Cadillac 22155381 Blade, Windshield Wiper

The wiper blade and windshield should be inspected periodically for damage, loose components, cracked or worn blade elements. To maintain their efficiency, the wiper blades should be washed regularly using a mild detergent solution as road film can accumulate on them. During the same time when checking the wiper blades, check and also tighten bolts, nuts and fasteners as this can be loosened by the wiping action. The inserts are often called wiper blade elements in case of crackings, wearing out or warping; it is necessary to install them with new ones. Remove the wiper blade assembly from the wiper arm by inserting a small screwdriver into the opening and gently prying on the spring while pulling on the blade to release it. While removing its rubber element from the blade, you take off the blade itself from your car. Grasp pliers around this element's metal backing then slide this element out of a blade assembly. Check its length design etc against the old one. Slide in place new one automatically locking at proper location within few minutes of installation. Finally reinstalling of the entire blade assembly onto an arm and wetting windshield glass is done while testing for correct operation.

Operate the wiper motor at least once to ensure correct positioning. Then, recheck using the highest wiper speed on a wet windshield to confirm that the arms and blades do not contact the windshield trim.

To install, put the wiper arm back onto the transmission shaft and push the retaining latch in, then return the arm to the windshield.

For 1990 vehicles, pull the retaining latch and remove the arm from the transmission shaft.

It is important to keep the windshield and blades clean to maintain their effectiveness and extend their lifespan. Dirt, tree sap, road tar, and other contaminants can lead to streaking, smearing, and blade deterioration.

The windshield wiper motor also serves as the drive system for the windshield washers.

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

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.

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.