Frequently Asked Questions

What does it mean when the check engine light comes on in a 2024 Toyota Grand Highlander Hybrid?

• It signals the vehicle's onboard diagnostics have detected an emissions, engine, or sensor issue. Our technicians at Larry H. Miller Toyota Peoria diagnose the exact code and recommend repairs focused on reliability and long-term value.
• Common causes include a loose gas cap, oxygen sensor, catalytic converter, misfire, or battery/charging system concerns. We explain each code and the repair roadmap so you know priorities and costs upfront.
• Choosing our dealership often costs less than independent shops when you factor in accuracy, manufacturer parts, and warranty protection — immediate savings on the repair and long-term savings through correct fixes and factory calibration.
• Warranty-covered repairs must be done at a certified dealership to keep coverage intact. We also offer service financing so you can get the work done now and pay later.
• Ready to act? Please schedule service or check our service specials before you arrive.

How long does a check engine light service take?

• Diagnostics typically take 30–90 minutes depending on severity and whether test drives or live data capture are needed. Repairs vary — minor fixes can be same-day; complex repairs may need parts ordering.
• At Larry H. Miller Toyota Peoria in Peoria, AZ, our factory-trained techs use OEM tools and parts to minimize repeat visits and deliver faster, permanent solutions.
• We prioritize transparent estimates and show immediate and long-term savings by preventing cascading failures. You can take advantage of our service specials and ask about service financing to spread payments.
• To make it simple, schedule service online and we’ll prepare your vehicle for quick inspection on arrival.

How much does a check engine light diagnostic cost for a 2024 Toyota Grand Highlander Hybrid?

• Diagnostic pricing varies by job scope. At our dealership, diagnostics are competitively priced and often cost less than independent shops when you consider precision, OEM diagnostics, and warranty protections.
• An accurate diagnostic prevents unnecessary repairs and delivers long-term savings by addressing root causes rather than temporary fixes.
• We post current offers under service specials and offer service financing so you can get priority repairs now and pay later.
• Book online to reserve a diagnostic slot: schedule appointment.

What is the most common reason for check engine light on a 2024 Toyota Grand Highlander Hybrid?

• The most frequent triggers are emissions-related sensors (oxygen sensors), loose or faulty gas caps, and misfires related to ignition or fuel systems. Hybrids may also show codes tied to battery charging or regenerative systems.
• Our certified technicians at Larry H. Miller Toyota Peoria evaluate hybrid-specific systems and recommend OEM repairs to preserve efficiency and performance.
• Repairing issues early delivers immediate fuel-economy improvements and long-term savings by preventing catalytic converter or hybrid system damage.
• Use our online schedule service tool to reserve a diagnostic and view applicable service specials.

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

• Check that the gas cap is secure — it’s an easy first step. If the cap was loose, the light may clear after a few drives.
• If the light persists or is flashing, have a certified technician inspect the vehicle immediately. Flashing often means a severe misfire that can damage the catalytic converter.
• Our dealership provides fast diagnostics, OEM parts, warranty protection, and service financing to address urgent repairs without delay.
• To get started, schedule service online or review current offers under service specials.