It is reported that the young artist had some kind of issue with his driver's license. When he was pulled over, the faulty ID led to his being arrested.
According to his Miami-Dade County Jail booking sheet, Pump doesn't have a valid driver's license. The Florida native remains in custody.
The reason why Pump was pulled over in the first place has yet to be disclosed. If he is indicted for any charges, he will most likely be tried as an adult since his 18th birthday passed a couple of weeks ago. Earlier last year, the "Drug Addict" rapper had been taken into custody after shooting up his own home and sent to a juvenile detention center.