Frequently Asked Questions

What does it mean when the check engine light comes on in a 2025 Toyota Grand Highlander?

• It indicates your vehicle detected a fault in the emissions, engine, or charging systems; sometimes a weak battery or failing alternator triggers codes that affect performance and electronics.
• At Stevinson Toyota West in CO, our certified technicians use OEM diagnostic tools to identify root causes quickly and accurately, so you get the right battery service or repair the first time.
• Choosing our dealership often costs less than independent shops over time — we reduce repeat repairs, protect vehicle value, and provide immediate and long-term savings through proper diagnosis and OEM parts.
• Repairs covered under warranty must be performed at a certified dealership to remain valid; our team will confirm coverage and recommend options, including battery replacement when needed.
• We offer service financing to help you get the work done now and pay later. To book, please schedule service or review current service specials.

How long does a check engine light service take?

• Most diagnostics for a 2025 Toyota Grand Highlander are completed within an hour when run by our trained technicians; complete repairs or battery replacements may take additional time depending on parts availability and service needed.
• Stevinson Toyota West prioritizes speed and accuracy — we pair experienced techs with OEM parts and clear estimates so you understand time and cost up front.
• Our service advisors will explain immediate fixes that restore drivability and long-term repairs that protect engine health and fuel economy, ensuring you save money over the life of the vehicle.
• To minimize downtime, you can schedule appointment online and view current service specials before arrival.

How much does a check engine light diagnostic cost for a 2025 Toyota Grand Highlander?

• Pricing varies by diagnosis complexity, but our dealership provides transparent estimates and often costs less than independent shops when factoring in accurate diagnosis, OEM parts, and warranty-backed repairs.
• If a battery or charging-system fault is causing the code, our technicians will present a clear replacement quote with parts, labor, and warranty details so you understand immediate savings and long-term value.
• We emphasize honesty and long-term savings: investing in certified service reduces future failures, preserves resale value, and avoids unnecessary parts replacement.
• We also offer service financing to help you manage repair costs — please schedule service to get a precise estimate and ask about current service specials.

What is the most common reason for check engine light on a 2025 Toyota Grand Highlander?

• Common causes include faulty oxygen sensors, loose gas caps, catalytic system issues, or problems in the charging system — a weak battery or alternator can trigger alerts and generate drivability concerns.
• At Stevinson Toyota West, our diagnostic process isolates the true cause so you avoid unnecessary parts swaps; when a battery replacement is recommended, we install genuine Toyota batteries with warranty protection.
• Prompt diagnosis protects fuel economy and prevents more costly repairs. Our dealership’s factory-trained technicians help ensure you get efficient, lasting repairs and tangible savings over time.
• Book online to get a fast estimate: schedule appointment, and check our latest service specials for discounts on diagnostics and battery service.

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

• Start by checking the charging system and battery voltage — many modern vehicles will throw codes when voltage drops or charging is inconsistent; our technicians perform a complete battery load and alternator test.
• We recommend bringing your 2025 Toyota Grand Highlander to Stevinson Toyota West so our certified team can perform a thorough scan, provide an honest estimate, and explain immediate versus long-term repairs.
• Remember: warranty repairs must be completed at a certified dealership to be valid. We provide transparent service plans, OEM parts, and options like service financing to get you back on the road now.
• To get started, schedule service online and review available service specials that may lower your out-of-pocket cost.