Frequently Asked Questions

What does it mean when the check engine light comes on in a 2021 Toyota Highlander?

• It signals your vehicle’s onboard diagnostics detected an issue—anything from a loose gas cap to an emissions, ignition, or sensor fault. At Larry H. Miller Toyota Murray in Murray, UT, our certified technicians use OEM diagnostic tools to identify the cause quickly.
• Choosing our service often costs less than independent shops while delivering factory-trained expertise, genuine parts, and clear, honest estimates—delivering immediate and long-term savings through accurate repairs and extended vehicle life.
• Many warranty repairs must be completed at a certified dealership to remain valid; we honor warranties and explain coverage and options before any work begins.
• We offer service financing so you can get necessary repairs now and pay later; to arrange repairs, please schedule service online or check our service specials for current savings.

How long does a check engine light service take?

• Diagnostic time typically ranges from 30 minutes to an hour depending on the issue; more complex repairs can take longer. At Larry H. Miller Toyota Murray we aim for fast, accurate turnarounds and keep you informed at every step.
• Because we use OEM parts and factory procedures, many repairs are completed more quickly and reliably than repeat attempts at non-certified shops—saving time and money over the life of your vehicle.
• We provide transparent estimates and will notify you if additional work is required. You can schedule appointment online and review available service specials before you arrive.
• Remember, service financing is available to help manage unexpected costs without delaying needed repairs that protect your vehicle’s performance.

How much does a check engine light diagnostic cost for a 2021 Toyota Highlander?

• Diagnoses vary by issue, but our dealership frequently offers competitive pricing that can cost less than independent shops while including OEM-grade tools and factory-trained technicians for a more reliable result.
• Choosing Larry H. Miller Toyota Murray delivers immediate savings by preventing unnecessary replacements and long-term savings through correct repairs that extend vehicle life and protect resale value.
• We’ll provide a clear estimate before any repair, honor warranty requirements, and discuss financing options to get you back on the road without delay. To get an appointment, schedule service or view current service specials.

What is the most common reason for check engine light on a 2021 Toyota Highlander?

• Common causes include a loose or faulty gas cap, oxygen sensor issues, catalytic converter wear, or ignition problems. Our certified technicians at Larry H. Miller Toyota Murray accurately identify and address these issues with OEM parts.
• Fixing problems early reduces catalytic damage, preserves fuel economy, and prevents larger repair bills—offering both immediate and ongoing savings compared with deferred repairs.
• We document findings, explain warranty impacts, and can help you apply service financing if needed. Book a time to inspect the vehicle by choosing schedule service or review our service specials.

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

• First, ensure the gas cap is tightened. If the light stays on, bring your 2021 Toyota Highlander to Larry H. Miller Toyota Murray for a professional scan—our technicians use factory diagnostic tools to avoid guesswork.
• We emphasize transparency and will provide a straightforward estimate for any necessary repairs. Most warranty-covered repairs must be performed at a certified dealership to maintain coverage.
• For convenience, schedule appointment online and check current service specials. Service financing is available to get repairs started immediately while managing costs.