I have a 2004 SRX with a problem, it shifts hard and shifts into and out of overdrive. I used a friends trans module and it shifted good for a few days then back to the problem. Also I have a Service Stabilty light that the dealer says is a Yaw Sensor(NOT RELATED?), replaced and now stays off until I move a few miles. I don't have much money or patiance left but thought it was worth a chance.