Welcome to the site. I don’t know what you Googled but sticking the year and model in.got pages of matches where you can find the tyre pressures depending on model, reg and tyre sizes.. For example Kwikfit website (or other similar ones) you can put your reg in for a specific value. As already said it will be in the range of 30-35.
I assume the system works on monitoring the wheel rotations rather than actual pressure so as long as you have the same pressure on both wheels across an axle and reset the system you should be OK if the tyres hold their pressures.