When to Change Engine Oil
This vehicle has a computer system that indicates when to change the engine oil and filter. This is based on a combination of factors which include engine revolutions, engine temperature, and miles driven. Based on driving conditions, the mileage at which an oil change is indicated can vary considerably. For the oil life system to work properly, the system must be reset every time the oil is changed.
When the system has calculated that oil life has been diminished, it indicates that an oil change is necessary. A CHANGE ENGINE OIL SOON message comes on. See Engine Oil Messages . Change the oil as soon as possible within the next 1 000 km (600 mi). It is possible that, if driving under the best conditions, the oil life system might indicate that an oil change is not necessary for up to a year. The engine oil and filter must be changed at least once a year and, at this time, the system must be reset. Your dealer has trained service people who will perform this work and reset the system. It is also important to check the oil regularly over the course of an oil drain interval and keep it at the proper level.
If the system is ever reset accidentally, the oil must be changed at 5 000 km (3,000 mi) since the last oil change. Remember to reset the oil life system whenever the oil is changed.
See also:
Entry Lighting
The vehicle has an illuminated entry feature.
When the doors are opened, the dome lamps will come on if the dome override button
is in the extended position. If the dome override button is pressed ...
Powertrains
Direct injection technology helps the Cadillac CTS offer more power while
maintaining fuel economy and lowering emissions. It delivers fuel more precisely
to increase the efficiency of combustion. ...
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 mobile app. See
www.onstar.com for co ...






