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 WarningAir Conditioning Compressor Replacement (1.6L LXT)
Preliminary Procedures
Recover the refrigerant. Refer to Refrigerant Rec overy and
Recharging.
Remove drive belt. Refer to Generator and Air Conditioning Compressor
and Power Steering Pump Belt Replacement.
Raise and support the vehicle. Refer to Lifting and Jacking the Vehic ...
Installation Procedure
Prepare all mating surfaces as necessary
Align the body lock pillar outer panel reinforcement.
Drill 8 mm (5/16 in) for plug welding along the edges of the body lock
pillar outer panel reinforcement as noted from the original
panel.
Clean and prepare the attaching surfac ...
Side Blind Zone Alert (SBZA)
The vehicle may have a Side Blind Zone Alert (SBZA) system. Read this entire
section before using the system.
WARNING
SBZA does not detect vehicles rapidly approaching outside of the side blind
zones, pedestrians, bicyclists, or animals. Failure to use proper care when changing
lanes may res ...