Hyundai Genesis DH Quiz
Automatic Transmission System (SBC)

ATF Warmer Description and Operation

In this manual: Automatic Transmission System (SBC)
General Information — 9Engine Mechanical System — 103Engine Electrical System — 54Emission Control System — 23Engine Control System/Fuel System — 127Automatic Transmission System (SBC) — 90All-Wheel Drive (AWD) System — 20Drive Shaft and Axle — 27Suspension System — 41Steering — 19Restraints — 56Brake System — 56Body (Interior and Exterior) — 211Body Electrical System — 279Heating, Ventilation, and Air Conditioning — 55
~1min read

Description

The ATF warmer is installed on the transmission to reduce viscous friction of the oil by raising its temperature when cold, which in turn improves fuel efficiency. It is installed in series at the inlet of the Electronic Throttle Control (ETC) as shown in the diagram, and minimizes the effect on the heater system.
  • Engine coolant is used to circulate heat to warm up and cool the transmission fluid.
  • Quickly raises the temperature of the transmission fluid during initial cold engine start.
  • Prevents overheating of the transmission fluid during vehicle operation.
  • Warming and cooling of the transmission fluid can be performed by a single system.
  • Water coolant and oil are separated for heat exchange.

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A quick Hyundai Genesis DH quiz: every answer comes with an explanation and a link to the manual page.