Frequently Asked Questions

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

• Sensor faults and communication errors between the battery management system and vehicle modules are frequent causes in EVs.
• 12‑volt battery issues or low state-of-charge warnings can trigger a fault even when the traction battery is fine.
• Charging system faults, loose connectors, or thermal management warnings are also common triggers.
• Many issues are software-related and can be resolved with a calibration or update by our factory-trained technicians.

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

• It indicates the vehicle’s onboard diagnostics has logged a fault code; severity ranges from advisory to critical.
• Advisory codes may allow limited driving, while serious faults can reduce performance or recommend stopping the vehicle.
• The exact cause requires a scan with Toyota diagnostic tools to read stored codes and freeze-frame data.
• Bringing the vehicle to our dealership ensures accurate diagnosis, proper repairs, and protection of your warranty.

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

• Check the instrument cluster for a message; additional warnings often indicate the affected system.
• Confirm the vehicle’s charging cable and connectors are secure and the 12‑volt battery shows normal status.
• If the light is steady, note driving behavior and proceed to scheduled diagnostic service; if flashing, stop and contact us immediately.
• For covered repairs, have them performed at a certified dealer—warranty work must be done at a certified dealership to remain valid.

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

• Diagnostic fees vary, but Coggin Toyota at the Avenues frequently costs less than many independent shops when you factor in accurate diagnosis and factory tooling.
• Our diagnostic fee covers technician time, full system scans with Toyota tools, and a clear repair recommendation.
• Repairs under warranty must be completed at a certified dealer to preserve coverage; this often yields immediate and long-term savings.
• We provide written estimates up front so you understand repair costs, parts, and labor before any work begins.

How long does a check engine light service take?

• Initial diagnostics typically take 30–90 minutes depending on the complexity and any intermittent faults.
• Simple repairs or software updates can often be completed the same day; more involved powertrain or battery work may require additional time.
• We prioritize accurate diagnosis over rushed fixes so repairs resolve the root cause and prevent repeat visits.
• Scheduling service at Coggin Toyota at the Avenues gives you access to factory parts, trained technicians, and efficient turnaround that often reduces total ownership cost.