VDC light and ABS light on. Sometimes push button won’t start but radio and air come on

Hello, it sounds like you could have a power supply issue, like inconsistent battery performance. You could also have problems with your anti lock brake system or vehicle dynamics control system (ABS and VDC), so testing should also be performed there to see what kind of chassis trouble codes are present in the ABS module. They could be low voltage codes, however, related to battery operation and capacity. You will not know until you perform needed testing utilizing a diagnostic tool capable of checking chassis related codes and monitoring chassis related components.