Set the switch handle to one of the positions "0", "1", "2" or "3" using the recommendations given in the table:
| Switch position | Number of passengers in the front seats | Number of passengers in the rear seats | Weight of luggage in the trunk of a car |
| 0 | 1 or 2 | No | No |
| 1 | 1 or 2 | 3 | No |
| 2 | 1 or 2 | 3 | About 90 kg |
| 3 | 1 | No | About 290 kg |
When towing a trailer, switch positions "2" or "3" should be used according to the number of passengers, as shown in the table.