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 WarningInterior Care
To prevent dirt particle abrasions, regularly clean the vehicle's interior.
Immediately remove any soils. Note that newspapers or dark garments that can
transfer color to home furnishings can also permanently transfer color to the vehicle's
interior.
Use a soft bristle brush to remove ...
Heating and Air Conditioning System Description and Operation
Engine Coolant
Engine coolant is the key element of the heating system. The thermostat
controls engine operating coolant temperature. The thermostat
also creates a restriction for the cooling system that promotes a positive
coolant flow and helps prevent cavitation. Coolant enters the
heater ...
Air Conditioning Compressor and Condenser Hose Replacement (1.6L LXT)
Removal Procedure
Recover the refrigerant. Refer to Refrigerant Rec overy and
Recharging.
Remove front bumper fascia. Refer to Front Bumper Fascia Replacement.
Remove A/C compressor and condenser hose nut (1) from A/C condensor (2).
Remove A/C compressor and ...