Oil pressure / timing belt with 1.2 liter petrol

Hello to each other, our Crossland X with approx. 40tKm from 2018 (model year 2019 according to VIN “J” brought at the cold start the error message “no oil pressure” plus motor lamp etc.. After turn off and restart everything well. After 2-3 of these morning scare customers drove to the FOH. No exact diagnosis, car would have to stay in the workshop until next week, then Monteur comes out of the holiday and kicks. It is a PSA engine, so I suspect the timing belt. As far as I know, ha t PSA yes ne Kulanzregierung. Does this also apply to Opel? Did anyone have similar problems? Greetings, Rico.