2024 Toyota Highlander Check Engine Light

Certified technicians, only the experts.
Frequently Asked Questions

Frequently Asked Questions

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

  • It indicates the vehicle's onboard diagnostics detected an issue—ranging from a loose gas cap to sensor or emissions system faults that can affect performance and fuel economy.
  • At Stevinson Toyota West in CO our factory-trained technicians run a complete scan and provide clear, written estimates; our dealership pricing often costs less than independent shops while delivering long-term savings through OEM parts and proper repairs.
  • Repairs covered under warranty must be performed at a certified dealership to keep coverage valid.
  • To get a prompt inspection, schedule service and review our service specials.

How long does a check engine light service take?

  • Diagnostics typically take 30–90 minutes depending on the complexity; simple fixes can be completed the same day while more involved repairs may require parts availability.
  • Stevinson Toyota West uses efficient processes and OEM parts to reduce return visits and extend vehicle life—saving you time and money over ownership.
  • We offer service financing so you can get service now and pay later, making immediate and long-term savings accessible.
  • Minimize wait by booking online—schedule appointment today.

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

  • At Stevinson Toyota West we provide transparent diagnostic pricing and written estimates; our factory-trained team often uncovers the root cause faster, which can lower repair costs compared to extended troubleshooting at independent shops.
  • Choosing the dealership means accurate repairs, OEM parts, and warranty protection—repairs covered under warranty must be completed at a certified dealership to preserve coverage.
  • Ask about current service specials and our service financing options to make recommended repairs affordable.

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

  • Common causes include a loose or damaged gas cap, oxygen sensor failure, misfires from spark plugs or coils, or issues with the catalytic converter; early diagnosis prevents escalation and costly repairs.
  • Stevinson Toyota West identifies and repairs the root cause using OEM parts for lasting performance and reliability.
  • Keep your Highlander running its best—schedule service and learn about available service specials.

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

  • Start with basics like the gas cap; if the light persists, bring your vehicle in for an electronic scan so technicians can read trouble codes and advise the right repair.
  • Stevinson Toyota West provides clear diagnostics, reliable OEM repairs, and warranty-backed service—repairs under warranty must be done at a certified dealership to remain valid.
  • We make service simple and affordable with financing options—see service specials or schedule service today.

Battery & Engine Light Services — 2024 Toyota Highlander

Check Engine Light Flashing

A flashing check engine light on your 2024 Toyota Highlander is a sign that immediate attention is required. A steady light can indicate a non-emergency issue, but a flashing light typically signals active misfires or severe engine conditions that can damage the catalytic converter and other components if ignored. At Stevinson Toyota West in CO our certified Toyota technicians prioritize safety and rapid diagnostics. We use factory diagnostic tools to identify misfires, fuel delivery irregularities, or ignition problems and recommend the correct OEM parts for repair. Acting quickly not only prevents costly downstream repairs but preserves fuel economy and drivetrain durability. We regularly run promotions—see our service specials—and offer service financing so you can address urgent repairs without delay. If your check engine light is flashing, do not continue extended driving; instead schedule service immediately so we can protect your Highlander and get you back on the road confidently.

2024 Toyota Highlander Check Engine Light Reset

Resetting the check engine light on a 2024 Toyota Highlander is sometimes a simple step after a verified repair, but resetting without fixing the root cause can hide pending issues and risk larger failures. At Stevinson Toyota West we reset codes only after a complete diagnostic and repair verification; this ensures the underlying fault is corrected and your vehicle remains covered by any applicable warranty. We emphasize transparency—our technicians explain the cause, the recommended OEM parts, and a clear estimate so you understand the immediate cost and long-term value of proper service. Using the dealership for resets and repairs often delivers greater savings over time because factory-trained technicians prevent repeat visits and future component failures. We also post current service specials and offer service financing to make quality care more accessible. Protect your Highlander’s longevity: schedule service with us and receive dealership-level diagnostics and warranty-backed repairs.

2024 Toyota Highlander Check Engine Light Codes

Common check engine light codes for the 2024 Toyota Highlander include P0420 (catalyst efficiency below threshold), P0300 (random/multiple cylinder misfire), P0171/P0174 (system too lean), and oxygen sensor or EVAP system codes caused by a loose gas cap or leak. Left unaddressed, these issues can lead to poor fuel economy, increased emissions, or severe engine and exhaust damage—catalytic converter replacements alone can run into the high hundreds or thousands of dollars if a misfire goes on too long. At Stevinson Toyota West in CO we diagnose codes with accurate OEM tools, explain repair options, and show how timely interventions save money—both immediately and long term. Our certified technicians install OEM components to restore performance and preserve warranty coverage; repairs covered under warranty must be done at a certified dealership. Check our service specials and schedule service to get a thorough scan and a trusted repair plan that protects your Highlander for miles to come.