To reset the 2017 Buick Cascada remaining oil life % after an oil change service, please follow these instructions:
1. Turn the ignition to run (one position before starting engine). 2. Press the DIC menu button on the turn signal lever to enter the vehicle information menu. Use the thumbwheel to scroll through the menu items until you reach REMAINING OIL LIFE. 3. Press the SET/CLR button to reset the oil life to 100%. 4. Turn the ignition off and start the engine to verify the indicator has been reset.