Draining Procedure

WARNING: This page is about a different car, the 2020 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

Remove the tire and wheel assembly. Tire and Wheel Removal and Installation
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Front Bumper Fascia Center Air Deflector Bolt (1) - Remove [ 5x ]
Front Bumper Fascia Center Air DeflectorRetainer (2) - Remove [ 2x ]
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Front Wheelhouse Liner Bolt (1) - Remove
Engine Front Splash ShieldRetainer (2) - Remove
Engine Front Splash Shield Bolt (3) - Remove
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Front Wheelhouse Liner Bolt (3) - Remove
Engine Front Splash ShieldRetainer (2) - Remove
Engine Front Splash Shield Bolt (1) - Remove
Courtesy of GENERAL MOTORS COMPANY
NOTE:
- Quantity of fasteners may vary based on option content
- Some components not shown for graphic clarity.
Engine Front Splash Shield Retainer (2) - Remove [ 2x ]
Engine Front Splash Shield Bolt (1) - Remove [ 5x ]
Engine Front Splash Shield (3) - Remove
Courtesy of GENERAL MOTORS COMPANY

Clean any dirt from around the front differential carrier oil filler plug (1).
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Front Compartment Air Deflector Bolt (1) - Remove [ 6x ]
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Front Compartment Air Deflector (1) - Remove
Courtesy of GENERAL MOTORS COMPANY

Clean any dirt from around the front differential carrier oil drain plug (1).
Position a drain pan under front differential carrier oil drain plug (1).
Remove the front differential carrier oil drain plug (1) from the front differential carrier and drain the fluid.