The warning triggers because the rolling radius is slightly different between your summer and winter tyres. I discovered that the Corsa uses ABS sensors to detect differences in rotation speeds to trip the tyre pressure warning.
You can reset it in one of the menus. Once reset it will then assume your reset value is the correct rolling radius and then only warn again if a tyre rotates at a different speed which normally indicates a lower or higher pressure. After speaking to a few people it seems that it doesn't take much to trigger the warning. A few friends have BMW's and all have experienced problems with it so not just VX.
I must apologise. You are correct. It seems I was misinformed. According to the owners manual the sensors are on the wheels. Bugger. That means buying sensors for the second set of wheels I was planning to buy for my winters. :-(
The tyre learning menu is purely a dealership thing, once you activate it you need a special Vauxhall calibration tool to go around each wheel individually and it wirelessly sends the psi reading back to the BCM with the pressures to set a average for calculation, the two beeps indicate the system is awaiting syncing with the device
Hi Curse2015, found this information on the Adam Users Manual and may help?
Each time the tyres are replaced, tyre pressure monitoring system sensors
must be dismounted and serviced. For the screwed sensor; replace
valve core and sealing ring. For the clipped sensor; replace complete
Auto learn function:
After changing wheels the vehicle must be stationary for approx.
20 minutes, before the system recalculates. The following relearn
process takes up to 10 minutes of driving with a minimum speed of
12 mph. In this case - - can be displayed or pressure values can
swap in the Driver Information Centre. If problems occur during the relearn
process a warning message is displayed in the Driver Information