For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:

Vehicle Care
California Proposition 65 WarningHood Primary and Secondary Latch Replacement
Preliminary Procedure
Remove the front bumper fascia. Refer to Front Bumper Fascia
Replacement.
Remove the radiator grille support reinforcement. Refer to Radiator
Grille Reinforcement Support Replacement.
Hood Primary and Secondary Latch Retainer Bolt (Qty: 2)
Caution: ...
Rear Compartment Lid Emblem/Nameplate Replacement (Bowtie)
Rear Compartment Lid Emblem Assembly
Caution: Refer to Exterior Trim Emblem Removal Caution in the
Preface section.
Procedure
The part and surface should be 21°C (70°F) prior to installation. The
vehicle should remain 21°C (70°F) for
one hour after assembly to allow adhesive to deve ...
Exterior Lighting Systems Description and Operation
Exterior Lamps
The exterior lighting system consists of the following lamps if equipped:
Headlamps
Daytime Running Lamps (DRL)
Front fog lamps
Rear fog lamps
Park, tail and license lamps
Turn signal lamps
Hazard warning lamps
Repeater lamps
Stop lamps
Backup lamps
Low Beam ...