How to Reset a Check Engine Light

check engine light on

Is your check engine light giving you sleepless nights? Don’t worry; Sheehan Cadillac’s service team is here to help! Our expert technicians have compiled a comprehensive guide to help you reset a check engine light and confidently get your vehicle back on the Boca Raton road. Read on to discover the step-by-step process for how to reset a check engine light and ensure your vehicle’s optimal performance!



Why is the Check Engine Light On?

Before we dive into the reset process, it’s crucial to understand why the check engine light might be illuminated in the first place. Common reasons include:

  • Loose or damaged gas cap
  • Faulty oxygen sensor
  • Malfunctioning catalytic converter
  • Issues with the mass airflow sensor
  • Spark plug or ignition coil problems
  • Damaged or loose wiring
  • Emission control system malfunction

How to Reset a Check Engine Light: Step-by-Step Guide

Follow these simple steps to reset your check engine light:

  1. Check for underlying issues: Diagnosing and fixing any underlying problems before resetting the check engine light is important. Consider scheduling a service appointment with our certified technicians to identify and address the root cause.
  2. Disconnect the battery: If all issues have been resolved and the light has yet to turn off, you can reset the check engine light manually. Locate the vehicle’s battery and disconnect the negative terminal. Wait for approximately 15 minutes to allow the vehicle’s computer system to reset.
  3. Reconnect the battery: After waiting, reconnect the negative terminal to the battery. Ensure it is securely fastened.
  4. Start the engine: Start your vehicle and let it run for a few minutes. This allows the computer system to reestablish connections and assess the status of various components.
  5. Verify the reset: Check if the check engine light is still illuminated. If it remains on, it may indicate a persistent issue that requires professional attention.

Remember, resetting the check engine light does not fix the underlying problem. Diagnosing and addressing any potential issues is crucial to prevent further damage and ensure the longevity of your vehicle as you drive around Fort Lauderdale.

Trust Sheehan Cadillac for Expert Assistance

At Sheehan Cadillac, our team of skilled technicians is here to provide comprehensive diagnostics, repairs, and maintenance services for your Cadillac. Whether it’s resetting the check engine light or any other automotive needs, we have you covered. Schedule a service appointment today in Pompano Beach, near Pompano Beach, and experience exceptional service from a trusted Cadillac dealership!


More from Sheehan Cadillac

  • 2024 Cadillac XT4 Towing Capacity

    The new Cadillac XT4 is an SUV that gives you the power you’re looking for near Boca Raton. Even though it’s a compact model, the 2024 Cadillac XT4 towing capacity is surprisingly robust. How much can a Cadillac XT4 tow? It can get an impressive 3,500 pounds of towing capacity when properly equipped. What can a…

  • 2023 Cadillac Escalade MPG

      The 2023 Cadillac Escalade is a strikingly beautiful force to be reckoned with on Boca Raton roads. The full-size luxury SUV dons an alluring exterior and a huge and cozy interior packed with top-of-the-line infotainment features. But what about the 2023 Cadillac Escalade mpg? Will this luxury tank of a vehicle save you on the…

  • 2024 Cadillac XT5 MPG

      The Cadillac brand is synonymous with luxury, so if you want a luxurious midsize SUV, you can’t go wrong with a new Cadillac XT5. The 2024 Cadillac XT5 is offered with two engine options and a choice of front-wheel drive or all-wheel drive so you’re sure to find the powertrain and drivetrain combination best…

Get Directions

5101 North Federal Highway 5101 North Federal Highway, Pompano Beach, FL, 33064

Contact Us

Main (954) 426-1800 Sales (954) 871-2426 Service (954) 300-3008
5101 North Federal Highway 5101 North Federal Highway
Pompano Beach, FL 33064
Sheehan Cadillac 26.2946, -80.0951.