GMC Sierra 2014 Owner's Manual page 487

Service and Maintenance 11-15
Usage Fluid/Lubricant
Hood Hinges Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Canada 10953474).
Body Door Hinge Pins, Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Tailgate Hinge and Linkage, Canada 10953474).
and Fuel Door Hinge
Tailgate Handle Pivot Points, Hinges, Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in
Latch Bolt, and Linkage Canada 10953474).
Weatherstrip Conditioning Weatherstrip Lubricant (GM Part No. 3634770, in Canada 10953518) or
Dielectric Silicone Grease (GM Part No. 12345579, in Canada 10953481).
Weatherstrip Squeaks Synthetic Grease with Teflon, Superlube (GM Part No. 12371287, in
Canada 10953437).