Equip your vehicle to be Ready for the Road Ahead , with the Tekonsha Primus IQ Proportional Brake Controller. Thanks to its petite body, this replacement part neatly fits under the dash of vehicles to alert them when a secure connection has been made with the trailer. Once installed, users can choose from three levels of braking power to pick the ideal strength for the cargo they are towing. FleetPride is your First Click in Heavy Duty .