When the system has calculated that oil life has been diminished, it will indicate that an oil change is necessary. A CHANGE ENGINE
OIL SOON message will come on. Change the engine oil as soon as possible within the next 600 miles (1 000 km). It is possible that, if driving
under the best conditions, the oil life system may not indicate that an oil change is necessary for over a year. However, the engine oil and filter
must be changed at least once a year and at this time the system must be reset.
Turn the ignition to RUN with the engine OFF.
Press the information (INFO) and RESET buttons on the Driver Information Center (DIC) at the same time to enter the personalization menu.
Press the INFO button to scroll through the available personalization menu modes until the DIC display shows OIL-LIFE RESET.
Press and hold the reset button until the DIC display shows ACKNOWLEDGED. This will tell you the system has been reset.
Turn the key to LOCK.
The Chevrolet Cobalt is a compact car initially introduced by Chevrolet in 2004 for the 2005 model year. The Cobalt replaced both the Cavalier and the Toyota-based Geo Prizm/Chevrolet Prizm as Chevrolet’s compact car. The Cobalt was available as both a coupe and sedan, and was based on the GM Delta platform also shared with the Chevrolet HHR and the Saturn ION. Also available was a high performance, Chevrolet Cobalt SS.
A Pontiac version was sold in the United States and Mexico under the G5 name for 2007–2009. It was sold as the Pontiac G4 in Mexico for 2005–2006 and as the Pontiac G5 in Canada for its entire run (where it was briefly known as the Pontiac Pursuit and later Pontiac G5 Pursuit). In all cases, the G5 replaced the Cavalier-related Pontiac Sunfire. While the Cobalt was available as a 2-door coupe and a 4-door sedan in all markets it was offered in, the G5 was only available as a coupé in the United States while a sedan version was sold alongside the coupé in Canada and Mexico.
As with their predecessors, all Cobalts and its Pontiac equivalents were manufactured at GM’s plant in Ramos Arizpe, Mexico and Lordstown, Ohio. The United States Environmental Protection Agency classified the Cobalt as a subcompact car.