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 WarningSide 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 ...
Symbols
The vehicle has components and labels that use symbols instead of text. Symbols
are shown along with the text describing the operation or information relating to
a specific component, control, message, gauge, or indicator.
: This symbol is shown when you need
to see your owner manual for addi ...
Safety Belt Extender
If the vehicle's safety belt will fasten around you, you should use it.
But if a safety belt is not long enough, your dealer will order you an extender.
When you go in to order it, take the heaviest coat you will wear, so the extender
will be long enough for you. To help avoid personal inju ...