---
id: faq-0082
title: "What should I do if my Hyundai's warning light turns on?"
category: faq
subtopic: service-and-maintenance
page_type: faq
source_url: "https://www.castlehyundaioaklawn.com"
tags: ["warning-lights", "diagnostics", "troubleshooting"]
questions:
  - "What does that dashboard warning light mean?"
  - "My check engine light is on-what now?"
  - "Should I be worried about a warning light?"
related: [service-quality, maintenance-schedule]
dealer: Castle Hyundai Oak Lawn
---

Dashboard warning lights tell you something needs attention-it could be minor (like a loose gas cap) or more serious. Don't ignore them. The best first step is to bring your Hyundai to Castle Hyundai Oak Lawn's Service Department for a diagnostic scan.

Our technicians can read your vehicle's computer codes and tell you exactly what's happening. Many warning lights don't mean an emergency, but getting them checked quickly prevents small problems from becoming big (and expensive) ones.

See a warning light? Call (708) 422-9300 to book a diagnostic appointment. We'll figure out what's going on and get you a clear plan-fast.