Engine Oil
To ensure proper engine performance and long life, careful attention must be paid to engine oil. Following these simple, but important steps will help protect your investment:
- Always use engine oil approved to the proper specification and of the proper viscosity grade.
See “Selecting the Right Engine Oil” in this section.
- Check the engine oil level regularly and maintain the proper oil level. See “Checking Engine Oil” and “When to Add Engine Oil” in this section.
- Change the engine oil at the appropriate time. See Engine Oil Life System.
- Always dispose of engine oil properly. See “What to Do with Used Oil” in this section.
See also:
Engine Compartment
Fuse Block
(CTS Coupe and Sedan)
The underhood fuse block is
located on the left side of the engine
compartment.
Lift the fuse block cover to access
the fuses.
The vehicle may not be equipped
with all of the fuses and rel ...
Connections
OnStar Hands-Free Calling allows calls to be made and received from the vehicle.
The vehicle can also be controlled from a cell phone through the OnStar RemoteLink
mobile app. See www.onstar.com f ...
Compact Spare Tire
WARNING
Driving with more than one compact spare tire at a time could result in loss of
braking and handling. This could lead to a crash and you or others could be
injured. Use only one compact sp ...