What does it mean when the AT Oil Temp light is on?
Change the transmission fluid regularly We recommend that you change the transmission fluid every 30,000 to 60,000 miles, and more often if you drive long-haul routes, operate your vehicle in hot climates, or tow heavy loads. This reduces transmission wear, which in turn reduces the risks of overheating.
Reasons for overheating include low fluid levels, leaks, burned, old or dirty fluid, or problems with the solenoid. You can ensure the long life and efficient performance of your transmission – and your car – by doing some things to make sure it does not run too hot.
A quality conventional motor oil will tolerate oil sump temperatures of up to 250 degrees, but starts breaking down over 275 degrees. The traditional approach is to try to hold oil temperatures between 230 and 260 degrees.
What to do when your transmission is overheating:
If you see this red light come on in your car, you should first pull over to allow your transmission to cool. If not, you could cause expensive transmission damage. Then, as soon as you can, bring your car in to have it serviced immediately.
Is AT oil Temp dangerous?
automatic transmission fluid temperature
If you see the “AT OIL TEMP” light come on in the dash, that’s telling you your automatic transmission fluid temperature is too hot. Allow the engine to idle while the transmission cools down and let this light turn itself off.