Replacing a Chrysler Pacifica's wiper arm may be an infrequent repair, but bent arms will need to be removed as they will keep the wipers from working properly. The arm connects the blade to the motor, and a damaged arm will not properly move the wiper across the windshield. Also, you may have to remove the arm while performing maintenance on the other parts of the system, such as the wiper motor or transmission. The process of removal is relatively easy and can be done in a few minutes.
Turn on the Pacifica's electrical system and activate the wipers. After five or six seconds turn the vehicle off. This will leave the blades "parked" in the middle of the windshield for easy access.
Lift the arm vertically off of the Pacifica's windshield. Find the release tab on the blade and unlock it. This will detach the blade assembly and allow you to remove it. While there are different types of wiper arm-to-blade assembly connections, most feature some type of security mechanism that needs to be undone. The exceptions to this are small pin wiper arms that connect to a hole on the side of the blade's center connector.
Remove the blade by pulling it off of the arm. Either discard the blade or save it for later use. Small pin wipers can be pried off the arm with a flat head screwdriver.
Pull off the covering at the base of the arm to expose the nut.
Hold the wiper arm with one hand and remove the nut with a socket wrench. Set the nut aside if you need to attach a new arm.
Grab the base of the wiper arm with one hand and ease it off the pivot by carefully rocking it back and forth.
