Frequently Asked Questions

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

• Check the gas cap: a loose or damaged cap is a common, simple cause and can trigger the light.
• Confirm fuel level and visible fluid leaks; low oil or coolant can be clues to deeper issues.
• Look for obvious battery or charging system problems—hybrids have unique high-voltage systems that should be inspected by professionals.
• If you don’t find a simple cause, bring your 2017 Toyota Highlander Hybrid to our service center for a certified scan rather than attempting resets yourself.

How long does a check engine light service take?

• Initial diagnostic scans typically take 30–60 minutes; we perform a full inspection to identify the root cause, not just the code.
• Minor fixes such as tightening a gas cap or replacing a sensor can often be completed the same day.
• More involved repairs—fuel system, catalytic converter, or hybrid-system repairs—may require parts and a day or more.
• Choosing Bill Estes Toyota often delivers immediate and long-term savings: accurate first-time repairs from factory-trained techs reduce repeat visits and protect warranty coverage that requires certified dealership service.

What does it mean when the check engine light comes on in a 2017 Toyota Highlander Hybrid?

• The light signals the vehicle’s onboard diagnostics detected an issue; severity ranges from minor (emissions) to serious (engine misfire).
• Codes can indicate sensor failures, emissions faults, misfires, or hybrid-component alerts—only a proper scan identifies the exact fault.
• Driving with some codes can reduce fuel economy or damage components like the catalytic converter; certified diagnosis helps avoid costly downstream repairs.
• We recommend bringing the vehicle to Bill Estes Toyota so repairs covered under warranty are completed at a certified dealership by factory-trained technicians.

What is the most common reason for check engine light on a 2017 Toyota Highlander Hybrid?

• One of the most frequent causes is a loose or faulty gas cap, which can trigger an emissions-related code.
• Other common causes include oxygen sensor failures, catalytic efficiency codes, and occasional misfires—each has different urgency and cost implications.
• Our dealership diagnosis isolates the true cause quickly; often we cost less than independent shops when you factor in correct repairs, parts, and warranty protection.
• Prompt certified repairs protect long-term value and fuel economy, preventing more expensive damage down the road.

How much does a check engine light diagnostic cost for a 2017 Toyota Highlander Hybrid?

• Diagnostic fees typically start around a reasonable flat rate for the initial scan and inspection; exact pricing depends on the depth of testing required.
• If repairs are needed, our service advisors will provide transparent estimates and explain immediate and long-term savings from proper factory repairs.
• Because warranty-covered repairs must be performed at a certified dealership, using Bill Estes Toyota protects your coverage and often costs less than repeated independent attempts to fix the issue.
• Check our current service specials for discounted diagnostics or bundled repairs at /specials/service.htm.