Frequently Asked Questions

What is the first thing to check when the check engine light comes on in a 2025 Lexus RZ 300e?

• Check for obvious alerts on the instrument cluster and any secondary warnings (battery, coolant, or traction messages).
• Confirm charging status and plug-in connection; for EVs, a loose charging cable or interrupted charge can create system warnings.
• Inspect for recent fuel, charging, or software updates—changes can trigger diagnostics until systems complete a cycle.
• Bring the vehicle to Nalley Lexus Smyrna so factory-trained technicians can read codes with OEM tools and protect warranty coverage.

What does it mean when the check engine light comes on in a 2025 Lexus RZ 300e?

• It indicates the vehicle’s onboard computer has logged a fault—ranging from minor sensor issues to powertrain or high-voltage components.
• Common EV-related triggers include battery management, inverter, motor, or charging-system warnings, plus traditional sensor alerts.
• Diagnosis with OEM-grade equipment at Nalley Lexus Smyrna ensures accurate identification and preserves warranty eligibility for covered repairs.
• Addressing issues promptly often reduces repair cost and prevents secondary damage that can be far more expensive.

What is the most common reason for check engine light on a 2025 Lexus RZ 300e?

• Common causes include sensor faults (temperature or voltage sensors), software or communication errors, and occasional battery-management warnings.
• Minor sensor replacements are typically inexpensive; ignoring them can lead to larger repairs or system performance loss.
• Nalley Lexus Smyrna’s diagnostics and OEM parts help you save immediately and over time compared with repeated independent repairs.
• Remember: warranty-covered repairs must be completed at a certified dealership to maintain coverage and protect long-term value.

How much does a check engine light diagnostic cost for a 2025 Lexus RZ 300e?

• Typical diagnostic fees range from about $129 to $199 depending on the depth of testing required and any electrical-system checks.
• At Nalley Lexus Smyrna, bundled pricing, factory-trained technicians, and precise OEM diagnostics often lower total repair costs versus repeated independent attempts.
• Immediate savings come from accurate identification; long-term savings come from using OEM parts and correct repairs that prevent recurring issues.
• If a repair is covered under warranty, it must be performed at a certified dealership to ensure the claim remains valid.

How long does a check engine light service take?

• Simple diagnostics and resets can take under an hour; more involved troubleshooting or parts diagnosis typically requires 1–3 hours.
• If specialized testing or component replacement is needed, we provide transparent timelines and estimates before work begins.
• Using Nalley Lexus Smyrna often shortens resolution time thanks to OEM tools, in-house parts, and factory-trained technicians.
• Warranty-covered work must be done at a certified dealership, which helps avoid delays from rework and protects long-term ownership costs.