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 WarningHeadlining Trim Panel Replacement (Without Sunroof)
Warning: Do not attempt to repair or alter the head impact
energy-absorbing material glued to the headliner or to the garnish
trims. If the material is damaged, replace the headliner and/or the garnish
trim. Failure to do so could result in personal injury.
Caution: If a vehicle is equip ...
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 ...
Installation Procedure
Position the lower control arm (1) in the cradle.
Install and hand tighten the NEW rear lower control arm bushing nuts and
bolts (1).
Install and hand tighten the NEW front lower control arm nut and bolt
(1).
Caution: Refer to Fastener Caution in the Preface secti ...