Hi all sifu.i have gear problem,when i drive maintain around 40km/h in trafic jam.my gear not shift up,suddenly the gear like free gear,and warning light gear.i solve the problem by stop my car,shut off the engine around 10 sec.after that my car can run like normal.anyone here know what the real problem.i have ask my machanic,but when he test drive the car.the gear run like perfect condition.so he also don't know what the problem.:stupid: