toyota master system warning light How to Fix Toyota Master System Warning Light

How to Fix Toyota Master System Warning Light

Toyota master system warning light is one very important light among the rest of the dashboard warning lights. This light come on as an indication that other warning lights are on and needs attention.

The master system light is more like a light for collective warning about the presence of other warning lights. The light is indicated with red light and an exclamation mark inside a triangular shape.

Do not mistake this light with an emergency signal light or a packing light, it is not. Modern Toyota cars are equipped with many warning lights including this master light.

Several reasons can cause the master light to come up some of which includes low coolant, low fuel even low washer fluid. It is of great importance to give attention to this light any time you see it come up.

What to do when the Master warning light comes on

Master warning light is to be treated like every other dashboard warning light. Quick attention is needed to detect and fix whatever the problem causing it could be.

If you are unable to make a determination as to the cause of the Master Warning Light, it would be a good idea to have it diagnosed to check if there is a serious issue present that needs to be addressed immediately.

Taking quick action to diagnose and fix the problem can save you from further expensive repairs. The most basic and most common reasons that could make the master warning light come on includes the following

  • 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.

Generally, most dashboard warning lights are the same except for some few variations in some other make and car models. However, when any of the warning light is been illuminated, it is most like as result of a faulty part that needs repair.

Common Lexus dashboard warning lights to know

Like i have mentioned before, apart from the master light, vehicles are also equipped with other warning lights. Some popular warning lights and symbols you should look out for includes

  • Oil pressure light.
  • Tire pressure warning light.
  • Engine temperature warning.
  • Traction control light.
  • Anti-lock brake warning light.
  • Traction control malfunction.
  • Engine warning (check engine light).
  • Battery alert.
  • Seat belt reminder.
  • Airbag warning light
  • Stability control indicator

This are the most basic and major warning dashboard light present in most vehicles including Lexus and Toyota. For more details about dashboard warning light and there meaning refer to my previous article Toyota dashboard warning lights and symbols.

What is the triangle warning light?

The triangular warning light with an exclamation sign in the middle, represents the master warning light. The master warning light is a light that indicates that multiple warning light have been illuminated on the dashboard.

When that warning light triangle with exclamation point pops up, there’s a simple explanation. The master warning light symbol might be a little different for different ca makes and models.

In some cases, the light come on specifically to warning the driver about fault in the traction or stability system (VSC). This system helps to stabilize the vehicle during cornering if the car turns more or less than desired.

Read Also

What do BMW dashboard symbols mean?

In general, the color of the illuminated symbol will convey how severe the issue is. Red indicates an issue that requires immediate attention. Orange indicates a less urgent issue, such as a vehicle service requirement.

Blue and green give you information on lights and indicators. While red and yellow lights are warning lights, when ever you see them come on, find out the fault and fix it.

Leave a Comment