2024 Toyota Grand Highlander Check Engine Light Reset

Resetting a check engine light can seem straightforward, but on a 2024 Toyota Grand Highlander it should be done after a proper diagnostic to avoid masking recurring faults. A reset without repair may silence the light temporarily while an underlying issue — oxygen sensor degradation, catalytic converter strain, or battery/charging anomalies — continues to damage components or reduce fuel efficiency. At Larry H. Miller Toyota Peoria, our certified technicians use OEM scan tools to read permanent and pending codes, confirm repairs with real-world testing, and only then clear codes so you have documented evidence that the issue is resolved. This transparent process protects your warranty and maintains vehicle value. We provide honest estimates, OEM parts, and advice on preventive maintenance, including battery inspections and replacement when needed. If cost is a concern, ask about our current service specials and available service financing to get the work done now and pay later. To expedite service, schedule service online and our team at Larry H. Miller Toyota Peoria will prepare your 2024 Toyota Grand Highlander for a thorough and lasting repair.

2024 Toyota Grand Highlander Check Engine Light Codes

Common check engine codes on a 2024 Toyota Grand Highlander include P0420 (catalytic efficiency), P0300 (random/multiple misfires), P0171/P0174 (lean condition), and charging or battery-related codes that can cause performance faults. Ignoring these codes can lead to reduced fuel economy, higher emissions, premature component failure, and costly repairs down the road — for example, a simple sensor replacement is far less expensive than a failed catalytic converter. In Peoria, AZ, drivers trust Larry H. Miller Toyota Peoria for accurate diagnostics and clear pricing that often results in lower lifetime costs compared with many independent shops, thanks to efficient repairs and OEM parts that last longer. Our service advisors explain each code, the estimated repair cost, and the long-term savings from fixing the root cause. We prioritize convenience: online scheduling, quick turnaround, transparent estimates, and certified technicians who specialize in Toyota vehicles. Learn more about our offers and service specials or schedule appointment today to protect your 2024 Toyota Grand Highlander.

Check Engine Light Flashing

A flashing check engine light on your 2024 Toyota Grand Highlander is a serious warning — it often indicates active misfires that can overheat the catalytic converter and quickly escalate repair costs. Do not continue high-speed or heavy-load driving; instead, bring the vehicle to Larry H. Miller Toyota Peoria immediately so our technicians can perform a prioritized inspection. We test ignition components, fuel delivery, emission sensors, and battery/charging systems, and we give straightforward recommendations that focus on safety, reliability, and long-term savings. Take advantage of our service specials or ask about service financing to ease payment. Our dealership delivers certified technician expertise, OEM replacement parts, and transparent warranty guidance — warranty repairs must be completed at certified dealers to remain valid. For fast attention and to avoid downstream damage, schedule service online now or contact Larry H. Miller Toyota Peoria through our main site at https://www.larrymillertoyota.com.