Switch-on conditions

WARNING: This page does not describe the selected car, but rather 45 other vehicles, including the 2016 BMW M5, 2016 BMW 550i xDrive, 2016 BMW 550i, 2016 BMW 535i xDrive, and 2016 BMW 535i. However, it is still accessible from the selected car via links, so may be relevant.

The following switch-on conditions must be fulfilled for the fully automatic trailer tow hitch:

No overvoltage or undervoltage in the vehicle voltage
Terminals greater than or equal to terminal 30B
Driving speed less than 5 km/h and speed signal is valid
Tailgate or rear window open
Connector not inserted in trailer socket

NOTE: On the F25, the system is deactivated after no later than 30 seconds with ignition switched off. LED goes out.
On the vehicles F01, F02, F07, F10 and F11, the system is disabled after 90 seconds at the latest.
The following preconditions reactivate the system:

Close tailgate or door and reopen
Switch on ignition.
press the "Open central locking system" button on the radio remote control.