...with Citroëns, the driver can select from four
height settings (although the selector is no longer mechanically coupled with the hydraulics, it is a simple electronic switch sending signals to the computer): high, track (plus 40 mm), normal and low. The selected setting is displayed on the multifunction screen in the dashboard. The computer also prevents unsuitable settings being selected. The high option is not available when the car is traveling faster than 10 km/h and neither track nor low mode can be selected above 40 km/h
Peccavi, January 2013