2002 OLDSMOBILE BRAVADA User Comment / Complaint

Tl contact owns a 2002 oldsmobile bravada. while making a left turn at approximately 5 mph under normal conditions, the vehicle switched from two wheel drive to four wheel drive. the vehicle came to a complete stop. this type of failure is called a crow hop. the contact had to accelerate in order for the vehicle to drive again. while making another turn, the four wheel drive locked. each time the failure occurred, the vehicle would not move. the vehicle was taken to the dealer and they changed the differential fluid, but that did not correct the failure. through a service bulletin issued by the manufacturer, the contact discovered that the encoder sensor from the transfer case needed to be replaced and the tcm sensor needed to be reprogrammed. the current and failure mileages were 40,000.