How to reset the maintenance light on a Cadillac ATS?

[GavinAnn]

To reset the maintenance light on a Cadillac ATS, press and hold the engine start/stop button while releasing the brake pedal until the ignition switch enters the engine-off mode. Use the SEL button on the right side of the steering wheel to navigate the menu until the Oil Life Monitor appears. When the monitor is active, press and hold the SEL button until the monitor resets. Here are specific details about resetting the maintenance light on a Cadillac ATS: 1. If the 'Change Engine Oil Soon' message does not appear, the reset was successful. If the 'Change Engine Oil Soon' message reappears after starting the vehicle, the engine oil life system was not reset, and the above procedure should be repeated. Note that unless the oil has been changed, care should be taken not to accidentally reset the oil life display. The system can only be accurately reset at the next oil change. 2. The Cadillac ATS is equipped with a computer system that indicates when to change the engine oil and filter. The change interval depends on various factors, including engine speed, engine temperature, and mileage. Depending on driving conditions, the mileage at which the oil change is indicated can vary significantly. For the oil life system to function correctly, it must be reset every time the oil is changed.