Navigational (global Positioning System) Gps problems of the 2007 Chevrolet Corvette

The subframe radiator core support broke. In order to complete the repair the battery was disconnected. After the repair was complete the battery was reconnected. Now the radio doesn't display the gps clock. Clock doesn't work it will not let you set the clock display. I read online that the satellite codes were reset for vehicles years 2005-2011. So when the batter is disconnected the radio software goes haywire when this problem is brought to Chevrolet attention the garage said that reprograming the radio could fix the problem cost $160. 00 this should be recalled and fixed at Chevrolet garage on their dime they caused the problem they should provide the fix cost free several forums in the Corvette community are available online no one has a fix listed for this problem happened while stationary problem is constant disconnect battery then reconnect battery regardless if your doing a repair or replacing the battery the radio software goes haywire and the clock doesn't display and won't let you set it it won't enter into any set mode.