Why is the transmission warning light on but the car still drives normally?

1 Answers
CoreyDella
07/29/25 12:36pm
If the transmission warning light is on but the car still drives normally, it indicates there may be an internal issue with the transmission. You can use a diagnostic tool to read the fault code and then identify the problem based on the code. Reasons for the transmission warning light being on: 1. Transmission overheating: After high-intensity driving, the transmission temperature may rise abnormally. Simply park the car and wait for the temperature to drop naturally. 2. Transmission gear slippage: This requires professional inspection at a repair shop or 4S dealership. 3. Low transmission fluid: The warning light will illuminate when transmission fluid is low, reminding the driver to replenish it promptly. Generally, transmission fluid needs to be replaced or topped up every 50,000 to 80,000 kilometers. 4. System false alarm: If the warning light is caused by a system error, restarting the vehicle may resolve the issue.
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