Removal Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.

Drain the engine oil.
Front Compartment Air Deflector - Remove - Front Compartment Air Deflector Replacement (AWD) , or Front Compartment Air Deflector Replacement (RWD)
Fig 1: Identifying Lower Oil Pan Bolts With Loosening Sequence And Tightening Sequence
Courtesy of GENERAL MOTORS COMPANY

Lower Oil Pan Bolt (1) - Remove [18x]
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Install the 2 lower oil pan bolts (1, 2) to the jack screw holes to aid in removal of the lower oil pan.
Courtesy of GENERAL MOTORS COMPANY

NOTE:
Ensure that the pins (3, 4) from the lower oil pan do not get damaged while loosening.

Loosen the lower oil pan (2) using a suitable flat bladed tool (1).
Courtesy of GENERAL MOTORS COMPANY

Remove the 2 lower oil pan bolts (1, 2).
Courtesy of GENERAL MOTORS COMPANY

Lower Oil Pan (1) - Remove