Sounds normal for Honda's smart autobox. Because the engine doesn't make mountains of torque at low RPM, the ECU doesn't let the gearbox shift into 4th when you are at 2200rpm and it detects city-type driving because it would take it down to about 1300-1500rpm and cause engine lugging. If you do do the same speed in 3rd gear downhill, then it should detect the downhill and shift into 4th. This is a feature called Honda Grade Logic.




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