BMW X1 2018 Owner's Manual page 196

CONTROLS
sensors before or after a continuous tone
sounds.
Parking spaces that are not suitable may be de‐
tected or suitable parking spaces may not be de‐
tected at all.
Tire size
The parking position may vary depending on the
tire size.
Malfunction
A Check Control message is displayed.
The parking assistant failed. Have the system
checked by a dealer's service center or another
qualified service center or repair shop.
196
Driving comfort
Online Edition for Part no. 01402120596 - II/18