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:

California Proposition 65 WarningRemote Keyless Entry (RKE) System Operation
The RKE transmitter may work up to 60 m (195 ft) away from the vehicle.
Other conditions can affect the performance of the transmitter. See
Remote Keyless Entry (RKE) System.
RKE without Remote Start
Shown
The following buttons are on the transmitter:
...
Battery Positive and Negative Cable Replacement
Removal Procedure
Disconnect the negative battery cable. Refer to Battery Negative Cable
Disconnection and Connection.
Remove the fuse block and battery positive cable cover.
Remove the battery tray. Refer to Battery Tray Replacement.
Remove the battery posit ...
Fuel Pump Flow Control Module Replacement
Fuel Pump Flow Control Module Replacement
Callout
Component Name
Preliminary Procedures
Disconnect the battery negative cable. Refer to
Battery Negative Cable Disconnection and Connection.
Remove the right rear compart ...