Warning lights on after battery out

08 Gtb spec b- i have a few warning lights on after taking the battery out to fit a transmission cooler. Install went well and i replaced the park lamps at the same time.
The 's' (mode)light and 'cruise' lights are flashing and the and 'anti skid' and 'check engine' indicator lights are on steady.
Any ideas of what might have happened
The 's' (mode)light and 'cruise' lights are flashing and the and 'anti skid' and 'check engine' indicator lights are on steady.
Any ideas of what might have happened