Installation Procedure

WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

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Keyless Entry Control Module (1) - Install
Secure the retaining tabs.
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Body Control Module (1) - Install
Secure the retaining tabs.
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Body Control Module Bracket (2) - Install

CAUTION:

Refer to Fastener Caution .

Body Control Module Bracket Bolt (1) - Install and tighten [3x] - Fastener Specifications
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Instrument Panel Tie Bar (1) - Install
Attach the wiring harness and connect the electrical connectors as necessary.
Remove the support supporting the heater and air conditioning evaporator and blower module.
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Instrument Panel Wiring Harness Ground Nut (2) - Install and tighten [2x] - Fastener Specifications
Connect the instrument panel wiring harness (1) clip and connector.
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NOTE:
Some components not shown for graphic clarity.

Heater and Air Conditioning Evaporator and Blower Module Bolt (1) @Heater and Air Conditioning Evaporator and Blower Module - Install and tighten [5x] - Fastener Specifications
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Instrument Panel Tie Bar Bolt (1) @Plenum Lower Panel - Install and tighten [2x] - Fastener Specifications
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Instrument Panel Tie Bar Bolt (2) @Front Side Door - Install and tighten [2x] - Fastener Specifications
Body Hinge Pillar Outer Panel Hole Plug (1) - Install [2x]
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Instrument Panel Tie Bar Bolt (2) @Front Side Door - Install and tighten [2x] - Fastener Specifications
Body Hinge Pillar Outer Panel Hole Plug (1) - Install [2x]
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Instrument Panel Tie Bar Bolt (1) @Floor Panel Tunnel Panel - Install and tighten [2x] - Fastener Specifications
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Data Link Connector (2) - Install
Data Link Connector Bolt (1) - Install and tighten [2x] - Fastener Specifications
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Instrument Panel Tie Bar Bolt (1) - Install and tighten - Fastener Specifications
Use a suitable tool to push the tab (2) in the up position.
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Heater and Air Conditioning Evaporator and Blower Module Bolt (1) - Install and tighten - Fastener Specifications
Use a suitable tool to push the tab (2) in the up position.
Instrument Panel Tie Bar Bolt (3) - Install and tighten - Fastener Specifications
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Connect the instrument panel wiring harness connectors (2) to the high frequency antenna harness.
Instrument Panel Wiring Harness Retainer (1) - Install [2x]
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Instrument Panel Carrier (1) - Install - Instrument Panel Carrier Replacement (without Front Floor Console)Instrument Panel Carrier Replacement (with Front Floor Console, UV6)Instrument Panel Carrier Replacement (with Front Floor Console)
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{If equipped} Instrument Panel Lower Trim Panel Insulator - Right Side (1) - Install
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{If equipped} Instrument Panel Lower Insulator Retainer (1) - Install [3x]
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Starting at the front of the front side door sill garnish molding (1) engage the 2 retaining clips on the forward vertical wall.
Work your way rearward engaging the front side door sill garnish molding retaining clips.
Front Side Door Sill Garnish Molding- Left Side and Right Side (1) - Install [2x]
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Windshield Wiper System Module Shield (1) - Install
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Air Inlet Grille Panel (2) - Install
Connect the windshield washer nozzle hose to the windshield washer pump hose.
Air Inlet Grille Panel Retainer (1) - Install [8x]
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Hood Rear Outer Air Inlet Seal (2) - Install [2x]
Air Inlet Grille Panel Retainer (1) - Install [2x]
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Air Inlet Grille Panel Extension- Left Side (1) - Install
Remove the double layer of masking tape around the perimeter of the painted surfaces.
Using a 50/50 mixture of isopropyl alcohol and clean drinkable water with a clean towel, remove any left over adhesive residue from the masking tape.
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NOTE:
Some components not shown for graphic clarity.

Air Inlet Grille Panel Extension- Right Side (1) - Install
Remove the double layer of masking tape around the perimeter of the painted surfaces.
Using a 50/50 mixture of isopropyl alcohol and clean drinkable water with a clean towel, remove any left over adhesive residue from the masking tape.
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Radio Antenna (1) - Install
Rotate the antenna clockwise to secure the radio antenna to the antenna base.
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Clean the left and right side windshield wiper transmission pivot shaft splines with a soft wire brush before installing the windshield wiper arm (3).
Position the windshield wiper arms (3) on the windshield wiper transmission pivot shafts.
Windshield Wiper Arm Nut (2) - Install and tighten - Fastener Specifications
Windshield Wiper Arm Finish Cap (1) - Install [2x]
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If required, realign the windshield wipers to their respective alignment circles (1) on the windshield.
Lubricate the windshield with clean washer fluid.
Run the windshield wipers for two complete cycles then turn off the windshield wipers.
Ensure the windshield wipers are in the full park position.