our certified technicians identify root causes quickly and complete repairs with OEM procedures to prevent recurrence.
• Remember: warranty-covered repairs must be completed at a certified dealership to ensure full protection and proper updates.