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1991 CADILLAC SeVille Maintenance Light Reset Instructions

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1. Turn the ignition to run (one position before starting engine).
2. Press ENG DATA until oil life index is displayed.
3. Press ENG DATA and RANGE simultaneously until oil life index resets to 100 (hold about 5 seconds).
4. Turn the ignition off and then start the engine to verify the indicator has been reset.

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