[Davis]

Not sure if this is what you are looking for but, this is what the manual states:

When the Change Engine Oil Soon message displays, service is required for the vehicle as soon as possible, within the next 1,000 km/600 miles. If driving under the best conditions, the engine oil life system might not indicate the need for vehicle service for more than a year. The engine oil and filter must be changed at least once a year and the oil life system must be reset.

Hope this helps.