Whether you experience you can’t see as well at night, or you experience you’re lighting too low, or too high, in all these scenarios, there’s only one component of your vehicle at fault – your headlights, as well known as high beams. Nevertheless this adjustment may seem easy thanks to the thumbwheel on your dashboard, a whole adjustment is much more technical than this simple manipulation, and in this post, we are going to see how to adjust the headlights of your GMC Yukon XL? To do this, first we will see why you need to adjust your high beams, and secondly how to adjust the headlights of your GMC Yukon XL.
Why adjust the headlights of your GMC Yukon XL?
So let’s start our article with the benefit of adjusting the headlights of your GMC Yukon XL. For most of us, our headlights are adjusted well enough, and they appear to light up enough at night. Sadly this is not always the case and checking this setting, either because the headlights on your GMC Yukon XL are not bright enough, or because you have the impression that they are too weak is a great idea .
Adjusting the high beams of your GMC Yukon XL for safety
To begin with, the headlight adjustment of a GMC Yukon XL must be conducted for a simple security reason. Whether it’s for you, or for the other users you come across during your night trips. In truth, if you don’t see enough, the risk is to miss out an obstacle on your way, or to predict a curve badly. However, if your headlights are too powerful, regardless if you are expected to switch to low beam lights when you pass a vehicle, the time needed to make this change will most of the time expose the driver in front of you to the headlight beam of your GMC Yukon XL . It is therefore necessary for others as well as for you to have an ideal adjustment of your headlights.
Adjusting the headlights of a GMC Yukon XL for legal reasons
In addition to security, there is a law that regulates the power, the adjustment of car headlights (articles R313-2 of the Highway Code), here is what it specifies: have between 2 and 4 headlights that illuminate at minimum 100 meters. Another legislation regulates their use, the European one (directive 76/756/EEC), which stipulates that there is no maximum height for the adjustment of the headlights, but that the maximum width of the beam must be matching to that of the dipped headlights and that the maximum luminosity must be 225, 000 cd.
How to adjust the headlights of a GMC Yukon XL?
We will now go forward to the section that concerns you the most in this post, how to adjust the headlights of his GMC Yukon XL? This adjustment may seem a bit difficult, but by simply following the guidance you should be able to perform it without too much concern.
Preparations to adjust the headlights of a GMC Yukon XL
To begin with, you’ll need to prepare your vehicle to adjust your high beams in good conditions, here are the preparations to executed:
- Place your vehicle on a surface in front of a white wall for example, about 4 or 5 meters from the wall.
- Verify your tire pressure attentively.
- Verify that the height adjustment knob for the lights is set to 0
- Try doing that with half a full tank.
- Take out all needless weight from the car, only one person should be in the driver’s seat.
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The headlight adjustment of his GMC Yukon XL
Once your car is in place, you will turn on your dipped beam and make a cross-shaped mark (one horizontal and one vertical section) in the middle of the beam that will be projected on the wall. Verify with a level that both parts of the cross are horizontal. Then back your vehicle up to a distance of between 7 and 10 metres. For the rest of the process here are the steps to stick to:
- Open your hood, identify the screws for horizontal and vertical modification of the headlights of your GMC Yukon XL (they are in most cases marked, and those on top must adjust the verticality and the one on the side manages the horizontality of the adjustment).
- Use a cloth or different things to hide the projector on which you are not making the correction.
- Using the screws to make the horizontal correction, you should have the most intense component of the beam which should be a little to the right of the vertical line marked on the wall
- With regard to vertical correction, you will have to use the screw to try to position the upper end of the beam at the level of the horizontal marking on the wall, or slightly down below.
- Once finished, verify that the headlights setting of your GMC Yukon XL is logical, do not hesitate to verify it after you have driven it, sometimes it may move.
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If you want to adjust the fog lights on your GMC Yukon XL, please browse our article on this subject matter.
In the event that you have any further questions about the GMC Yukon XL, do not hesitate to consult our GMC Yukon XL category.
