OBDII code P0888

Hello, this code indicates a concern with the transmission control system. A relay could be of concern, but several other things could be also. Hands on testing is needed to find the real root cause of the problem. As far as driving - if the vehicle appears to be driving totally normally, then I would say temporarily driving without caution is OK. However, a trouble code indicates a present concern, and continuing to operate for a period of time is not advised. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops