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What Causes the Transmission Overheat Warning in the Envision?

2 Answers

McJayden

07/29/25 8:13am

Transmission overheating can be caused by the following factors: Engine and coolant temperature too high: Prolonged engine overload operation can increase the coolant temperature, thereby affecting transmission cooling. Additionally, insufficient coolant in the radiator reduces the cooling system's effectiveness, leading to transmission overheating. Transmission clutch slipping: Clutch slippage generates additional heat, raising the transmission temperature and degrading transmission fluid quality, which in turn accelerates transmission wear. Thermostat sticking: If the transmission thermostat gets stuck, transmission fluid cannot circulate through the cooling system, preventing heat dissipation. Insufficient transmission fluid: Low transmission fluid levels increase gear shift roughness and reduce cooling efficiency, causing temperature rise and potential internal damage.

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JamesRose

08/12/25 11:25am

When I first drove the Enclave, I was quite panicked by the transmission overheating warning. The main reason was probably driving too aggressively, such as rapid acceleration in succession or climbing steep slopes with heavy loads, which put excessive strain on the transmission and caused the oil temperature to rise rapidly. Low oil levels or leaks can also worsen cooling issues, triggering the warning light. If this happens, I recommend slowing down immediately, pulling over, and turning off the engine for at least half an hour to let it cool down. Afterward, check whether the oil level is normal. Pay attention to smooth driving in daily use, especially during long trips—don’t forget to inspect the oil tank and oil quality. This can effectively prevent overheating issues and protect the transmission's lifespan.

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