My low pressure light came on the other day so i checked the pressure and it was ok. Took it to the dealer and they don't know how to turn the light off. Anyone else have this problem?

 

Read a TSB today that stated the Tire pressure monitoring system can set an erroneous trouble lite when driven in heavy traffic or when idling in gear for extended periods of time. Perhaps you were in traffic? Have your dealer check the TSB's and reset the BCM with a scanner, Maintenance reminder resets would be the category to check in the OBD II system resets.