Frequently Asked Questions

What does it mean when the check engine light comes on in a 2019 Toyota Highlander Hybrid?

• It signals your vehicle's onboard diagnostics detected an issue. Issues range from simple sensor alerts to conditions that affect emissions, fuel economy, or drivability.
• At Nalley Toyota Union City in Union City, GA, our factory-trained technicians use OEM-grade scanners to pinpoint the cause quickly — often costing less than independent shops while delivering long-term savings through correct repairs and genuine parts.
• If a repair is covered by warranty, it must be completed at a certified dealership to preserve coverage and ensure quality; we handle warranty work efficiently and transparently.
• We offer service financing so you can get necessary repairs now and pay later. To get started, schedule service online today.

How long does a check engine light service take?

• Diagnostics typically take 30–90 minutes depending on code complexity; simple sensor replacements can be same-day, while in-depth repairs may require additional time for parts or testing.
• Nalley Toyota Union City prioritizes quick turnaround with accurate diagnosis—saving you time and avoiding repeat visits that can add cost over the long run.
• While you wait, we offer comfortable customer amenities and transparently communicate labor and parts pricing so you understand immediate costs and future savings.
• To confirm availability and service specials, or to schedule appointment, visit our service scheduler online.

How much does a check engine light diagnostic cost for a 2019 Toyota Highlander Hybrid?

• Diagnostic fees vary, but our dealership often costs less than independent shops because we combine efficient OEM diagnostics with clear repair plans that reduce long-term expenses.
• We provide straightforward pricing, explain immediate versus deferred repairs, and highlight savings from preventing secondary failures that can be far costlier down the road.
• If repairs are covered under warranty, those services must be completed at a certified dealership to maintain coverage — our team will handle that paperwork for you.
• We also offer service financing options so you can address issues now and spread payments over time; schedule service to get an accurate estimate.

What is the most common reason for check engine light on a 2019 Toyota Highlander Hybrid?

• Common causes include oxygen sensor faults, loose fuel caps, EVAP system leaks, misfires, or issues with emission control components.
• For hybrid models, battery-system and inverter notifications can also trigger warnings—our technicians are trained on hybrid systems and use Toyota-approved procedures to diagnose correctly.
• Fixing the root cause at Nalley Toyota Union City helps preserve fuel economy and component life, delivering immediate savings and avoiding more expensive repairs later.
• Check our service specials and schedule service online for faster, warranty-safe repairs.

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

• Start with simple items: ensure the gas cap is secure, check basic fluid levels, and note any drivability issues like rough idle or loss of power.
• Even if an easy fix is suspected, a certified diagnostic with OEM tools is recommended to prevent misdiagnosis and unnecessary part replacements.
• Nalley Toyota Union City's certified techs will provide a clear diagnostic report, discuss costs and warranty implications, and offer service financing if needed.
• When ready, schedule service online and take advantage of our current service specials.