GMC 19120758 Blade Asm,Windshield Wiper

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The two-speed wiper motor includes a gear train and parks only in low speed. The motor connects to wiper arms via a crank arm and transmission shafts. It also powers the windshield washers. Depending on the vehicle model, wiper arms either park parallel to the windshield, a few inches above, or against a step on the windshield's lower molding.

To remove the wiper arm/blade assembly, pull it away from the windshield glass while counteracting the tension of the wiper arm spring. Then, depress the small tab located below the wiper arm at the blade connector socket and detach the blade from the arm. In some cases, a coil spring blade retainer may be present, in which case you should insert a screwdriver on top of the spring and push downwards to remove the blade. To reinstall, simply reverse the removal process, ensuring that the connector is fully pushed onto the arm and that the small locating 'pip' securely fits into the hole in the connector.

Start by disconnecting the negative battery cable and removing the instrument cluster trim panel. Then, remove the switch from the rear by taking out the 2 mounting screws.

The two methods used are the press-type button method and the spring-type retainer clip method.

The windshield wiper and blade assembly.