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To reset the 2015 Cadillac CTS oil light, please follow these instructions:
1. Turn the ignition to run (one position before starting engine).
2. *Use the DIC controls on the right side of the steering wheel to display the REMAINING OIL LIFE.
3. Press SEL on the DIC controls.
4. Hold SEL down for a few seconds to reset the oil life to 100%.
5. Turn the ignition off and start the engine to verify the indicator has been reset.
*Remaining oil life can also be reset by depressing the gas pedal 3 times within 5 seconds instead of using the DIC.
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