I hadn't really considered the key because the car pre-heats like normal....would the computer allow the car to pre-heat if it didn't recognize the key?

The batteries in my key are only a few months old, but I have another key I can try and see if it does it with that one too...thanks for the tip.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz