Definitely warranty...but before you take the trouble, disconnect the battery for about 10 minutes or so and then reconnect. This may "reboot" the system and get things back to normal...other than that, you have no recourse but to take it to the dealer...

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car