2024 Toyota Highlander Check Engine Light in Murray, UT

It means your onboard OBD-II system detected a fault and stored a specific trouble code identifying the affected system.

Your 2024 Toyota Highlander monitors engine, emissions, and fuel systems; a loose gas cap, sensor fault, or misfire can all trigger the light. A steady light signals a non-urgent issue, while a flashing light indicates a severe misfire. Our Murray Toyota service team retrieves codes, reviews freeze-frame data, and performs pinpoint tests to confirm the cause before any repair.

• Steady vs. flashing light indicates severity
• OBD-II code narrows the system, not the exact part
• Schedule at our online scheduler

Common causes include EVAP leaks, oxygen (O2) sensor faults, MAF sensor issues, catalytic converter efficiency codes, and engine misfires.

On the 2.4L inline-four 2024 Highlander, small EVAP leaks (often a loose or worn gas cap) and aging sensors are frequent triggers. Misfires left unchecked can overheat and damage the catalytic converter. Our Murray, UT technicians verify the fault with OEM scan data and confirm the root cause with smoke testing, fuel/air checks, and ignition tests.

• Loose/damaged gas cap can set EVAP codes
• O2/MAF sensor faults affect fuel trim and MPG
• Misfires risk catalytic converter damage if ignored

A steady light means drive gently to service; a flashing light means stop driving to avoid catalytic converter damage.

If the light is steady, reduce load and schedule diagnosis soon; many issues are minor if addressed quickly. A flashing light indicates severe misfire that can overheat the converter and increase repair costs. In Murray and the Salt Lake Valley, our Toyota-certified team can inspect your Highlander promptly and provide a written estimate before any repair.

• Steady = service soon; flashing = tow recommended
• Misfires can overheat and melt catalysts
• Book now via schedule service

A free scan reads generic codes; dealer diagnostics use Toyota factory data and tests to identify the root cause.

Code readers report what system set a fault, not which part failed. Our Toyota-specific scan tools access proprietary modules, freeze-frame data, and bi-directional tests that generic readers can’t. In Murray, UT, you’ll receive isolation testing, a documented diagnosis, and a written estimate—often preventing repeat visits and unnecessary parts swapping.

• Factory scan tools and OEM service info
• Pinpoint testing confirms cause before repair
• See service specials and schedule

No—clearing the light resets OBD readiness monitors, and vehicles typically fail Utah emissions until monitors complete.

After codes are cleared, your Highlander must complete drive cycles so the ECU can verify emission systems. Test stations check for both trouble codes and readiness status. Instead of clearing codes, get a proper diagnosis in Murray to address the underlying issue and verify monitors are set before testing.

• Readiness monitors must show “complete”
• Pending faults can return during drive cycle
• Book testing help: schedule service

You can schedule a diagnostic at Larry H. Miller Toyota Murray online at /service/appointment-form.htm.

We’re located at 5650 South State Street, Murray, UT 84107 and serve Salt Lake City, Sandy, West Jordan, South Jordan, Millcreek, Holladay, and Taylorsville. Our Toyota-certified team provides OEM-level testing and a written estimate before any repair so you know exactly what’s needed. Check current offers and book at your convenience.

• Central Murray location with Toyota-certified technicians
• Online booking and documented findings
• See service specials

Your 2024 Toyota Highlander benefits from a methodical diagnostic process that goes beyond a basic code read. First, we perform an initial OBD-II scan and capture freeze-frame data to understand conditions when the fault set. Next, a technician verifies the concern and completes isolation tests tailored to the system involved—EVAP smoke tests, fuel/air metering checks, ignition analysis, or exhaust/catalyst efficiency evaluations. We then document confirmed findings and provide a written estimate before any repair proceeds. If your Highlander needs additional testing, we explain why and obtain approval. Access to Toyota factory tools and service information helps prevent parts swapping and repeat visits. Have questions or need a convenient time? View our service specials and schedule service online.

Larry H. Miller Toyota Murray has served Northern Utah drivers since 1979, supporting customers across the Salt Lake Valley, including Murray, Salt Lake City, Sandy, West Jordan, South Jordan, Millcreek, Holladay, and Taylorsville. For your 2024 Toyota Highlander, we pair Toyota factory scan tools with bi-directional testing to see live data, run system checks, and confirm root causes—capabilities generic code readers don’t offer. Whether the light stems from an EVAP leak, an O2 sensor fault, or a misfire, our team documents precise findings and outlines next steps with a clear estimate. You’ll receive results you can act on, not guesses. Find us at 5650 South State Street, Murray, UT 84107. Ready to plan your visit? Schedule service or review service specials before you come in.

While codes vary by condition, many 2024 Toyota Highlander models show familiar patterns. EVAP system leaks (small or large) often relate to loose or worn gas caps or vent/purge issues; ignoring them can lead to repeated test failures and time lost at emissions. Oxygen sensor and fuel-trim codes can reduce MPG and, if unresolved, cause rich/lean operation that shortens catalytic converter life. Misfire codes, when ignored, may overheat the converter and escalate a minor tune-related fix into a major exhaust repair. Mass air flow and intake air issues can trigger drivability concerns and illuminate the light repeatedly if left unchecked. Bring your 2024 Toyota Highlander to Larry H. Miller Toyota Murray in Murray for an accurate diagnosis — schedule service.