---
id: faq-0070
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", "warning lights", "troubleshooting"]
questions:
  - "What does the check engine light mean?"
  - "Is it safe to drive with a check engine light?"
  - "How do I fix a check engine light?"
related: [diagnostics, engine-health, warning-systems]
dealer: Castle CDJR of Chesterton
---

A check engine light signals that your vehicle's onboard diagnostic system detected an issue-anything from a loose gas cap to a sensor problem or emissions concern. While you can often drive safely to a service facility, don't ignore it; the issue may worsen and affect performance or fuel economy.

The best approach is to schedule a diagnostic scan as soon as possible. Our technicians use computer diagnostics to read the error code and pinpoint the exact problem, so we fix what's actually wrong, not just guess.

Castle CDJR of Chesterton's Service team offers professional diagnostics for all Jeep, RAM, Dodge, and Chrysler models. Call (219) 250-9487 right away and we'll get you in for a scan and repair.