BMW 535i Owner's Manual page 230

Confirm the automatic activation.
▷ Snow chains are not mounted. The setting
is activated .
At speeds above 30 mph/50 km/h, a warning
lamp lights up and a message is displayed.
Deactivate the status manually.
If not functioning properly:
▷ Snow chains are mounted. The setting is not
activated .
A message does not appear on the Control
Display.
The automatic detection system is malfunc‐
tioning. Activate the status manually.
Activating/deactivating rear axle
steering
If the status indicating that snow chains are in
use is activated, the rear axle steering is deacti‐
vated automatically.
At speeds above 30 mph/50 km/h, the rear axle
steering is activated again, even though snow
chains are in use.
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