In vehicles with a manual transmission, Start-Off Assist (AAS) can be added as an option for guaranteed smooth starts.

It is a particularly useful driver aid on uphill or downhill slopes. Once the brake pedal has been released, Start-Off Assist maintains the brake pressure for approximately two seconds, thus allowing the driver to switch from the brake to the accelerator pedal without having to worry about the vehicle starting to roll. The brake pressure is released instantly as soon as Start-Off Assist detects that the driver wishes to move off. This practical aid makes light work of pulling away on steep slopes in the Viano.