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 WarningHeated Oxygen and Oxygen Sensor Caution
Caution: Do not remove the pigtail from either the heated oxygen
sensor (HO2S) or the oxygen sensor (O2S). Removing the pigtail or the
connector will affect sensor operation.
Handle the oxygen sensor carefully. Do not drop the HO2S. Keep the in-line
electrical connector and the louvered end fr ...
Front Bumper Impact Bar Replacement
Removal Procedure
Warning: Refer to Approved Equipment for Collision Repair Warning in the
Preface section.
Warning: Refer to Glass and Sheet Metal Handling Warning in the Preface section.
Disable the SIR System. Refer to SIR Disabling and Enabling.
Disconnect the negative battery ...
Pretensioner Handling and Scrapping
Special Tools
EL-38826 SIR Deployment Harness
EL-39401-B SIR Deployment Fixture
For equivalent regional tools, refer to Special Tools.
Warning: When you are carrying an undeployed seat belt pretensioner:
Do not carry the seat belt pretensioner by the wires or connector on the
preten ...