GMC 10283455 Blade Assembly, Windshield Wiper

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To remove wiper blades, press down on blade and release spring for the first type blade, depress the press-type release lever and slide off the wiper arm pin for the second type blade, and insert a screwdriver under spring and push downward on screwdriver to raise spring for the third type blade. To install blades to the arm, insert blade over pin at top of arm and press until spring retainer engages groove in pin.

Intense heat from the sun, snow and ice, road oils and windshield washer solvents can cause rubber wiper refills to deteriorate. It is recommended to replace the refills twice a year or when streaking or chattering occurs. To maintain effectiveness and prolong element life, keep the windshield and wiper blades clean by washing with a glass cleaner and wiping the rubber blades. Avoid moving the wipers by hand to prevent damage. To inspect or replace the wiper blade elements, place the wiper switch in LOW speed and the ignition switch in ACC position. When the blades are vertical, turn the ignition switch OFF. Cracked, broken, or torn elements should be replaced immediately. Replacement intervals vary, but ozone deterioration limits element life to about one year. If the wiper pattern is smeared, streaked, or chattering, replace the elements in pairs. Aftermarket blades may require different types of refills. Anco® refills have a release button, Trico® refills can be removed by pressing down on the metal backing strip, and other Trico® refills have two metal tabs that need to be squeezed together. Polycarbonate refills have a locking device, and Tridon® refills require removing the wiper blade by twisting counterclockwise. Follow the manufacturer's instructions closely and ensure all frame jaws are engaged to avoid scratching the glass during wiper operation.

Removal of the wiper arms requires the use of a special tool, G.M. J-8966 or equivalent, which is generally available in auto parts stores. Insert the tool or a screwdriver under the wiper arm and pry the arm off the shaft, being careful not to scratch the paint. Disconnect the Washer Pump hose from the arm (if so equipped) and remove the arm. To install, position the arm over the shaft and press down, making sure to install the arms in the same position on the windshield as they were when they were removed. Raising the hood on most later models will facilitate easier wiper arm removal.

Ozone deterioration limits the life of wiper blade elements to about one year.

The action of the wiping mechanism can loosen the bolts, nuts, and fasteners.

Wiper blades should be washed regularly with a mild detergent solution.

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 standard equipment of a two-speed wiper motor includes the gear train and self-parking mechanism.

To remove the wiper arm/blade assembly, you need to pull it away from the windshield glass while counteracting the tension of the wiper arm spring.

The three methods used are: 1. Internal spring - press down on the blade, release the spring, and remove the blade from the arm.2. Press-type release lever - depress the release lever and slide off the blade assembly from the wiper arm pin.3. Exterior spring - insert a screwdriver under the spring, push downward on the screwdriver to raise the spring, and remove the blade from the arm.

The rubber element can be replaced by either depressing the press-type button and sliding the old element off, or by pinching the spring-type retainer clip together to slide out the old element.