A thermal cutout module is insertable into the starting circuit of a vehicle. The module places a thermal cutout in intimate physical contact with the ignition switch. In the event of a failure in the ignition switch creating an overheating condition the thermal cutout will open and stop current from flowing in the starting circuit. The module includes a control relay which allows the starting current to flow through the relay and not through the ignition switch contacts. LED's are provided to indicate the status of the cutout module. A portion of the module is mounted on a bracket attached to the vehicle firewall.