Should I go back to the dealer?

[exsterminator]

I have an 04 X5 4.4 still under CPO warranty. I took it in to the dealer the beginning of this week because there was a small transmission fluid leak, and as per the work order, they replaced the mecatronics sleeve and transmission pan gasket. They then took it on a test drive and all was fine.

The wife called me yesterday morning to say there was an error message on the display that was something like "transm. error" and the hand brake light wouldn't go away. She was just leaving home in the morning and said eventually the error message went away but the hand brake light stayed on.

Last night she came home and said all was fine, no error messages or incorrect lights. Should I call the dealership and explain this to them or just let it go? I drove the car to work this morning with no problems whatseoever.

Thanks,

[blktoptrvl]

Note when it happened.
Call the dealer, explain the situation in which the error displayed and the fact that it is now gone.
Ask them if they want to see the vehicle.