Resetting the system
Reset the system after each correction of the tire inflation pressure and after every tire or wheel change.
1. "Vehicle Info"
2. "Vehicle status"
3. 
"Reset"
4. Start the engine - do not drive away.
5. Reset the tire pressure using "Reset".
6. Drive away.
The tires are shown in gray and "Resetting TPM..." is displayed.
After driving for a few minutes, the set tire inflation pressures are applied as set values. The resetting process is completed automatically during driving. The tires are shown in green and "TPM active" is shown on the Control Display.
The trip can be interrupted at any time. If you drive away again, the process resumes automatically.
If a flat tire is detected during a reset, all tires are displayed in yellow.
See also:
Displaying the button assignment
Use a finger to touch the buttons. Do not wear
gloves or use objects.
The key assignment is displayed at the top edge
of the screen.
▷ To display short information: touch the button.
...
2012 BMW 3 Series Sedan: First Look
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Vehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle, ...