---
id: faq-0084
title: "What should I do if my check engine light comes on?"
category: faq
subtopic: service-and-maintenance
page_type: faq
source_url: "https://www.castlecdjrchesterton.com"
tags: ["diagnostics", "engine", "warning lights"]
questions:
  - "My check engine light is on-what do I do?"
  - "Is it safe to drive with a check engine light?"
  - "How do you diagnose check engine codes?"
related: [inspection, diagnostics, repairs]
dealer: Castle CDJR of Chesterton
---

A check engine light signals your vehicle's computer has detected an emissions, sensor, or engine issue. It's usually safe to drive, but don't ignore it-the problem can worsen and become expensive.

Castle CDJR of Chesterton uses advanced diagnostic equipment to read the exact fault code and pinpoint the cause. It might be something simple (loose gas cap) or need repair. Either way, we'll explain what's happening in plain terms and give you honest options.

Don't worry-get it checked out soon. Call **(219) 250-9487** to schedule a diagnostic appointment. We'll identify the issue and get you back on the road with confidence.