Transmission Fluid Leaking problems of the 2006 Infiniti QX56

Tl- the contact owns a 2006 Infiniti Qx56. The contact stated that while driving approximately 65 mph vehicle suddenly failed to accelerate and began shake and vibrating before reducing speed and stalling in the middle of the highway. The vehicle was towed to an independent mechanic who diagnosed that the radiator had failed and leaked radiator fluid into the transmission fluid which caused the transmission to fail. The mechanic diagnosed that the transmission needed to be replaced. The vehicle was not yet repaired. The manufacturer was informed of the failure. The local dealer was not notified. The failure mileage was 200,000. Jft.