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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1708 (Hybrid Cooling System - 3.6L (Hp5)) >> Description and Operation >> Drive Motor Generator Control Module Cooling System Description and Operation >> Hybrid Cooling >> Coolant

Hybrid Cooling: Coolant

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The drive motor/generator control module assembly is cooled by a solution made up of a 50-50 mixture of DEX-COOL® and De-Ionized water. De-Ionized water is required to prevent corrosion from effecting heatsink performance. The coolant solution carries excess heat away from the drive motor/generator control module assembly to the radiator, where the heat is dissipated to the atmosphere. Always use pre-mixed coolant and never use tap water in the power electronics coolant system.