A wholly owned subsidiary of GM, GM Components Holdings LLC, includes the following plants in New York, Michigan and Indiana: Thermal Systems, Lockport, N.Y. – HVAC climate control systems, powertrain cooling systems. Powertrain, Rochester, N.Y. – engine management systems and related products. Powertrain Systems Grand Rapids, Wyoming, Mich. – valve train products. Electronics and Safety, Kokomo, Ind. – semiconductors, thick film hybrids and electronic assembly. The GM Components Holdings plants manufacture and sell to GM and many other automotive and non-automotive customers.