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Genuine GM parts have one of these marks:

California Proposition 65 WarningInstrument Panel Compartment Door Dampener Replacement
Instrument Panel Compartment Door Dampener Replacement
Callout
Component Name
Preliminary Procedure
Remove the instrument panel lower compartment. Refer to Instrument Panel
Lower Compartment Replacement.
1 ...
Body Panel Paint Protector Replacement (VGC)
The paint protective film and vehicle surface temperature should be 13?€“32?°C
(55?€“90?°F) for best results.
Automatic car washes should be avoided for at least 24?€‰hours after the
paint protective film application.
Wipe the vehicle surface with isopropyl alcohol or fl ...
Shift Control Housing Replacement
Removal Procedure
Set the parking brake.
Shift the transmission to the Neutral position.
Remove the battery tray. Refer to
Battery Tray Replacement.
Remove the brake master cylinder assembly from the
power brake booster. Refer to Master Cylinder Replacement.
...