Windshield Wiper Arm Replacement

WARNING: This page is about a different car, the 2018 Buick Regal TourX and 2018 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedure Open and support the hood.
1	Windshield Wiper Arm Nut Cap Procedure Use a small flat-bladed tool in order to release the cap from the wiper arm.
2	Windshield Wiper Arm Nut CAUTION: Refer to Fastener Caution . Tighten 38 N.m (28 lb ft)
3	Windshield Wiper Arm Procedure Grasp the outer end of the wiper arm and gently rock the arm back and forth while holding the wiper blade off the windshield. Lift the arm assembly from the wiper motor pivot shaft. Clean the knurls on the wiper motor pivot shaft with a soft wire brush.