repair the leak
You replace the radiator
Some have an internal transmission cooler & extra small internal radiator for that purpose.
Probably a radiator leak or a split radiator hose.Check coolant levels in the radiator.
there could possibly be an internal leak in the radiator if the lines from the trans are going to the radiator pull the rad cap and check the coolant and also fluid also burns up and sludges up
a hole in the radiator
First of all, check the thermostat, the radiator fan, radiator hoses, water pump, radiator leaks. P.s. If you install a radiator fan universal and it don't place really close to the radiator, you can have that problem
Be care-full my radiator blew up and burnt me. I replaced Radiator, thermostat, and water pump. Timing belt is in the way so I replaced it too. OK Now
It is the radiator warning light. Usually it indicates low radiator fluid level. I have had this come on when I have had some minor radiator leaks leading to radiator coolant level going down.
First You Would find the drain plug on the left or right of the bottom of the radiator,locate the plug screw the plug out let the fluid drain put the plug back,go to a local parts store get 1 gal. of antifreeze pour that in first, then fill the rest of the radiator with water/check for leaks,no leaks your set for life.
Take your vehicle to a service center. They can run a dye through your A/C system to locate any leaks you have.
Check your transmission fluid levels. Look around for leaks...you'll see a reddish fluid around the drive axle on your transmission or around the radiator.
Several solutions: Change the thermostat (could be sticking shut).....backflush your radiator....could be dirty and clogged, replace radiator hoses, check for pin hole leaks in your radiator. Is the fluid level staying normal or are you constantly adding anti-freeze? Halfway on the scale is normal.