LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> BMW >> 2012 >> X3 35i >> Repair and Diagnosis (Single Page) >> General Information >> OEM General Information >> Functional Descriptions - F25 - Charging System, Anti-Theft, Body Electrical Systems >> Anti-Theft Systems - Functional Description >> Central locking system (Ver.1) >> Operating facility, hazard warning switch and central locking button
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Operating facility, hazard warning switch and central locking button

The hazard warning switch and the central locking button are combined in a single component.

Using the central locking button, the vehicle can be locked or unlocked from the passenger compartment (prerequisite: both front doors closed).

The following are locked or unlocked:

The fuel filler flap is not locked. The storage compartment of the center console in the convertible is not locked.

It is not possible to use the central locking button for double-unlocking and deadlocking.

Pressing down on the central locking button forwards the button signal via a direct line connection to the junction box electronics (JBE).

If all preconditions are satisfied for locking or unlocking, the junction box electronics activates the central locking drive on the doors and the central locking drive at the tailgate.

Fig 1: Identifying Central Locking Button And Hazard Warning Switch
G09908692Courtesy of BMW OF NORTH AMERICA, INC.
Index Explanation
1 Central locking button
2 Hazard warning switch