What is the main cause pf limp mode the abs light comes on with it. Does that mean brake problem

Hello, there are multiple possible causes of "limp mode". One is related to electronic throttle body function (if equipped). Another would be engine temperature related. Another could be automatic transmission related. With warning lights comes available data within modules that can be accessed with a proper diagnostic tool capable of interfacing with chassis modules, for example, for the ABS light. When the diagnostic trouble codes are retrieved, it can help pin point the source of the problem with further testing. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops