Dear gear shifting in auto trans have few variable factors. It depends on how much u r accelerating, r u running uphill or downhill etc. In normal circumstances, if u press accelerator pedal normally it should shift gears at 25 km/h 2nd gear, at 45 km/h 3rd gear, at 65 km/h 4th gear and at 85 km/h 5th gear. [5th gear will com into play only if o/d is off. With 0/d on it remains in 4 gears and give extra power]. Nonetheless, u may also control gear shifting with accelerator pedal, as if needed, by pressing pedal hard i can run my car upto 40-45 km/h in 1st gear and in 2nd gear upto 65-70 km/h.
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