A new warning light on your dashboard? You don’t find out why it doesn’t turn off… It’s typical, an auto is complex and there are many reasons why a light may come on. If your glow plug light comes on while driving your Lexus NX, it may possibly show different things. In this post, we will do everything we can to support you see things more clearly. First, we will see how the preheating light on your Lexus NX works, and then the different motives it lights up when you are driving

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What is the purpose of my Lexus NX glow plug light?

The primary purpose of the engine glow plug light, which is in most cases symbolized by a yellow coil, is to make sure that your glow plugs are working effectively. In fact, it must light up when you switch on your Lexus NX to tell you that they are heating the intake air in your cylinders and must go out after a few moments when the engine is running. This preheat light is therefore not expected to stay or come on while driving with your automobile. Nevertheless, if it comes on while driving, it may suggest different issues, we will try to detail the main ones.

What to do if the glow plug light comes on while driving on my Lexus NX?

A glow light that comes on while driving on your Lexus NX or at any other time other than when the engine is started is designed to notify you to a fault other than your spark plugs, we will check out this now. Whatever the case, plug in your car to the diagnostic tool will allow you to accurately translate the motive for the light up of your glow light.

My Lexus NX glow light comes on and I’m experiencing a loss of power

The first possibility is that you identify that your glow plug light comes on while driving your Lexus NX and that you also knowledge a loss of power. In this instance, different problems can explain its lightning. Here is a list of the main reasons:

  • Trouble of EGR valve, indeed, if you undergo a loss of power, it is possible that your EGR valve is clogged, in this instance, it is expected that your preheat light comes on while driving on Lexus NX because it is one of the issue of which it is supposed to notify you. Have the status of your valve examined
  • Trouble linked to the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can bring about turbo boost and a disturbance in the operation of the turbo.
  • Trouble associated with the injection, either an injector that has seized up or the injection pump that is damaged by filings or other possible foreign bodies that affect its proper performing.
  • Finally, the last trouble that could lead to a glow indicator light on your Lexus NX coupled with a loss of power, is that your fuel filter is too dirty, you should get jerks because of a bad fuel flow in the engine.

My glow plug light comes on or is flashing but no difference on the performance of my Lexus NX

To conclude, we’ll give you the motives for a glow plug light that comes on on your Lexus NX without you feeling any difference in power or automobile behaviour. Ordinarily, this is an electronic fault:

  • Glow plug relays or fuses to be swapped out, test and replace if necessary.
  • A contactor/potentiometer on one of your pedals (brake, accelerator or clutch) has failed, often a simple de-seizure will be enough to get rid of the trouble.
  • You have a false contact somewhere in your electrical circuit, check the other alternatives first because it is not easy to find it alone, we suggest you to go to your repair shop.
  • Faulty injection pressure sensor, ECU error

    • To find more tips on the Lexus NX, take a look at the Lexus NX category.