Heating Characteristics

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

In heat mode, the TED circuits of a given seat are wired in parallel internally in the DCSM .
The climate controlled seat system draws approximately 24 amperes, with both seats heating, until reaching the set point and then the system operates at a reduced amperage to maintain the climate setting.
In heat mode, the TED can add up to 40°C-60°C (72°F-108°F) to the ambient inlet air temperature as it passes over the TED .
The system control settings are based on the 3 LEDs above each seat heat switch button on the HVAC.
In the LOW setting, the DCSM is set to maintain TED temperature at approximately 46°C (115°F) (not at seat surface).
In the HIGH setting, the DCSM is set to maintain TED temperature at 65°C (149°F) (not at seat surface).
When heating, the DCSM will vary the speed of the fans and the TED duty cycle in order to reach and maintain the temperature determined by the switch setting (closed loop operation). Refer to the following table for heating mode temperatures.
Seat heating has a maximum operating duration of 15 minutes.

HEATING MODE TEMPERATURES REFERENCE CHART

Climate Controlled Seat Heat State	Initial Temperature	Final Temperature
HIGH	90°C (194°F)	65°C (149°F)
MED	80°C (176°F)	60°C (140°F)
LOW	75°C (167°F)	46°C (115°F)