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    2025 yukon AT4 ultimate trans overheating at idle

    So as the title states we have a 2025 AT4 Ultimate with the diesel powertrain (LZ0) with 1800 miles on the odometer. My wife went to pick up my son from school the other day and had to wait about 10 to 15 min while idling with a ambient temperature in the 80s. Then drove about two miles to grab...

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