Removal Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of GENERAL MOTORS COMPANY

NOTE:
Left side shown, right side similar.

Using the appropriate trim tool, remove the left side and right side windshield wiper arm finish caps (1) from the windshield wiper arms (3).
Windshield Wiper Arm Nut- Left Side and Right Side (2) - Remove [2x]
Grasp the outer end of the windshield wiper arms (3) and gently rock the arms back and forth to remove them from the windshield wiper transmission pivot shafts.
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NOTE:
Left side shown, right side similar.

Apply two layers of masking tape around the top edge of the left side and right side service parts to prevent paint damage.
Using a suitable plastic trim tool, carefully release the left side and right side air inlet grille panel extension clips.
Remove the left side and right side air inlet grille panel extensions (1) from the air inlet grille panels and upper front fenders.
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NOTE:
Left side shown, right side similar.

Front Compartment Side Sight Shield Retainer- Left Side and Right Side (1) - Remove [6x]
Front Compartment Side Sight Shield- Left Side and Right Side (2) - Remove [2x]
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NOTE:
Left side shown, right side similar.

Hood Rear Outer Air Inlet Seal Retainer - Left Side and Right Side (1) - Remove [4x]
Hood Rear Outer Air Inlet Seal- Left Side and Right Side (2) - Remove [2x]
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NOTE:
Left side shown, right side similar.

Air Inlet Grille Panel Retainer- Left Side and Right Side (1) - Remove [4x]
Air Inlet Grille Panel Extension- Left Side and Right Side (2) - Remove [2x]
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Air Inlet Grille Panel Retainer (1) - Remove [6x]
Disconnect the windshield washer nozzle hose from the windshield washer pump hose.
Lift the front edge of the air inlet grille panel (2) and slide the panel forward from both hood hinges to remove.
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Windshield Wiper System Module Shield (1) - Remove

NOTE:

To prevent erroneous DTC's, disconnect the battery negative cable before disconnecting the windshield wiper motor electrical connector.

Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection
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Disconnect the windshield wiper motor electrical connector.
Windshield Wiper System Module Bolt (1) - Remove [2x]
Slide the windshield wiper system module (2) inboard to release the grommet from the plenum and remove the windshield wiper system module (2) from the vehicle.
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Air Inlet Deflector Water Deflector Retainer (1) - Remove [2x]
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Air Inlet Deflector Water Deflector (1) - Remove
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Plenum Front Panel Nut (1) - Remove [3x]
Plenum Front Panel Bolt (2) - Remove [3x]
Disconnect the electrical connector.
Pull the forward lamp wiring harness (3) out from the plenum front panel.
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Plenum Front Panel Bolt (1) - Remove [4x]
Plenum Front Panel Nut (2) - Remove [3x]
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Plenum Front Panel (1) - Remove
Courtesy of GENERAL MOTORS COMPANY

NOTE:
This is a push nut.

Plenum Panel Nut (1) - Remove [9x]
Dash Panel Outer Upper Insulator (2) - Remove
Plenum Front Panel (3) - Remove