Leaders in Electronic, Electro-Mechanical and Vacuum-Actuated HVAC Controls TRW Automotive is one of the world's largest suppliers of heating, ventilating and air conditioning controls.  TRW Automotive designs and supplies cost-effective controls for all electronic, electro-mechanical and vacuum-actuated heating, ventilating and air conditioning systems. Electronic Control Features Automatic temperature maintenance for driver/passenger comfort Car body-independent software can be tailored to meet any required system performance level Automatic mode shift for greater utility Self-diagnostic capabilities included TRW Automotive provides a complete HVAC driver control and comfort package.  Its worldwide manufacturing facilities utilize state-of-the-art automated assembly lines to deliver the optimal product, at the highest level of quality and reliability, on time and in a cost-effective manner.