Works now. I left it alone for five, six hours and it works as it's supposed to. Maybe it had to go to sleep? Wonder if that's why the start without brake pedal never worked for me. I think you have to make sure there's nothing plugged in the OBD2 port, too, to let it sleep.

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8/2011 X5 xDrive35d Sport, Black Sapphire Metallic, Black Nevada Leather, Fine Burr Walnut Trim
2/2001 M5, Jet Black, Exclusive Complete Black Walk Nappa Point Heritage Leather, Black Cubic Trim