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 WarningBrake System Warning Light
The vehicle brake system consists of two hydraulic circuits. If one circuit is
not working, the remaining circuit can still work to stop the vehicle. For normal
braking performance, both circuits need to be working
If the warning light comes on, there is a brake problem. Have the brake system
...
Customer Assistance Office
Chevrolet encourages customers to call the toll-free number for assistance. However,
if a customer wishes to write or e-mail Chevrolet, the letter should be addressed
to:
United States and Puerto Rico
Chevrolet Motor Division
Chevrolet Customer Assistance Center
P.O. Box 33170
Detroit, MI 4 ...
Radiator Surge Tank Outlet Hose Replacement (LDE LUW)
Radiator Surge Tank Outlet Hose Replacement
Callout
Component Name
Preliminary Procedure
Drain the coolant. Refer to Cooling System Draining and Filling
1
Radiator Surge Tank Outlet Hose Clamps (Qty ...