See also:

Engine Oil Additives/Engine Oil Flushes
Do not add anything to the oil. The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protection. En ...

Add-on Electrical Equipment
The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfer ...

Technology reinforces multidimensional design philosophy
Cadillac XTS' hardware and spatial dimensions are the foundational layers that support a new level of surface detail. Multidimensional exterior and interior elements, including the grille, headlam ...