A master warning light normally shows up together with another warning light and means that there is an issue with your car. It is important to check your vehicle before operating it, to try and determine the cause of the Master Warning Light.
What Does the Master Warning Light Mean?
The Master Warning Light is usually accompanied by another warning light, and indicates that one or more warning systems have been detected. The Master Warning Light ranges in its levels of significance and severity. When you see the master warning light turn on, it’s important to take action right away and find out what is causing it. Ignoring the warning light could result in further damage to your car or even put you in danger if the issue is something like a tire pressure sensor malfunction. If you’re not comfortable diagnosing the problem yourself, take it to a mechanic or dealership and have them check it out.
Causes of master warning light,
The following are some potential reasons for why the Master Warning Light may be on in the dashboard:
- Low tire pressure
- Low fuel
- Low washer fluid
- Low coolant
- Low battery voltage
- A door is ajar
- The parking brake is still engaged
- Headlights have been left on
- The fuel cap is loose or missing
How to fix master warning light?
First you need to scan for OBD2 Trouble Code (DTC) using OBD2 scanner. Then you can take your code to the internet to find the cause of your fault and how to fix it. Once you know what the problem is and how to fix, you can purchase the necessary replacement parts and install them. Once everything is fixed, it’s time to erase the codes. Plug your scanner back in and erase the trouble code. You might need to confirm the changes. We recommend rescanning the engine to be sure they are gone. You will also see the master warning light goes off.
If you can’t find the information you need online — or you don’t feel comfortable attempting repairs yourself—and the warning light on the car is still illuminated. We recommend getting to the service station to find out what the problem is or consider calling your local dealership for help.
The content contained in this article is for entertainment and informational purposes only and should not be used in lieu of seeking professional advice from a certified technician or expert mechanic. We encourage you to consult with a certified technician or mechanic if you have specific questions or concerns relating to any of the topics covered herein. Under no circumstances will we be liable for any loss or damage caused by your reliance on any content.