Installation Procedure

NOTE: Refer to FASTENER NOTICE in GM VEHICLES CAUTIONS & NOTICES article.

Install the wiper motor onto the vehicle with two screws while keeping the shaft centered in the tailgate hole.
Tighten

Tighten two screws to 6.5 N.m (57 lb in).

Fig 1: Locating Rear Wiper Motor Components
Courtesy of GENERAL MOTORS CORP.
Connect the electrical connector to the controller.
Install the interior trim panel. Refer to the TRIM PANEL REPLACEMENT - END GATE or TRIM PANEL REPLACEMENT - LIFT GATE in BODY REAR END article.
Install the spacer and the nut onto the vehicle.
Tighten

Tighten the nut to 8 N.m (70 lb in).

Fig 2: Locating Wiper Arm Shaft Nut & Spacer
Courtesy of GENERAL MOTORS CORP.
Install the wiper arm to the vehicle. Refer to WIPER ARM REPLACEMENT .