The Transmission Temperature Warning Light illuminates in Jeep Grand Cherokee to alert the driver when the transmission fluid temperature is too high.
The transmission fluid helps lubricate and cool the various components within the transmission, and if it becomes too hot it can cause damage to the transmission. The warning light will typically turn on when the transmission fluid temperature exceeds a certain threshold, and it is important to take action to address the issue as soon as the light comes on to prevent further damage.
Stop driving
The Transmission Temperature Warning Light 
turns on in Jeep Grand Cherokee when the transmission fluid is overheating. This can happen when the vehicle is being used for heavy tasks, such as towing a trailer. If the light comes on, it is important to stop the vehicle immediately and let the engine run while in park or neutral gear until the light turns off. Once the light turns off, the vehicle can be driven normally again.
Causes of overheating transmission
There can be several causes for the Transmission Temperature Warning Light to turn on in a vehicle, including:
Low transmission fluid level: If the transmission fluid level is low, the transmission may not be able to properly cool itself, leading to an increase in temperature.
Overheating due to heavy usage: Towing a trailer, driving on steep hills, or other forms of heavy usage can put additional stress on the transmission, causing it to overheat.
Problem with the transmission control module (TCM): In some cases, a problem with the transmission control module can cause the transmission to overheat.
If the warning light comes on, it’s recommended to stop the vehicle and check the transmission fluid level or consult with a professional mechanic to diagnose and fix the problem.
