Installation Procedure

Fig 1: Identifying Wiper Arm

GM837384

Courtesy of GENERAL MOTORS CORP.

Align the key on the wiper arm pivot shaft with the detent on the wiper arm post (3), and with the locking tab in the open position, slide the wiper arm (2) onto the pivot shaft.
Inspect the wiper arm is fully seated to ensure the locking tab is fully engaged.