thanks for the direction. I will check the temp. What sensor would you guess to be the faulty one?
There could be a variety of things causing that light to come on...you should check the codes to see if a code was stored that might indicate what the problem is. But at least taking the temp will let you know right away whether you are about to fry your AT or not.
Not sure where you are located but AutoZone stores will usually check codes for free.
Here is a list I think of Subaru trans codes:
DIAGNOSTIC TROUBLE CODES DIAGNOSTIC TROUBLE CODE
DTC Faulty Component
11 Engine speed signal circuit
27 ATF temperature sensor
31 Throttle position sensor
33 Front vehicle speed sensor
36 Torque converter turbine speed sensor
38 Torque control signal circuit
45 Intake manifold pressure signal circuit
71 Shift solenoid 1
72 Shift solenoid 2
73 Low clutch timing solenoid
74 2-4 brake timing solenoid
75 Line pressure duty solenoid
76 2-4 brake duty solenoid
77 Lock-up duty solenoid
78 Sports shift solenoid
79 Transfer duty solenoid
86 VDC communication
93 Rear vehicle speed sensor