Installation Procedure

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

Front Side Door Latch (3) - Install
Front Side Door Inside Handle Cable (4) - Install - Front Side Door Inside Handle Cable Replacement
Front Side Door Lock Cylinder Rod (2) - Install - Front Side Door Lock Cylinder Rod Replacement
Front Side Door Outside Handle Cable (1) - Install - Front Side Door Outside Handle Cable Replacement
Courtesy of GENERAL MOTORS COMPANY

CAUTION:
Fastener Caution

{if equipped} Install the front side door latch cover (2).
{if equipped} Install the front side door latch cover bolt (1) and tighten 2.5 N.m (22 lb in)
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Install the front side door latch with front side door outside handle bracket (1) to the front side door.
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Front Side Door Latch Bolt (2, 3) - Install and tighten [3x] 9 N.m (80 lb in)
{if equipped} Install the front side door latch cover bolt (1) and tighten 2.5 N.m (22 lb in)
Connect the electrical connector. (4)
Courtesy of GENERAL MOTORS COMPANY

Front Side Door Locking Rod Knob (1) - Install - Front Side Door Locking Rod Knob Replacement
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Front Side Door Outside Handle Bracket Screw (1) - Install and tighten 4.7 N.m (42 lb in)
Front Side Door Outside Handle - Install - Front Side Door Outside Handle Replacement (Without Keyless Entry) Front Side Door Outside Handle Replacement (With Keyless Entry)
Front Side Door Window Regulator - Install - Front Side Door Window Regulator Replacement