Possible Causes:
* Low Transmission Fluid: This is the most common cause. Low fluid level reduces cooling capacity, leading to overheating. Check your fluid level immediately. Do this while the engine is running and warmed up, and use the correct dipstick. Low fluid can also point to a leak somewhere in the system.
* Fluid Contamination: Dirty or degraded transmission fluid loses its lubricating and cooling properties. This can be due to:
* Old fluid: Transmission fluid should be changed according to the manufacturer's recommended intervals.
* Contaminants: Debris from a failing transmission component, or even water ingress, can contaminate the fluid.
* Transmission Problems: Internal problems within the transmission itself can generate excessive heat. This could include:
* Failing torque converter: This component transfers power from the engine to the transmission.
* Worn clutches or bands: These internal components wear out over time and can generate heat when slipping.
* Problems with the valve body: This controls the flow of fluid through the transmission.
* Cooling System Issues: While less common for a direct transmission overtemp, problems with the vehicle's overall cooling system (radiator, coolant pump, etc.) could indirectly affect transmission temperature if the transmission shares a cooler with the engine coolant.
* Driving Habits: Excessive towing, prolonged idling in hot weather, or aggressive driving can all contribute to transmission overheating.
What You Should Do:
1. Do NOT ignore the warning. Continuing to drive with an overheated transmission will likely cause irreversible damage.
2. Check the transmission fluid level: As mentioned above, this is crucial. If it's low, you need to find and fix the leak. Adding fluid is a temporary solution, not a fix for the underlying problem.
3. Check the transmission fluid condition: Is it dark, burnt smelling, or contains debris? If so, it needs to be replaced, and the cause of contamination should be investigated.
4. Have it professionally diagnosed: Take your Jeep Commander to a qualified mechanic or transmission specialist. They have the tools and expertise to properly diagnose the problem. Ignoring this warning can lead to a costly transmission rebuild or replacement.
5. Avoid driving the vehicle until the problem is fixed. Continuing to drive with a transmission overtemp light can cause significant and costly damage.
The cost of repair will vary depending on the underlying cause. A simple low fluid level might be relatively inexpensive, while a major internal transmission problem could be very costly. Getting it checked immediately is the best way to avoid the worst-case scenario.
