What does p062f code mean on the chevy traverse?

Fault code P062F indicates slightly different malfunctions for different manufacturers. In the case of the Chevrolet Traverse (and other Chevy vehicles), it indicates that there is a fault with the throttle control's progRamming and its communication with the powertrain control module. While the causes are numerous, it most commonly indicates an issue with the electrical system. It may indicate failure of the throttle control itself, or it may indicate shorted wiring or connectors. Alternatively, the code may be set when low system voltages or voltage spikes cause damage to certain circuits within the PCM, or it may be a byproduct of improper attempts to alter the PCM's calibration through aftermarket applications. This is a rather general diagnosis, but at least it gives You somewhere to start.