We will try again today to help you to resolve the small complications related to your motor vehicle. We have recently seen how to unblock a fuel door, or a tank cap, today we will concentrate on an irritating problem that can be dangerous in bad climate conditions, being a victim of wiper stuck on GMC Sierra . And to correct this, we will first try to discover why the wipers on your GMC Sierra remain stuck and, secondly, how to unblock them.

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Why does the wiper of my GMC Sierra stay stuck?

So we will begin our article with the explanations of the stuck wipers of your GMC Sierra . First of all we will concentrate on the front wipers and in a second time on the rear wiper.

Why are the front wipers on my GMC Sierra stuck in up or down position?

We will go through one at a time the different complications that can cause the front wipers of your GMC Sierra to get stuck :

  • One of the most basic causes of front wipers getting stuck on your GMC Sierra is related to the engine that drives them, in fact, these engines can, with time, lose power, and ultimately need to be changed. You should find out before the total blockage of your windshield wipers that they work much slower.
  • Less basic, but it can still happen, is that your front wiper blades are blocked as a result of an object that prevents the blades from functioning, have a look up to the axis of the blades.
  • If it is a lack of lubrication, you will discover that your front wipers are going slower, check fairly quickly the trigger of the problems or else the engines will be forced and damaged.
  • It is possible that the front wipers of your GMC Sierra may not function as a result of a defective comodo. To evaluate this, you need to disconnect the output wires and connect them together, if the wipers are functioning, the comodo is to blame for the problem.
  • Finally, last possibility, the front wipers of your GMC Sierra are blocked as a result of a power failure, so you will have to check two auto parts, the relay and the fuse.

Why is the rear window wiper on my GMC Sierra stuck?

Concerning the stuck rear window wiper of your GMC Sierra , the origins of your problems are more or less the same. Although there is just one wiper blade at the rear of your motor vehicle, there are still some dedicated auto parts that can cause complications just on the rear windshield of your GMC Sierra. So, remember to conduct the same checks as seen in the previous part of this article.

What can I do to unlock the wiper on my GMC Sierra?

At last, to do this second section, we will see what solutions are available to you to make certain that the wipers on your GMC Sierra are unlocked and that they function properly again.

How to unlock the wipers of my GMC Sierra?

If it is for the front windshield wipers or the rear windshield wiper, the solutions will be the same and we will detail them one after the other in this part, it is up to you to adapt them to the part that concerns you. If you have other blocking complications such as a fuel door stuck on GMC Sierra, do not think twice to seek advice from our article on this problem.

  • In this case, you will have to find the engine, then disconnect the power cables of this one (be careful there must be some of them related to the different speeds of sweeping), then remove the brushes and the linkage. At last, you will have to unscrew these anchoring points which are generally fixed on silentblocks and reassemble a new wiper motor on your GMC Sierra

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  • In this situation, it will be quite basic but expensive to replace your commodo, the part generally costs around 200€, once tested you will have the ability to disassemble your commodo by removing the cover from the back of the steering wheel then disconnecting it and removing it with the fixing screws, you will just have to reassemble the new one.
  • GMC Sierra wiper blocked caused by a power failure: In this last situation, you will have to find the origin of the failure (fuse or relay) and replace the defective part

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Whenever you have any additional questions about the GMC Sierra, do not hesitate to consult our GMC Sierra category.