Transmission Temperature Dashboard Light

Transmission Temperature Car Dashboard Light

Transmission Temperature: Because the transmission fluid is hotter than usual, the transmission is running at a greater temperature than it should be. Check the fluid levels in the gearbox and the engine coolant.

The following are some interesting facts regarding Transmission Temperatures:

Your transmission should be kept at a temperature of 200 degrees. The lifetime of your transmission is decreased by a ratio of two for every 20 degrees over 200. In other words, if you heat your transmission to 220 degrees, you should expect it to last approximately half as long as it normally would. Your transmission will survive approximately 1/4 as long as it should at 240 degrees. And if the temperature rises over 260 degrees, your life will be reduced to 1/8 of what it is normally.

Transmissions that are too hot emit an odor. Your Transmission Temperature Light should illuminate if your transmission overheats. However, bear in mind that warning lights are not foolproof, so pull over if you smell anything unusual (typically a pleasant odor). Allow time for your transmission to cool.

Checking the fluid in your gearbox may help you figure out whether it’s overheated. Transmission fluid is not like engine oil in that it does not burn under normal conditions. There is a high probability that something is wrong if the fluid level is low. It’s pretty likely that you’re overheating if the fluid is black.

7 Reasons Why Your Transmission Warning Light Is Illuminated

Unfortunately, there is no one-size-fits-all solution for why the transmission warning light is on. The following are some of the most frequent sources of light:

1.) Overheating Transmission

The most frequent reason of a lit transmission light is transmission overheating. An blocked transmission cooler to an internal transmission issue may be the source of the overheat situation. Overheating of the gearbox may also be caused by certain driving behaviors, such as hauling a load that is too large for your vehicle.

2.) Transmission Fluid Level Is Low

A low fluid level may result in a variety of transmission performance issues, including internal damage. The system may detect irregular vehicle activity as a consequence and illuminate the transmission warning light. Keep in mind that your vehicle’s gearbox does not burn fluid as an engine does. If the transmission fluid level is low, there is a leak that must be repaired.

3.) Failure of Internal Transmission

Automatic transmissions are complicated systems with a lot of internal parts (i.e., clutch packs, planetary gear sets, etc.). When one of those components fails, the system may detect an irregular vehicle operation and illuminate the transmission warning light.

4.) Issues with Shift Interlock

The transmission warning light does not necessarily indicate that the transmission is malfunctioning. The light may appear on certain BMWs when the shift interlock system—a device that stops the driver from moving the gear selector out of “park” without depressing the brake pedal—is malfunctioning.

5,) Problems with the Valve Body

A valve body is found in most continuously variable transmissions (CVTs) and traditional automatic gearboxes. A collection of tubes in the valve body direct fluid flow via valves to different sections of the gearbox. The transmission control module (TCM) and associated electronics are often included in modern valve bodies.

A problem with the valve body may cause the transmission to malfunction, causing the transmission warning light to illuminate.

6.) Issues with Torque Converters

A torque converter is used in most automatic gearbox systems. Between the engine and the gearbox, the torque converter functions as a fluid coupling mechanism. Under some circumstances, a lockup clutch inside the converter offers a mechanical connection between the engine and gearbox.

The torque converter may develop issues over time, such as shaking and slippage. A faulty converter may even break apart and contaminate the transmission with debris in certain cases. The transmission warning light may illuminate as a result of issues like these.

7.) Electronics and Computer Controls Issues

The gearbox, like almost every other component of a contemporary vehicle, is controlled by a control module that receives data from a variety of sensors. Over a data network, the module interacts with other modules.

Sensor, module, and data network difficulties may all cause the transmission warning sign to illuminate. Other electrical issues, such as broken wiring or a malfunctioning shift solenoid, may also cause the transmission warning light to illuminate.


Thank you -Erwin