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Hi, my name is***** warning is telling you that the oil level is too high. The shop probably added a little too much oil. You should take the car back to the shop and have them correct the oil level.
I would have them remove about 1/2 quart of oil. The oil level sensor can be overly sensitive. The can probably get the light to turn off by removing a small amount of oil. The oil level should be checked after letting the car sit for 30 minutes in order to get an accurate reading.
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