GMC Windshield Wiper Blade
Just like in a passenger vehicle the GMC Windshield Wiper Blades are there to clear the visual path for the driver to see where they are going on the road ahead of them. The windshield wiper blades used on all GMC trucks have both metal and polymer components in them. The metal should last the lifetime of the truck, but with exposure to the elements, the polymer sections will wear out over time.
The elements that damage the windshield wiper blades include the UV rays of the sun. The dry cold temperatures of the winter months also have an adverse effect on the polymer. The importance of this polymer section of the windshield wiper blades is that it is the section that comes in direct contact with the glass windshield on your GMC truck. This is the piece that clears the visual path for the driver to see. Once the polymer sections become hard and brittle they can no longer conform to the curvature of the windshield so they will not effectively clean it. If the polymer sections are not replaced once they are brittle, then they could fall off. This will make it possible for the metal portion of the GMC windshield wiper blades to come in contact with the glass windshield scratching it. This would be an undesirable event to occur that will be very costly in repairs.
To prevent this damage from occurring, the replacement of the windshield wiper blades should occur on a regular basis. The most common time for this to happen is in the spring time. This will help to give the driver of your GMC truck a clear visual path of the road during the many spring showers that annually occur.
The only way to see the road ahead of your vehicle clearly is when the GMC Windshield Wiper Blades are operating correctly. These clearing components on the outside of your vehicle are made to not only be flexible, but also sturdy. This is why the windshield wiper blades are made out of both a polymer and metal sections that are fused together so their task can be completed on your GMC truck.
It is the sweeping motion of the GMC windshield wiper blades that clears the view for the driver to see. The polymer sections of the blades are what makes direct contact with the glass windshield and why neither of these components is damaged upon this contact. As the period of time is extend in the use of the wiper blades on your GMC truck, the polymer sections of them will begin to lose their flexibility. This is when they begin to harden from exposure to the elements like the UV rays of the sun and the dry conditions of the hot summer months. Because of this drying and hardening effect on the polymer, the windshield wiper blades should be part of the routine inspection owner conduct on their vehicle to make sure it is road worthy.
Eventual the polymer sections of the windshield wiper blades will no longer be capable of clearing a visual path for the driver because it has become hard and can no longer conform to the curvature of the windshield on the front of your GMC truck. If the windshield wiper blades are not replaced at that time, the polymer component of the blades can become dislodged from the structural support of the metal compponent of this part. This is when the metal can make direct contact with the glass scratching it.