check the internet
in prosmatec
D means all 5 gears
D3 means first 3 gears
2 and 1 locks the transmission in the respective gear
it is for slippery surfaces cause the car spins tyres in first gear so 2nd is used
in corolla, in 2 position, the transmissions shifts between 1st and 2nd but not in prosmatec
check another new civic and you ll know
I have checked other civics man..........all do the same thing