@vajih
there is no D3 in altis..
its either D or its 3 they shift at the same level with moving the gear lever left or right...
altis being a very powerful car can even go to pir suhawa in D without giving much trouble... but in the hidden gearbox it would be doing many gear changes(not desirable but it wont refuse to climb)... it also depends on the driver how he accelerates...
he should have done the steep climbs in 2 or L that depends on the load in the car..
@bakhive
which cars manual is this..
@all
long story short all transmissin differ in some respect.. so it is must that you read the user manual of that vehicle which you are driving..