Would transmission replace be covered if slipping and fluid burnt at 53,000 mile

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High rpms, problems shifting gears, burnt transmission fluid. It’s a 2015 Jeep Compass latitude with 53,000 miles. The dipstick tube tip is broken making it slightly shorter but according to mechanic it has no effect on the transmission. Two Mechanics advise not to change fluid or it will make transmission go completely out and also say dipstick tube would not cause the transmission to slip or burn fluid.